2003 Jeep Grand Cherokee Fuel and Emissions Systems

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

Popular 2003 Jeep Grand Cherokee Fuel and Emissions Systems Categories

Fuel Tank Cleaning Kits

MAP-Barometric Pressures

Vapor Canister Vent Valves

Manifold Air Pressure Sensors

Canister Purge Solenoids

Fuel Injectors

Idle Air Parts

Air Charge Temperature Sensors

Fuel Injection Idle Air Control Valves

Ambient Air Temperature Sensors

Fuel Injector O-Ring Kits

Electric Pump Filter and Strainers

Fuel Injector Seal Kits

Fuel Tank Straps

Fuel Injector Gaskets

Fuel Tank Filler Necks

Fuel Injector Connectors

Evaporative Emissions System Detection Pump Filters

Fuel Injector Clips

Crankcase Breather Hoses

Fuel Pump Harness Connectors

Fuel Injector Set

Fuel Cap Tester Adapters

Essential Fuel and Emissions Systems for 2003 Jeep Grand Cherokees

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$32.99

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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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$34.99

Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.

Product Features:

Insulated with silicone gel over the integrated circuit chip to protect against shock and vibration for increased durability
Internally protected against moisture intrusion and vibration
Long lasting and durable
Designed and engineered with Delphi expertise

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$84.99

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

Thread In
OE Style
Direct Fit

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$50.99

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
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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$67.99

CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.

Product Features:

CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.

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$84.99

Maximize your vehicle’s efficiency and emissions control with Carquest Vapor Canister Purge Solenoids. Engineered for precision, these solenoids seamlessly regulate the flow of fuel vapors from the Vapor Canister to the engine for cleaner combustion, reducing harmful emissions. Built to meet and/or exceed OEM standards, Carquest Purge Solenoids offer reliable functionality, long-lasting durability, and easy installation.

Product Features:

Enhances overall engine performance by providing proper vapor flow to maintain correct air-fuel mixture.
Helps reduce harmful emissions and ensures compliance with environmental regulations by controlling the release of fuel vapors into the engine
Ensures precise operation with electromagnetic principles to control the flow of fuel vapors from the carbon canister to the engine
Manufactured from high quality engineered materials, resistant to fuel vapors and extreme temperatures, ensuring long lasting performance
Meets or exceeds all OEM specifications

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$77.99

Carquest Premium idle air control valves are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Idle air control valves, or sometimes known as idle air motors, are used to maintain the engine speed at idle by precisely adjusting the amount of air allowed to enter the intake. Our Carquest Premium idle air control (IAC) valves are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium idle air control valves undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium idle air control valves are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Designed to meet or exceed OE specifications for fit, form and function
Precision engineering and robust design to withstand harsh under hood environment
Gaskets or seals are included if required for installation
Extensive design validation testing and 100% end-of-line tested
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$45.99

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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$22.99

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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$180.99

Fuel filler neck leaking? This replacement fuel filler neck is precision-engineered and thoroughly tested to match the original filler neck for specific vehicle years, makes and models for a reliable repair.

Product Features:

Direct replacement – this fuel filler neck is made to match the original equipment on specific vehicles
Durable construction – made of corrosion-resistant materials to reduce future failure potential
Regulatory compliant – built to meet emission and inspection standards
Trustworthy value – backed by team of engineers and quality control experts in the United States

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$120.99

Carquest Premium electric fuel pumps are engineered by Carter Fuel Systems or Agility Auto Parts to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our Carquest Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. Carquest Premium electric fuel pumps 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

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$274.99

Crown Automotive continues to be the leader in quality replacement parts for Jeep(R) vehicles. Crown has the largest stock of replacement parts for Jeep(R) vehicles, including factory discontinued parts. In fact, many of the older Jeeps are still on (and off) the road thanks to Crown parts. The Crown line consists of axle, body, brake, clutch, cooling, driveline, electrical, engine, exhaust, fuel, steering, suspension, transmission And transfer case components. Crown Automotive also offers an exclusive line of component kits And accessory products.

Product Features:

Stainless Steel Construction
Meets Standards For Quality
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Easy Installation

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$9.99

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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$9.99

Crown Automotive offers the largest line of replacement parts for Jeep (R), as well as a growing line of parts for Chrysler and Dodge vehicles. Our applications features Axle, Body, Brake, Clutch, Cooling, Electrical, Engine, Fuel, Lamps, Mirrors, Steering, Suspension, Transmission and Wiper.

