2003 Nissan Altima Fuel and Emissions Systems

Name: Fuel Pump Module Assembly
Brand: Spectra Premium
SKU: SP4008M
Price: 285.99 USD

Below you will find various in-demand Nissan Fuel and Emissions Systems, components and accessories for your 2003 Altima. Advance Auto Parts has popular Altima parts like Gas Caps, Fuel Pumps, Oxygen Sensors and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other Altima model years including 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 and more. Select a category of 2003 Nissan Altima Fuel and Emissions Systems below and start saving instantly.

Popular 2003 Nissan Altima Fuel and Emissions Systems Categories

Air- Fuel Ratio Sensors

Fuel Tank Cleaning Kits

Air Flow Meters and Mass Air

Gas Caps

Fuel Pumps

Oxygen Sensors

Vapor Canister Vent Solenoids

Canister Purge Solenoids

Fuel Injectors

Vapor Canisters

Ambient Air Temperature Sensors

Fuel Injector O-Ring Kits

Fuel Injector Seal Kits

Fuel Tank Straps

Fuel Injector Gaskets

Fuel Tank Lock Rings

Fuel Tank Filler Necks

Fuel Injector Connectors

Mass Air Flow Sensor Connectors

Pressure Dampers

Fuel Injector O-rings

EGR Valve Gaskets

Diesel Fuel Line Seal Rings

Crankcase Breather Hoses

EGR Vacuum Regulator Solenoid Connectors

Fuel Cap Tester Adapters

Fuel Injection Fuel Rail Insulators

Essential Fuel and Emissions Systems for 2003 Nissan Altimas

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$285.99

CARQUEST fuel pump modules offer OEM or better performance from an Original Equipment Supplier. The latest advancements in fuel delivery technology are built-in to every CARQUEST Fuel Pump to deliver greater reliability.

Product Features:

Every single pump is 100% tested throughout the entire manufacturing process for worry free, out-of-the-box performance
Triple barb hose fitting provides superior, long-lasting seal
Superior return porting for optimum fuel flow
Enhanced pump to flange harness design provides worry-free electrical performance
Ceramic sender card and float arm that utilizes vehicle-specific geometry to ensure accurate fuel gauge readings for each and every application
Gradient density, dual zone filtration designed for better contamination resistance

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$45.99

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

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$159.99

WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to

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$99.99

Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

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$1.85

Fuel Rail Insulator

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$148.99

Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank filler necks meet or exceed the performance of the original equipment they replace.

Product Features:

Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertise
Unit is dual coated for enhanced corrosion protection
Fit tested on the very same vehicle application for which it was developed verifying first-hand that the design fits properly and can be easily installed
Unit is leak tested after production to ensure product in free from fuel and / or evaporative leaks
Tested with OE fuel cap to prevent evaporative emission and check engine light failure

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$350.89

All Delphi Air Mass Sensors feature a patented dimpled flow management feature that provides better control of air separation for more consistent air flow across the sensing elements and enabling outstanding performance in application-specific ducting.

Product Features:

Platinum-coated ceramic heated sensing element design is smaller and less fragile than competitive products
Heated sensing elements are very robust to damage from dust impingement
Heated sensing elements offer proven durability with more that 130 million in the field over the past 16 years
Patented temperature compensation algorithm offers robustness to changes in ambient air temperature
Patented dimple design eliminates the need for a flow straightener in most applications
Probe design offers low restriction air measurement driving increased horsepower
Interchangeability is enabled by common mounting footprint

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$16.79

ACDelco Professional Air Charge Temperature Sensor Connector is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, starting and charging, body-electrical and lighting, and/or engine fuel management. This premium aftermarket connector is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$14.08

Breather Hose

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$3.29

The ACDelco Professional Fuel Injector Seal Kit contains high quality aftermarket replacement components for one or more of the following vehicle systems: ignition, and/or engine fuel management. This premium aftermarket kit contains components that are manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$155.99

Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.

Product Features:

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Direct Fit includes OE Connector for easy installation
Performance meets or exceeds OE specifications
True Direct-fit OE connectors and harness

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$249.99

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$2.66

FI Throttle Body Mou

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$33.49

Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank straps meet or exceed the performance of the original equipment they replace.

Product Features:

Unit is designed to OE fit, form and function requirements accomplished by leveraging our expertise
Direct fit ensures safe, secure fuel tank installation
Product individually packaged and labeled to help reduce product damage prior to installation
Industry leading coverage on straps for plastic tanks

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$166.96

Hitachi fuel injectors are manufactured to OE requirements that meet federal emissions and fuel economy standards, and provide exact OE fit for ease of installation. Hitachi injectors are manufactured using internal components that are compatible with alternative fuels or fuel blends, including ethanol mixtures.