Product Features:

Crown Automotive Fuel Injector Clips Are Made To Meet Or Exceed OEM Specifications
Quality Direct Replacement Parts
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
Long-Lasting, Durable Crown Automotive Products

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$39.99

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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$37.99

Manufactured From High Quality Material
Engineered To The Specifications
Meets The Quality Standards
Designed For Performance And Durability
Easy To Install

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$29.99

Evaporative Emissions System Leak Detection Pump Filter

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$5.99

Manufactured From High Quality Material
Engineered To The Specifications
Meets The Quality Standards
Designed For Performance And Durability
Easy To Install

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$13.99

CARQUEST Premium electric fuel pumps are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our CARQUEST Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. CARQUEST Premium electric fuel pumps 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

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$77.99

Long-Lasting, Durable Crown Automotive Products
Offers OE Fit And Function
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
Easy To Install

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$186.99

Has your Jeep failed an emission inspection? Do you have a Check Engine light on? Over time oxygen sensors will go bad. They are usually easy to replace and will keep you on the road legally.

Product Features:

Before Cat
OE Style
Direct Fit

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$26.99

The temperature of various systems must be reported to the engine control module (ECM) as well as other operating system controllers in the vehicle. Coolant temperature, cabin temperature, exhaust temperature and ambient temperature are just a few systems reported by a temperature sensor. The temperature sensor is fed 5 volts by the systems computer, within the sensor housing will be a thermistor, or dropping resistor whose resistance value will change as the temperature surrounding it changes. Changing resistance in the circuit will change the volt signal at the processor indicating the current operating value.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

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$11.79

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

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$34.99

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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$66.99

Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:

Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
Product constructed to meet all design and operating characteristics as intended by the manufacturer.
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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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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$294.99

The Carquest line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA. Injectors are thoroughly 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.

Product Features:

Includes six premium fuel injectors
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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$409.99

Includes eight premium fuel injectors
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

Upgrade your 2003 Jeep Grand Cherokee with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2003 Jeep Grand Cherokee, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Jeep or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your Grand Cherokee functioning at its best. At Advance Auto Parts, we offer a wide selection of 86 Fuel and Emissions Systems for the 2003 Jeep Grand Cherokee, designed to meet your needs without breaking the bank. From Air Flow Sensor replacements to Gas Caps 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 Jeep Grand Cherokee at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $2.99 to $294.99, with an average price of $60.56. Our 86 Fuel and Emissions Systems in stock come from 16 trusted brands, so you’re sure to find the right part for your 2003 Jeep Grand Cherokee 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 Jeep Grand Cherokee, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like DENSO, NTK, Carquest Premium, and more. DENSO Fuel and Emissions Systems start at just $56.99 and boast an impressive 4.6 stars average rating from customers. NTK and Carquest Premium also bring quality to the table, with Fuel and Emissions Systems available starting at $8.99, and at an average 4.6 stars rating. With 5,027 customer reviews and counting, our 2003 Jeep Grand Cherokee 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 Jeep Grand Cherokee is always ready to roll. We’re committed to providing you with everything you need to keep your Grand Cherokee in top shape, all in one place. Start shopping confidently below for your 2003 Jeep Grand Cherokee!

Best-Selling Air Flow Sensors for 2003 Jeep Grand Cherokees

Enhance the driving experience in your Jeep with 15 quality Air Flow Sensor components, starting at $15.99.

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$139.99

Building upon a foundation of premium full-line products established under NGK ignition and oxygen sensor products, NTK’s expansion to technical sensors is part of our ongoing commitment to streamline product types and increase coverage under one premium brand NTK, The Sensor Specialist. With over 80 years of automotive expertise, NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. is the only OE supplier with a full line of technical sensors in the aftermarket for import and domestic vehicles. Drawing from OE experience, sensors undergo extreme testing conditions that include thermal shock, vibration and OBD verification. sensors are manufactured to ensure a quality that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:

The Manifold Absolute Pressure Sensor (MAP) provides manifold pressure information to the Engine Control Unit (ECU). The data is used to determine the air mass flow rate and required fuel for optimum combustion and ignition timing.
NTK’s Manifold Absolute Pressure Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper manifold pressure, fuel metering and ignition timing.

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$27.99

The Ambient Air Temperature Sensor measures outside air temperature and is used by the heating and cooling control system, along with other vehicle cabin sensors, to control temperature and blower speed.
NTK’s Ambient Air Temperature Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper reading of outside air temperature.

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$85.99

CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.

Product Features:

CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.