Product Features:

Original Equipment Manufacturer
Premium internal components
OE Calibrated impedance
Fine atomized spray reduces emissions

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$2.51

Fuel Injector Seal

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$23.99

Experience uncompromising quality and emissions compliance with these tethered fuel caps. Manufactured with top-tier materials and rigorous production and safety standards adhering to Original Equipment Manufacturer guidelines. Designed meticulously to meet both state and federal emissions requirements, it ensures environmental responsibility. With its specifically engineered pressure and vacuum relief valves, fuel evaporation becomes a thing of the past. Bid farewell to the risk of losing up to 30 gallons of precious gasoline over a year due to a leaking fuel cap. Trust in our superior construction to safeguard your fuel and contribute to a greener future.

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$6.99

Recommended for replacement whenever the sending unit is serviced, this fuel tank sending unit lock ring securely retains the fuel pump assembly to the lock. Made of durable materials for reliable service.

Product Features:

Direct replacement – this fuel tank sending unit lock ring is made to match the fit and performance of the original ring on specific vehicle applications.
Recommended for replacement whenever the sending unit is serviced, this fuel tank sending unit lock ring securely retains the fuel pump assembly to the lock.
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$4.29

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$308.80

DENSO a global supplier to automakers manufactures an OE-equivalent direct fit air fuel ratio sensor that maintains the quality and performance of the Original Equipment it replaces. DENSO continues to innovate with the latest development in air fuel ratio sensors. These components, also known as wide-band oxygen sensors, have a broader response range to provide much finer control of air/fuel mixtures over a greater variety of operating conditions.

Product Features:

Tarnish-proof platinum electrodes provides longer life and maintains accuracy
Quick-response planar zirconia element can quickly detect oxygen concentration
Measures A/F ratios from approximately 12:1 to 19:1
Increased performance by mapping a/f ratios throughout rpm range
Reduces emissions by keeping the air-fuel mixture at an optimum ratio

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$6.79

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

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$15.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

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$12.49

When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.

Product Features:

Helps avoid premature fuel pump failure
Lint free towel included
Low suds formulation
Removes harmful contaminants from the fuel tank

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$8.79

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

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$1.25

Fuel Injector O-Ring

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$87.99

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$149.99

Upgrade your 2003 Nissan Altima with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2003 Nissan Altima, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Nissan or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your Altima functioning at its best. At Advance Auto Parts, we offer a wide selection of 103 Fuel and Emissions Systems for the 2003 Nissan Altima, designed to meet your needs without breaking the bank. From Gas Cap replacements to Fuel Pumps upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Fuel and Emissions Systems for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Fuel and Emissions Systems for your 2003 Nissan Altima at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $1.25 to $420.51, with an average price of $95.52. Our 103 Fuel and Emissions Systems in stock come from 22 trusted brands, so you’re sure to find the right part for your 2003 Nissan Altima without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2003 Nissan Altima, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like FELPRO, Bosch, Carquest Premium, and more. FELPRO Fuel and Emissions Systems start at just $3.29 and boast an impressive 5 stars average rating from customers. Bosch and Carquest Premium also bring quality to the table, with Fuel and Emissions Systems available starting at $4.29, and at an average 5 stars rating. With 2,208 customer reviews and counting, our 2003 Nissan Altima Fuel and Emissions Systems have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Fuel and Emissions System upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2003 Nissan Altima is always ready to roll. We’re committed to providing you with everything you need to keep your Altima in top shape, all in one place. Start shopping confidently below for your 2003 Nissan Altima!

Best-Selling Gas Caps for 2003 Nissan Altimas

Enhance the driving experience in your Nissan with 7 quality Gas Cap components, starting at $14.29.

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$14.29

None

Product Features:

Protects your fuel from theft and vandalism
Manufactured from durable, long-life materials
Independently tested for emission control
Passes all state and federal emissions tests
Reduces air pollution with proper sealing and venting

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$17.79

Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:

Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$17.79

Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$24.99

Protects your fuel from theft and vandalism
Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$24.99

Protects your fuel from theft and vandalism
Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$25.99

Come pre-assembled for quick and easy installation.
Several fastener options to work with any fuel cap compartment configuration
Fits vehicles orginally equipped with tether
Reduces air pollution with proper sealing and venting
Manufactured from durable, long-life materials

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$17.49

Protects your fuel from theft and vandalism
Manufactured from durable, long-life materials
Independently tested for emission control
Passes all state and federal emissions tests
Reduces air pollution with proper sealing and venting

Most Popular 2003 Nissan Altima Fuel Pumps

Customize your Nissan with 8 Fuel Pumps products like Fuel Pumps and Fuel Cap Tester Adapters, all priced under $420.51.