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$27.99

The Air Charge Temperature Sensor is used by the Engine Control Unit (ECU) to measure air density for fuel mixture control, which allows it to make continuous adjustments to the engine’s air or fuel mixture for maximum fuel efficiency.
NTK’s Air Charge Temperature Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper monitoring of air temperature entering the engine.

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$82.99

CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.

Product Features:

CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.

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$26.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

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$97.99

The Manifold Absolute Pressure Sensor (MAP) provides manifold pressure information to the Engine Control Unit (ECU). The data is used to determine the air mass flow rate and required fuel for optimum combustion and ignition timing.
NTK’s Manifold Absolute Pressure Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper manifold pressure, fuel metering and ignition timing.

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$24.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

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$46.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

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$124.99

Insulated with silicone gel over the integrated circuit chip to protect against shock and vibration for increased durability
Internally protected against moisture intrusion and vibration
Long lasting and durable
Designed and engineered with Delphi expertise

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$242.99

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

Plastic
OE Style
Direct Fit

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$92.99

MAP Sensors Restore Data Transmission To Regulate Timing Control And Fuel Delivery
Offers OE Fit And Function
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Leading Manufacturer Of Quality Replacement Parts

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$84.99

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

Thread In
OE Style
Direct Fit

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$81.99

Insulated with silicone gel over the integrated circuit chip to protect against shock and vibration for increased durability
Internally protected against moisture intrusion and vibration
Long lasting and durable
Designed and engineered with Delphi expertise

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$15.99

Hazardous Free Material
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Designed And Built To OEM Specs
Easy To Install

Top Picks for 2003 Jeep Grand Cherokee Fuel Pumps

Upgrade Jeep Grand Cherokees with top-quality Fuel Pumps parts, including 11 OEM and aftermarket selections for your 2003 model.

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$8.99

Carquest gradient density fuel pump strainers deliver reliable filtration and are the first line of defense against fuel system contaminants.

Product Features:

Gradient density provides optimum multi-depth layering of filter media specific for each application
Maximum filtering for increased fuel filter, fuel pump and fuel system life
New strainer required to validate new fuel pump warranty.

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$159.99

Please note: Advance Auto Parts is proud to carry comparable exact-fit parts from multiple vendors, as such, the item you receive may be one of two quality brands. Both brands meet the same fitment requirements and are equal in their performance and specifications. Carquest or Airtex 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 or Airtex Fuel Pump to deliver greater reliability.

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 features external rubber feet for enhanced stability and reduced noise from vibration.
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.

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$163.99

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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$253.99

Delphi is a Tier 1 supplier to the majority of global vehicle manufacturers and has been a manufacturer of dependable fuel pumps and fuel delivery parts for over 80 years. With over 30 OE-proprietary innovations and 150 patents in fuel technologies, Delphi is regarded as a market leader in North American fuel management with sales coverage at over 95%. Learn more about our expert-led training programs and tech hotline at 1-877-463-3574. 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:

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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$120.99

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

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$9.99

Filtration performance and micron rating meet or exceed OE requirements
OE replacement strainer designed for use with Delphi electric fuel pumps
Replacing the strainer is always recommended when replacing a fuel pump

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$11.99

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

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$131.99

Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
Delphi pumps are designed to operate under extreme temperatures with quick engine starts and to avoid low-fuel hesitation, including alcohol fuels and blends
Improved pump performance as a result of Delphi’s innovative design and durability
Restores fast pressure performance and system integrity, translating to better pumping through less energy
Part is validated, tested and matched to the right vehicle application
Lower amperage draws less load on vehicle’s electrical system
Always be sure to check and clean fuel tank to avoid unnecessary returns
Always replace the fuel strainer when doing a fuel pump repair

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$76.99

New Platinum Pro Electric Fuel Pump, New Strainer Required For Warranty

Product Features:

Meets All Federal Motor Safety Standards
No Drilling Needed For Installation
No Modifications Needed For Installation
Direct Fit Replacement For Your Vehicle
Same Form Fit And Function As OE
Check Out The Large Selection Of Parts Available For Your Vehicle

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$66.99

Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
Product constructed to meet all design and operating characteristics as intended by the manufacturer.
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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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

In-Demand Oxygen Sensors for 2003 Jeep Grand Cherokees

Select from 20 premium Oxygen Sensors parts for your 2003 Jeep Grand Cherokee, with prices ranging from $29.99 to $92.99.

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$74.99

NGK 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, 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: 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, Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, 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: 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
ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

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$56.99

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 poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.