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$159.99

Product Features:

All CARQUEST fuel pumps are designed to meet or exceed OE specs and are 100% tested to ensure performance and long-life.
High-efficiency turbine technology provides quiet and precise fuel delivery
Carbon commutator technology provides improved durability and robust performance for gasoline and flexible fuel
CARQUEST Fuel Pump has modified return porting to increase flow resulting in lower failure rates. Upgraded convoluted tubing improves durability to resist tube wear failure and create longer life.
CARQUEST strainer uses polyester material to ensure filtration performance meet or exceed OE requirements.

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$159.99

Carquest Premium fuel pump modules and assemblies are engineered by Carter Fuel Systems or Agility Auto Parts to meet or exceed Original Equipment (OE) specifications for fit, form and function. We have invested in industry-leading quality improvements like upgraded turbine impellers and 100% carbon commutators to deliver greater reliability. Carquest Premium fuel pump modules are supplied with the pump strainer and gaskets or seals when required for the application. Carquest Premium fuel pump modules are engineered with superior quality components to provide the longest life and reliable performance.

Product Features:

Meets or exceeds OE specifications for fit, form and function
100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
OE upgraded turbine impellers greatly reduce fuel pulsation
All fuel pumps are 100% performance tested
Includes installation gaskets or seals where applicable

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$219.99

100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part, comprehensive portfolio for a wide range of vehicles and model years.

Product Features:

Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
Empty float height and float retention matches OE specifications and guarantees correct gas gauge reading
Lower amperage draws less load on vehicle’s electrical system
Part is validated, tested and matched to the right vehicle application
Always be sure to check and clean fuel tank to avoid unnecessary returns
Lower failure rates due to its innovative design and durability

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$420.51

Benchmark quality from the worldwide leader in fuel injection technology. Bosch state-of-the-art turbine fuel pumps offer many advantages when compared to older roller-cell and inner-gear pump designs. These pumps offer near silent operation and improved drivability, the core components of this turbine design significantly reduce wear and deliver a longer service life. Bosch Turbine Fuel Pumps are nearly identical in dimension and appearance to the units they replace for a precise fit every time. Plus, application-specific, illustrated step-by-step instructions are included with all Bosch Turbine Fuel Pumps for safe and easy installation. To prevent hot start problems, Bosch includes a non-return valve that maintains system pressure long after the vehicle has been shut off.

Product Features:

OE-Equivalent Direct fit for easy installation.
OE connections and fittings.
Superior turbine pump design that virtually eliminates fuel pulsation.
Precision, spin-balanced armature to reduce noise and vibration.
Premium carbon brushes, utilizing advanced materials.
Noise suppression coil that eliminates radio frequency interference.
Illustrated step-by-step instructions are included.

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$355.96

OE-Equivalent Direct fit for easy installation.
OE connections and fittings.
Superior turbine pump design that virtually eliminates fuel pulsation.
Precision, spin-balanced armature to reduce noise and vibration.
Premium carbon brushes, utilizing advanced materials.
Noise suppression coil that eliminates radio frequency interference.
Illustrated step-by-step instructions are included.

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$291.56

Fuel modules are designed to provide uninterrupted flow of fuel to the engine at system pressure. Depending on customer needs, the Delphi Series 7000 Fuel Module can integrate a pump, fuel level sensor, fuel filter, reservoir with active and passive filling mechanisms, and regulator in a compact, modular package that is easy to install. The Delphi Series 7000 Fuel Module also offers an in-tank fuel filter with 10-12 µm filtration. The Delphi Series 7000 Fuel Module provides superior low fuel handling and fuel level sensing performance with its enhanced bottom reference design. It also offers reduced noise levels and improved pump durability compared to conventional fuel modules. The simplicity of design also results in lower cost. This module is targeted to meet California ZEV requirements.

Product Features:

Acetal cover can accommodate 116mm tank opening to permit integrated filter in reservoir
Single stage turbine pump provides quiet, energy efficient operation
Active reservoir-fill mechanism (high pressure jet pump) to maintain fuel supply in reservoir
Passive reservoir fill mechanism helps fill the reservoir at low-fuel volumes
High capacity filter media helps supply clean fuel to the injection system
Available serviceable in-tank fuel filter for markets with poor quality fuels

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$285.99

Every single pump is 100% tested throughout the entire manufacturing process for worry free, out-of-the-box performance
Triple barb hose fitting provides superior, long-lasting seal
Superior return porting for optimum fuel flow
Enhanced pump to flange harness design provides worry-free electrical performance
Ceramic sender card and float arm that utilizes vehicle-specific geometry to ensure accurate fuel gauge readings for each and every application
Gradient density, dual zone filtration designed for better contamination resistance

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$39.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

Top Picks for 2003 Nissan Altima Oxygen Sensors

Upgrade Nissan Altimas with top-quality Oxygen Sensors parts, including 25 OEM and aftermarket selections for your 2003 model.

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$75.99

NTK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:

OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

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$54.99

OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

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$69.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Includes Smart Link Connector, no soldering required
No special tools required for installation
Seared protection tube due to 100% functional quality test
Performance meets or exceeds OE specifications

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$80.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Includes Smart Link Connector, no soldering required
No special tools required for installation
Seared protection tube due to 100% functional quality test
Performance meets or exceeds OE specifications

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$77.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Includes Smart Link Connector, no soldering required
No special tools required for installation
Seared protection tube due to 100% functional quality test
Performance meets or exceeds OE specifications

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$80.99

DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision built for exact replacement, and a first time fit. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit, the first time.

Product Features:

Specifically designed to meet the increasing demands of today’s engines
100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination

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$80.99

Specifically designed to meet the increasing demands of today’s engines
100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination

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$79.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Includes Smart Link Connector, no soldering required
No special tools required for installation
Seared protection tube due to 100% functional quality test
Performance meets or exceeds OE specifications

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$120.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Direct Fit includes OE Connector for easy installation
Performance meets or exceeds OE specifications
True Direct-fit OE connectors and harness

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$89.17

Denso First Time Fit oxygen sensors are constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor.

Product Features:

SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.

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$71.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Direct Fit includes OE Connector for easy installation
Performance meets or exceeds OE specifications
True Direct-fit OE connectors and harness

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$43.49

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Direct Fit includes OE Connector for easy installation
Performance meets or exceeds OE specifications
True Direct-fit OE connectors and harness

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$190.70

SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.

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$233.36

NTK is the world’s largest supplier and manufacturer of original equipment oxygen sensors. NTK oxygen sensors meet or exceed original equipment specifications and are equipped with waterproof factory fitted connectors to ensure a perfect fit every time. Every NTK oxygen sensor is individually tested to ensure the highest level of quality and reliability.

Product Features:

OE-Equivalent.
Direct fit for easy installation.
Extensively Tested During Manufacture to Guarantee Quality and Reliability
Supplied With a Factory-Fitted OEM Connector for Easy Installation

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$201.07

OE-Equivalent.
Direct fit for easy installation.
Extensively Tested During Manufacture to Guarantee Quality and Reliability
Supplied With a Factory-Fitted OEM Connector for Easy Installation

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$161.99

OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

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$132.99

Specifically designed to meet the increasing demands of today’s engines
100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination

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$131.99

Specifically designed to meet the increasing demands of today’s engines
100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination

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$125.99

OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

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$103.44

The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.

Product Features:

OE-Equivalent.
Direct fit for easy installation.
OE Style connectors and wire lengths.
Base ceramic probe of Zirconium and Yttrium.
Patented Platinum Power Grid.

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$99.99

Specifically designed to meet the increasing demands of today’s engines
100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination

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$91.99

OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

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$88.99

Specifically designed to meet the increasing demands of today’s engines
100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination

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$82.99

Specifically designed to meet the increasing demands of today’s engines
100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination

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$68.30

Oxygen Sensor

In-Demand Air Flow Sensors for 2003 Nissan Altimas

Select from 13 premium Air Flow Sensors parts for your 2003 Nissan Altima, with prices ranging from $16.79 to $173.75.

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from

$107.32

OE-Equivalent.
Direct fit for easy installation.
OE Style connectors and wire lengths.
Base ceramic probe of Zirconium and Yttrium.
Patented Platinum Power Grid.

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$16.79

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

from

$36.50

Ambient Temp Sensor

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$167.03

OE-Equivalent.
Direct fit for easy installation.
OE Style connectors and wire lengths.
Base ceramic probe of Zirconium and Yttrium.
Patented Platinum Power Grid.

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$173.75

OE-Equivalent.
Direct fit for easy installation.
OE Style connectors and wire lengths.
Base ceramic probe of Zirconium and Yttrium.
Patented Platinum Power Grid.

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$157.17

Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specification and test requirements.

Product Features:

Improved Engine Response and Performance
Lower Emissions
Improved Fuel Economy
Longer Sensor Life
Meets OEM Specifications Installation Notes: Vehicles equipped with Air Fuel Ratio Sensors may look very similar to the Oxygen Sensor. Please confirm the correct part before ordering and if the connector does not match, do not install

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$123.36

SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.

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$106.11

OE-Equivalent.
Direct fit for easy installation.
Extensively Tested During Manufacture to Guarantee Quality and Reliability
Supplied With a Factory-Fitted OEM Connector for Easy Installation

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$98.97

Oxygen Sensor

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$96.06

Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specification and test requirements.