Product Features:

Specifically designed to meet the increasing demands of today’s engines
100 percent 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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$58.99

OEM QUALITY: 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, Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, 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: 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
ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

from

$56.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

from

$79.99

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
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

from

$32.99

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

from

$61.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

from

$56.99

NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.

Product Features:

OEM QUALITY: 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, Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, 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: 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
ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

from

$55.99

OEM QUALITY: 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, Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, 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: 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
ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

from

$59.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

from

$29.99

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

from

$92.99

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

from

$89.99

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

from

$83.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

from

$81.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

from

$69.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

from

$51.99

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

from

$52.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

from

$54.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

from

$55.99

Specifically designed to meet the increasing demands of today’s engines
100 percent 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

Most Sold 2003 Jeep Grand Cherokee Fuel Injectors

Explore our best-selling Jeep parts for the 2003 Grand Cherokee among 19 OEM and aftermarket options starting from $2.99.

show more show less

from

$65.99

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
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

from

$50.99

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
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

from

$8.49

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

from

$65.99

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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$8.99

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

from

$54.99

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

from

$9.99

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

from

$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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$2.99

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:

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

from

$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

from

$294.99

Includes six premium fuel injectors
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

from

$121.99

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

Built To Meet Or Exceed OE Specifications
OE Style
Direct Fit

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$111.99

Quality Components Deliver Maximum Spraying Action To Give Your Ride The Power It Needs When It Needs It Most
Crown Automotive Fuel Injectors Supply Optimum Fuel Efficiency For Your Engine
Offers OE Fit And Function
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts

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$76.99

VDO original equipment fuel injectors are identical fit, form, and function and provide the exact quality of OE components supplied to auto manufacturers worldwide. Professional technicians and DIYers alike want quality products for ease of installation, fit, and performance. VDO fuel injectors are designed for long service life and simplified installation. They are built in OE ISO TS certified facilities and manufactured to the highest quality standards. They offer dependable performance and robust design by being original equipment while still maintaining a competitive price.

Product Features:

The exact OEM part
Exact form fit and function
Simplified plug-and-play Installation
Durable long-lasting design
Made in the USA
Made in ISO certified facilites

from

$48.99

The exact OEM part
Exact form fit and function
Simplified plug-and-play Installation
Durable long-lasting design
Made in the USA
Made in ISO certified facilites

from

$37.99

Manufactured From High Quality Material
Engineered To The Specifications
Meets The Quality Standards
Designed For Performance And Durability
Easy To Install

from

$9.99

Crown Automotive Fuel Injector Clips Are Made To Meet Or Exceed OEM Specifications
Quality Direct Replacement Parts
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
Long-Lasting, Durable Crown Automotive Products

from

$8.99

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.

from

$7.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Unsurpassed quality you can trust
Validated for fit, form and function
Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

Top-Rated Fuel and Emissions Systems Brands For Your 2003 Jeep Grand Cherokee

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2003 Jeep Grand Cherokees. Below you’ll find some of our best rated Fuel and Emissions Systems from DENSO, NTK, and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2003 Grand Cherokee start at just $8.99 and are rated as high as 4.6 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.

Popular DENSO 2003 Jeep Grand Cherokee Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2003 Jeep Grand Cherokee, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. DENSO ticks all of those boxes. We offer a wide selection of DENSO Fuel and Emissions Systems, specifically designed for the 2003 Jeep Grand Cherokee. With over 3 DENSO 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 $56.99, with an average price of just $58.66. Plus, with over 338 customer reviews and an average rating of 4.6 stars, you can trust that our DENSO 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.

from $61.99

(332)

Oxygen Sensor: Downstream, 4 Wire, 13.98" Long, Heated, Exact Fit

“AS ADVERTISED!”

from $56.99

(1)

Oxygen Sensor: Downstream, 4 Wire, 11.81" Long, Heated, Exact Fit

“Perfect fit. Tool care of me error code. Jeep runs smooth now!”

from $56.99

(5)

Oxygen Sensor: Upstream, 4 Wire, 14.57" Long, Heated, Exact Fit

“these oxygen sensors fit directly into there position in the exhaust, but the rear or down stream sensors had to have the factory wire harness plug mo”