Product Features:

Improved Engine Response and Performance
Lower Emissions
Improved Fuel Economy
Longer Sensor Life
Meets OEM Specifications Installation Notes: Vehicles equipped with Air Fuel Ratio Sensors may look very similar to the Oxygen Sensor. Please confirm the correct part before ordering and if the connector does not match, do not install

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$74.36

OE-Equivalent.
Direct fit for easy installation.
Extensively Tested During Manufacture to Guarantee Quality and Reliability
Supplied With a Factory-Fitted OEM Connector for Easy Installation

from

$69.52

Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specification and test requirements.

Product Features:

Improved Engine Response and Performance
Lower Emissions
Improved Fuel Economy
Longer Sensor Life
Meets OEM Specifications Installation Notes: Vehicles equipped with Air Fuel Ratio Sensors may look very similar to the Oxygen Sensor. Please confirm the correct part before ordering and if the connector does not match, do not install

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$43.99

CARQUEST premium engine management products provide the right automatic transmission speed sensor for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions. Designed to meet OE quali

Product Features:

Lifecycle tested to meet or exceed OE specifications
Direct OE replacement
High strength thermoplastic is resistant to shock, temperature and chemicals. Also protects internal components from moisture and contaminants.
Global coverage for import and/or domestic applications.

Most Sold 2003 Nissan Altima Fuel Injectors

Explore our best-selling Nissan parts for the 2003 Altima among 34 OEM and aftermarket options starting from $1.25.

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$34.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

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$3.29

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$7.49

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$139.99

Hitachis Air Flow Sensors (MAFs) measure the amount and characteristics of air entering the engine. Hitachi uses precision elements and high-quality components for enhanced durability and accurate air flow measurements. Hitachi MAFs are 100% air flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the manufacturer. Details such as a contaminant bypass port (when applicable) and protected circuitry providing a durable and reliable product approved by OE manufacturers makes Hitachis air flow sensors the premium choice.

Product Features:

Hitachi is a Tier 1 OE supplier for air flow sensors
100% NEW, never remanufactured
Hitachi’s advanced precision elements and high quality components provide enhanced durability. We feature exact fitment and calibration for each vehicle, which assists engine efficiency and fuel mileage. Our sensors are 100% air flow tested to meet exac
Precision manufactured and assembled sensing elements for accurate air flow measurements

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$4.29

High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:

Designed to OE standards for ease of installation
All electrical connectors are 100% tested for proper mechanical and electrical fit, form and function
Offering thousands of high-quality pigtails & sockets for nearly every electrical job

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$135.99

Advance Auto Parts is proud to carry all new mass air flow sensors that use high-quality components with the highest quality standards.

Product Features:

CARQUEST MAF use all new high-quality components at the highest quality standards.
Manufactured with new and advanced technology to perform, fit and function at OE specifications.
All new product that is tested with OEM equipment to OEM standards
Outperforms competition when tested in extreme environmental conditions

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$9.99

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$8.29

CARQUEST fuel injector seal kits include the necessary O-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.

Product Features:

Premium OE quality materials
Services one injector

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$10.29

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$48.49

CARQUEST’S line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function. Each injector includes new external seals and O-rings.

Product Features:

Each unit is 100% tested to OE specifications
Includes new O-rings and seals made of premium OE quality materials
Includes application specific technical bulletin, where applicable

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$139.99

Advance Auto Parts is proud to carry all new mass air flow sensors that use high-quality components with the highest quality standards.

Product Features:

CARQUEST MAF use all new high-quality components at the highest quality standards.
Manufactured with new and advanced technology to perform, fit and function at OE specifications.
All new product that is tested with OEM equipment to OEM standards
Outperforms competition when tested in extreme environmental conditions

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$87.05

High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:

Designed to OE standards for ease of installation
Precision-wound and precision-trimmed solenoid windings allow the computer to command efficient delivery of fuel
High-temp Viton® O-rings enable prolonged sealing of injector under extreme heat conditions
Fiber-optic yttrium aluminum garnet “YAG” laser welding and 100 million cycle testing ensure quality in every box

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$8.99

High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:

Designed to OE standards for ease of installation
High-quality materials withstand extreme conditions
Undergoes extensive testing to ensure reliability
As a global manufacturer of automotive aftermarket products, we maintain complete quality control throughout the manufacturing process

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$27.49

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$4.29

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$181.99

100% new; Delphi OE Technology Validated to match the vehicle applications; Manufactured to meet or exceed OE requirements

Product Features:

Delphi mass air flow sensors are the global benchmark for accuracy and signal noise
Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
All parts are calibrated and tested to match the OE part
Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube.
Delphi OE technology validated to match the vehicle applications

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$341.67

Bosch air mass sensors are built to exacting specifications as required for such a sensitive measuring device. Through a precise manufacturing process, the correct type and thickness of platinum wire or thick film ceramic measuring elements are selected and accurately calibrated to provide optimum performance.

Product Features:

OEM Quality Direct fit Application
Measurement of air mass (gas mass) through-flow per unit of time, independent of density and temperature
Extensive measuring range
Highly sensitive, particularly for small changes in flow rate
Wear-free since there are no moving parts
Insensitive to dirt and contamination
Utilizes the factory style mounts, connectors and fittings
Provides exceptional reliability

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$243.99

CARDONE Remanufactured Mass Air Flow Sensors (MAFS) precisely track O.E. output curves and maintain specific tolerances to ensure accurate scan tool readings for proper operation. 100% re-soldering of critical components ensures superior electrical connections, eliminates int ermittent failures and lengthens product life. With CARDONE Mass Air Flow Sensors (MAFS), you can expect smooth vehicle performance.

Product Features:

100% re-solder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
All modules are 100% tested with automated computer test equipment to ensure full functionality and reliability.
Our sensors precisely track O.E. output curves and maintain spec tolerances to ensure accurate feedback to the vehicle¿s engine control management system.
Our sensors precisely track O.E. output curves and maintain spec tolerances to ensure accurate feedback to the vehicle┐s engine control management system.
Components are rated to handle demanding temperature variations for optimum reliability in every environment.
As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80%.

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$213.99

100% new; Delphi OE Technology Validated to match the vehicle applications; Manufactured to meet or exceed OE requirements

Product Features:

Delphi mass air flow sensors are the global benchmark for accuracy and signal noise
Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
All parts are calibrated and tested to match the OE part
Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube.
Delphi OE technology validated to match the vehicle applications

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$166.96

Original Equipment Manufacturer
Premium internal components
OE Calibrated impedance
Fine atomized spray reduces emissions

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$159.99

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$133.99

Hitachi’s Fuel Injectors (FIJs) are designed to optimize fuel economy and performance by providing extraordinary accuracy and application specific spray patterns with quick response times. Hitachi’s high-speed electromagnet and pintle precisely control the flow of fuel. High quality materials ensure that even under the most extreme conditions, Hitachi’s FIJs will not deform or malfunction. Our FIJs are 100% flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the OE manufacturer. Designed to meet the exact needs of each specific vehicle, Hitachi’s Fuel Injectors are the premium choice. Hitachi is a Tier One OE supplier to the largest automobile manufacturers globally, delivering industry leading quality, and exceeding customer expectations with our products and service. Hitachi is bringing that same knowledge and expertise to the premium products we deliver in the Aftermarket because Quality Matters.

Product Features:

Hitachi is a Tier 1 OE supplier for fuel injectors
100% NEW, never remanufactured
Meets the OE performance and durability standards for this application
100% flow tested for ideal performance
High-speed electromagnet and pintle for precise fuel dispersion
Application specific spray patterns for optimized fuel efficiency and performance
O-Ring included when applicable

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$45.99

Each unit is 100% tested to OE specifications
Includes new O-rings and seals made of premium OE quality materials
Includes application specific technical bulletin, where applicable

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$22.49

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

from

$11.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

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$8.79

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

from

$4.29

from

$3.29

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

from

$2.66

FI Throttle Body Mou

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$2.30

Fuel Injector O-Ring

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$2.20

Throttle Body Gasket

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$2.09

FI Throttle Body Mou

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$2.01

Fuel Injector O-Ring

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$1.25

Fuel Injector O-Ring

Top-Rated Fuel and Emissions Systems Brands For Your 2003 Nissan Altima

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2003 Nissan Altimas. Below you’ll find some of our best rated Fuel and Emissions Systems from FELPRO, Bosch, and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2003 Altima start at just $3.29 and are rated as high as 5 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.

Popular FELPRO 2003 Nissan Altima Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2003 Nissan Altima, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Fuel and Emissions Systems, specifically designed for the 2003 Nissan Altima. With over 6 FELPRO brand Fuel and Emissions Systems in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $3.29, with an average price of just $11.47. Plus, with over 139 customer reviews and an average rating of 5 stars, you can trust that our FELPRO Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

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$4.29

This product is not rated

Fuel Injection Throttle Body Mounting Gasket

“”

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$34.99

(24)

Fuel Injection Plenum Gasket Set

“Quality gasket”

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$11.99

This product is not rated

Fuel Injection Plenum Gasket Set

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Popular Bosch 2003 Nissan Altima Fuel and Emissions Systems

Bosch auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2003 Nissan Altima owner should feel confident when installing genuine Bosch parts in their vehicle. To ensure the best fit and performance for your 2003 Altima, Advance Auto Parts carries a full inventory of 14 Bosch Fuel and Emissions Systems. Plus you will be keeping your Nissan in peak condition while saving money because prices on these Bosch Fuel and Emissions Systems range from $43.49 to $420.51, plus, with more than 240 customer reviews and an impressive 5 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.