Popular NTK 2003 Jeep Grand Cherokee Fuel and Emissions Systems

NTK auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2003 Jeep Grand Cherokee owner should feel confident when installing genuine NTK parts in their vehicle. To ensure the best fit and performance for your 2003 Grand Cherokee, Advance Auto Parts carries a full inventory of 3 NTK Fuel and Emissions Systems. Plus you will be keeping your Jeep in peak condition while saving money because prices on these NTK Fuel and Emissions Systems range from $56.99 to $74.99, plus, with more than 30 customer reviews and an impressive 4.6 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.

from $56.99

(15)

Switching Oxygen Sensor: 4 Wire, 18" Long, Heated, Direct Fit

“good price and quality”

from $74.99

(8)

Switching Oxygen Sensor: 4 Wire, 11.75" Long, Heated, Direct Fit

“great buy”

from $58.99

(7)

Switching Oxygen Sensor: 4 Wire, 18" Long, Heated, Direct Fit

“These parts worked great, both upstream and down stream. Very friendly staff.”

FAQs for 2003 Jeep Grand Cherokee Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2003 Jeep Grand Cherokees?

Out of 86 Fuel and Emissions Systems that fit 2003 Jeep Grand Cherokees, the following parts are the top sellers:

Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (18481529) – $17.79
Fuel Injector O-Ring Kit (3504360) – $8.49
Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (18730541) – $92.99

What’s the price range for 2003 Jeep Grand Cherokee Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2003 Jeep Grand Cherokee start at $2.99 and go up to $294.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2003 Jeep Grand Cherokee?

The average price for Fuel and Emissions Systems for the 2003 Jeep Grand Cherokee is $60.56. 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 Jeep Grand Cherokee model years?

Yes, we currently carry Fuel and Emissions Systems for 30 model years of Jeep Grand Cherokees 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 Jeep Grand Cherokee?

The cheapest 2003 Jeep Grand Cherokee Fuel and Emissions Systems we carry in stock are:

Fuel Injection Idle Air Control Valve Seal (20688440) – $2.99
Fuel Injection Idle Air Control Valve Seal (20688441) – $3.29
OE Replacement (50073977) – $5.99
Fuel Injector O-Ring Kit (12492271) – $7.99
Fuel Injector O-Ring Kit (3504360) – $8.49

What are the top-rated Fuel and Emissions Systems that fit the 2003 Jeep Grand Cherokee?

Out of 5,027 reviews by customers, our 2003 Jeep Grand Cherokee 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 Jeep Grand Cherokee and their top-rated products:

Idle Air Control Parts
- Fuel Injection Idle Air Control Valve (25987769) – $91.99

What types of Fuel and Emissions Systems do you sell for my 2003 Jeep Grand Cherokee?

As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2003 Jeep Grand Cherokee:

Can I get help with 2003 Jeep Grand Cherokee 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 Jeep Fuel and Emissions Systems and more.

What is your return policy for Jeep Grand Cherokee Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Jeep Grand Cherokee 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 Jeep Grand Cherokee Fuel and Emissions Systems

Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61807)

Delphi – Manifold Absolute Pressure Sensor (Part No.PS10229)

Omix – Intake Temp Sensor; 3.0L/4.0L/4.7L; 97-06 Jeep Wrangler TJ (Part No.17221.02)

Carquest – Fuel Injector (Part No.63857)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECE1015)

Carquest Premium – Vapor Canister Purge Solenoid (Part No.CPC1075)

Carquest Premium – Idle Air Control Valve (Part No.AEA1002)

Carquest – Fuel Tank Straps (Includes 2 Straps) (Part No.578-163)

Carquest Premium – Vapor Canister Shut-Off Valve (Part No.CPC1146)

Dorman – Fuel Filler Neck Assembly (Part No.574-056)

Carquest Premium – Fuel Pump E270147: Includes Strainer (Part No.E270147)

Crown Auto Jeep Replacmnt – OE Replacement (Part No.5014496AD)

ACDelco – Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with 8 O-Rings (Part No.217-3365)

Crown Auto Jeep Replacmnt – OE Replacement, Single (Part No.4418257AB)

Felpro – Fuel Injector O-Ring Kit (Part No.ES 73046)

Crown Auto Jeep Replacmnt – OE Replacement (Part No.5183448AA)

Carquest Premium – Evaporative Emissions System Leak Detection Pump Filter (Part No.VDC1201)

Crown Auto Jeep Replacmnt – OE Replacement (Part No.53030497)

Carquest Premium – Fuel Pump Strainer FS2510488 (Part No.FS2510488)

Crown Auto Jeep Replacmnt – OE Replacement, Metal/Plastic/Rubber, Zinc (Part No.4637071)

Omix – Oxygen Sensor (Part No.17222.10)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1026)