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$71.99

This product is not rated

Oxygen Sensor: 4 Wire, 10.63" Long, Heated, Exact Fit

“”

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$79.99

This product is not rated

Oxygen Sensor: 3 Wire, 28.54" Long, Heated, Universal

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$120.99

This product is not rated

Oxygen Sensor: 3 Wire, 14.76" Long, Heated, Exact Fit

“”

FAQs for 2003 Nissan Altima Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2003 Nissan Altimas?

Out of 103 Fuel and Emissions Systems that fit 2003 Nissan Altimas, the following parts are the top sellers:

Fuel Injector O-Ring Kit (3504360) – $7.49
Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (18730541) – $80.99
Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal (19370039) – $77.99

What’s the price range for 2003 Nissan Altima Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2003 Nissan Altima start at $1.25 and go up to $420.51 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2003 Nissan Altima?

The average price for Fuel and Emissions Systems for the 2003 Nissan Altima is $95.52. Keep in mind the variety of part types within our Fuel and Emissions System category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Fuel and Emissions Systems for other Nissan Altima model years?

Yes, we currently carry Fuel and Emissions Systems for 31 model years of Nissan Altimas between 1993 and 2024. Fuel and Emissions Systems are bought most frequently for the following model years: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Fuel and Emissions Systems for my 2003 Nissan Altima?

The cheapest 2003 Nissan Altima Fuel and Emissions Systems we carry in stock are:

Fuel Injector O-Ring (10740395) – $1.25
Fuel Rail Insulator (10740521) – $1.85
Fuel Injector O-Ring (11844929) – $2.01
FI Throttle Body Mou (11913074) – $2.09
Throttle Body Gasket (10746975) – $2.20

What are the top-rated Fuel and Emissions Systems that fit the 2003 Nissan Altima?

Out of 2,208 reviews by customers, our 2003 Nissan Altima Fuel and Emissions Systems have an average customer rating of . These are some of the highest-rated Fuel and Emissions System types for the 2003 Nissan Altima and their top-rated products:

Oxygen Sensors
- Switching Oxygen Sensor: 4 Wire, 18.5" Long, Heated, Direct Fit (20501548) – $54.99
- Switching Oxygen Sensor: 4 Wire, 14.75" Long, Heated, Direct Fit (20501542) – $75.99
- Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Exact Fit (19370065) – $69.99
Air Flow Sensors
- Switching Oxygen Sensor: 4 Wire, 18.5" Long, Heated, Direct Fit (20501548) – $54.99
- Switching Oxygen Sensor: 4 Wire, 14.75" Long, Heated, Direct Fit (20501542) – $75.99
- Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Exact Fit (19370065) – $69.99

What types of Fuel and Emissions Systems do you sell for my 2003 Nissan Altima?

As of 2/5/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2003 Nissan Altima:

Can I get help with 2003 Nissan Altima Fuel and Emissions System orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Nissan Fuel and Emissions Systems and more.

What is your return policy for Nissan Altima Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Nissan Altima Fuel and Emissions Systems and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2003 Nissan Altima Fuel and Emissions Systems

Spectra Premium – Fuel Pump Module Assembly (Part No.SP4008M)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1132)

Wells Vehicle Electronics – Fuel Injection Pressure Damper (Part No.3G1061)

Carquest Premium – Vapor Canister Vent Solenoid (Part No.CPC1008)

Ishino – Fuel Rail Insulator (Part No.C1008251685ISH)

Spectra Premium – Fuel Filler Neck (Part No.FN604)

Delphi – Air Mass Sensor (Part No.B3150102934DEL)

ACDelco – Multi-Purpose Wire Connector with Leads (Part No.PT2164)

Gates – Breather Hose (Part No.B2010375753GAT)

ACDelco – Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with 2 O-Rings (Part No.217-3366)

Bosch – Oxygen Sensor: 4 Wire, 11.22" Long, Heated, Exact Fit (Part No.16161)

Carquest Premium – Vapor Canister (Part No.CPN1965)

Mahle – FI Throttle Body Mou (Part No.C7001455123MAH)

Spectra Premium – Fuel Tank Strap (Part No.ST249)

Hitachi – Hitachi Fuel Injector (Part No.C1000251322HIT)

Elring – Fuel Injector Seal (Part No.C1010681908ELR)

Motorad – Tethered Gas Cap: Non-Locking, Original Equipment Manufacturer, Reduces Air Pollution, 1 Pack (Part No.MGC817T)

Dorman – Fuel Tank Lock Ring (Part No.579-010)

Carquest Premium – Fuel Injector Connector (Part No.PTA1064)

DENSO – First Time Fit Air Fuel Ratio Sensor (Part No.C5015566602ND)

Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.70893)

Carquest Premium – Fuel Cap Tester Adapter (Part No.12410)

Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Victor Reinz – Fuel Injector O-Ring Kit (Part No.18-10027-01)