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17507)

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12427)

Carquest Premium – Multi-Use Connector (Part No.PTC1168)

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

Carquest Premium – Reman Multi Port Fuel Injector – 6 Pack (Part No.A212-1281-6PK)

Carquest Premium – Reman Multi Port Fuel Injector – 8 Pack (Part No.A212-1631-8PK)

NTK – Manifold Absolute Pressure Sensor (Part No.MA0114)

NTK – Ambient Air Temperature Sensor (Part No.AN0009)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECE1022)

NTK – Air Charge Temperature Sensor (Part No.AJ0019)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECE1031)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1026)

NTK – Manifold Absolute Pressure Sensor (Part No.MA0115)

Carquest Premium – Air Charge Temperature Sensor (Part No.WTA1025)

Carquest Premium – Air Charge Temperature Sensor (Part No.WTA1063)

Delphi – Manifold Absolute Pressure Sensor (Part No.PS10022)

Omix – Map Sensor; 97-04 Jeep Wrangler TJ (Part No.17223.02)

Crown Auto Jeep Replacmnt – OE Replacement (Part No.56029405)

Omix – Intake Temp Sensor; 3.0L/4.0L/4.7L; 97-06 Jeep Wrangler TJ (Part No.17221.02)

Delphi – Manifold Absolute Pressure Sensor (Part No.PS10236)

Crown Auto Jeep Replacmnt – OE Replacement (Part No.56028364AA)

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

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

Carquest Premium – Fuel Cap (Part No.10842)

Carquest Premium – Locking Fuel Tank Cap (Part No.10508)

Carquest Premium – Locking Fuel Tank Cap (Part No.10512)

Motorad – Non-Locking Tethered Fuel Tank Cap (Part No.MGC837T)

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

Crown Auto Jeep Replacmnt – Non-Locking, Black, Plastic (Part No.52102464AA)

Carquest Premium – Fuel Strainer (Part No.FS220)

Carquest Premium – Fuel Pump Module Assembly (Part No.E7127MN)

Carquest Premium – Fuel Pump Module Assembly: Fuel Pump, Sending Unit, Wiring Harness and Strainer (Part No.M312894)

Delphi – Fuel Pump Module Assembly: With Float Arm (Part No.FG0918)

Carquest Premium – Fuel Pump E270147: Includes Strainer (Part No.E270147)

Delphi – Fuel Pump Strainer (Part No.FS0112)

Carquest Premium – Fuel Pump Strainer FS2321034 (Part No.FS2321034)

Delphi – Electric Fuel Pump: With Clamps, Hose Piece, Isolator, Seal, Splices, 2-Wire Harness w/Connector (Part No.FE0300)

KAI – Electric Fuel Pump (Part No.FMD010109)

Carquest Premium – Multi-Use Connector (Part No.PTC1168)

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

NTK – Switching Oxygen Sensor: 4 Wire, 11.75" Long, Heated, Direct Fit (Part No.23138)

DENSO – Oxygen Sensor: Upstream, 4 Wire, 14.57" Long, Heated, Exact Fit (Part No.234-4654)

NTK – Switching Oxygen Sensor: 4 Wire, 18" Long, Heated, Direct Fit (Part No.23140)

DENSO – Oxygen Sensor: Downstream, 4 Wire, 11.81" Long, Heated, Exact Fit (Part No.234-4746)

Bosch – Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal (Part No.15729)

Bosch – Oxygen Sensor: 4 Wire, 18.5" Long, Heated, Exact Fit (Part No.13687)

DENSO – Oxygen Sensor: Downstream, 4 Wire, 13.98" Long, Heated, Exact Fit (Part No.234-4747)

NTK – Switching Oxygen Sensor: 4 Wire, 18" Long, Heated, Direct Fit (Part No.23141)

NTK – Switching Oxygen Sensor: 4 Wire, 18" Long, Heated, Direct Fit (Part No.23139)

DENSO – Oxygen Sensor: Upstream, 4 Wire, 18.50" Long, Heated, Exact Fit (Part No.234-4653)

Bosch – Oxygen Sensor: 4 Wire, 11.81" Long, Heated, Exact Fit (Part No.13937)

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.234-4209)

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

DENSO – Oxygen Sensor: Downstream, 4 Wire, 18.70" Long, Heated, Exact Fit (Part No.234-4029)

Bosch – Oxygen Sensor: 4 Wire, 12.6" Long, Heated, Exact Fit (Part No.13717)