Ishino – Fuel Injector O-Ring (Part No.C101245500ISH)

Carquest Premium – Vapor Canister Purge Solenoid (Part No.CPC1055)

Carquest Premium – Exhaust Gas Recirculation (EGR) Vacuum Regulator Solenoid Connector (Part No.PTA2918)

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17508)

Carquest Premium – Fuel Cap: 10838, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10838)

Carquest Premium – Fuel Cap (Part No.10842)

Carquest Premium – Locking Fuel Cap: 10508, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10508)

Carquest Premium – Locking Fuel Cap: 10512, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10512)

Motorad – Tethered Fuel Cap (Part No.MGC837T)

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17512)

Carquest Premium – Fuel Pump Module Assembly (Part No.E8496M)

Carquest Premium – Fuel Pump Module Assembly: Fuel Pump, Sending Unit and Strainer (Part No.M2425954)

Delphi – Fuel Pump Module Assembly: With Float Arm (Part No.FG0501)

Bosch – Turbine Electric Fuel Pump Assembly (Part No.E3001329837BOS)

Bosch – Turbine Electric Fuel Pump Assembly (Part No.E3001325537BOS)

Delphi – Series 7000 Fuel Module (Part No.E30011230715DEL)

Spectra Premium – Fuel Pump Module Assembly (Part No.SP4008M)

Carquest Premium – Fuel Cap Tester Adapter (Part No.12422)

NTK – Switching Oxygen Sensor: 4 Wire, 14.75" Long, Heated, Direct Fit (Part No.24298)

NTK – Switching Oxygen Sensor: 4 Wire, 18.5" Long, Heated, Direct Fit (Part No.24407)

Bosch – Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Exact Fit (Part No.15727)

Bosch – Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (Part No.15733)

Bosch – Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal (Part No.15730)

DENSO – Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-4700)

DENSO – Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-4210)

Bosch – Oxygen Sensor: 3 Wire, 28.54" Long, Heated, Universal (Part No.15735)

Bosch – Oxygen Sensor: 3 Wire, 14.76" Long, Heated, Exact Fit (Part No.13968)

DENSO – First Time Fit Oxygen Sensor (Part No.C5010457689ND)

Bosch – Oxygen Sensor: 4 Wire, 10.63" Long, Heated, Exact Fit (Part No.15949)

Bosch – Oxygen Sensor: 4 Wire, 18.11" Long, Heated, Exact Fit (Part No.15518)

DENSO – First Time Fit Oxygen Sensor (Part No.C5010340374ND)

NTK – NTK Oxygen Sensor (Part No.C5010381301NTK)

NTK – NTK Oxygen Sensor (Part No.C5010324698NTK)

NTK – Switching Oxygen Sensor: 3 Wire, 19.75" Long, Heated, Direct Fit (Part No.24618)

DENSO – Oxygen Sensor: Downstream, 4 Wire, 14.57" Long, Heated, Exact Fit (Part No.234-4273)

DENSO – Oxygen Sensor: Upstream, 3 Wire, 15.35" Long, Heated, Exact Fit (Part No.234-3113)

NTK – Switching Oxygen Sensor: 4 Wire, 14.25" Long, Heated, Direct Fit (Part No.24646)

Bosch – Oxygen Sensor (Part No.C5010149576BOS)

DENSO – Oxygen Sensor: Downstream, 4 Wire, 10.63" Long, Heated, Exact Fit (Part No.234-4775)

NTK – Switching Oxygen Sensor: 4 Wire, 14.25" Long, Heated, Direct Fit (Part No.24641)

DENSO – Oxygen Sensor: Upstream, 4 Wire, 14.57" Long, Heated, Exact Fit (Part No.234-4296)

DENSO – Oxygen Sensor: 3 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-3090)

DENSO – Oxygen Sensor (Part No.C5010690208ND)

Bosch – Bosch Oxygen Sensor (Part No.C5010149927BOS)

ACDelco – Multi-Purpose Wire Connector with Leads (Part No.PT2164)

Niles – Ambient Temp Sensor (Part No.P4025778656NIL)

Bosch – Oxygen Sensor (Part No.C5010112937BOS)

Bosch – Oxygen Sensor (Part No.C5010143772BOS)

Walker – Walker Oxygen Sensor (Part No.C5010380753WKR)

DENSO – First Time Fit Oxygen Sensor (Part No.C5010270631ND)

NTK – NTK Oxygen Sensor (Part No.C5010379972NTK)

DENSO – Oxygen Sensor (Part No.C5010690199ND)

Walker – Walker Oxygen Sensor (Part No.C5010402502WKR)

NTK – NTK Oxygen Sensor (Part No.C5010376774NTK)

Walker – Walker Oxygen Sensor (Part No.C5010380800WKR)