2003 Infiniti Q45 Fuel and Emissions Systems

Essential 2003 Infiniti Q45 Fuel and Emissions Systems

Carquest Premium – Vapor Canister Purge Valve (Part No.CPC1211)

Vapor Canister Purge Valve

from

$102.99
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.
See More

Carquest Premium – Vapor Canister Purge Solenoid (Part No.CPA1238)

Vapor Canister Purge Solenoid

from

$113.99
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.
See More

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

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

from

$88.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; 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
See More

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

Fuel Cap Tester Adapter

from

$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
See More

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

Fuel Injector O-Ring

from

$1.24
Fuel Injector O-Ring

Felpro – UPPER INTAKE MANIFOLD GASKET/ PLENUM GASKET (Part No.MS 97339)

UPPER INTAKE MANIFOLD GASKET/ PLENUM GASKET

from

$50.99
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
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

Wells Vehicle Electronics – Fuel Injection Pressure Damper (Part No.3G1065)

Fuel Injection Pressure Damper

from

$251.99
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
See More

Nippon Reinz – Fuel Inject Cushion Ring (Part No.C1011309846NRZ)

Fuel Inject Cushion Ring

from

$4.77
NIPPON REINZ engineers work with OEMs to develop complete engine sealing solutions for gasoline, diesel, and alternative energy vehicles. We employ custom sealing solutions through our expert problem solving utilizing our regional research and development centers. As an Integral Partner with Virtually Every major vehicle and engine manufacturer worldwide, NIPPON REINZ offers a comprehensive range of sealing Innovative Systems, INCLUDING Head gaskets, Heat shields, sealing modules, secondary gaskets, Valve stem Seals, and transmission components.
See More

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

Exhaust Gas Recirculation (EGR) Vacuum Regulator Solenoid Connector

from

$149.99
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.
See More

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

Fuel Injector O-Ring Kit

from

$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.
See More

Dorman – OE Solutions Evaporative Fuel Vapor Canister (Part No.B7070670764DOR)

OE Solutions Evaporative Fuel Vapor Canister

from

$294.85
Dorman’s Vapor Canister is engineered from robust materials. As part of the Evap system, it effectively stores fuel vapors from the gas tank and sends them to the engine for combustion. Replacement helps control hydrocarbon emissions from escaping into the environment.

Product Features:
  • Direct replacement for a proper fit
  • A necessary replacement item for passing inspection in certain states
  • Replacement clears the check engine light
  • Rigorous on-vehicle and bench testing have been undertaken to ensure trouble-free performance
See More

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1186)

Ambient Air Temperature Sensor

from

$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.
See More

Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ7253)

Mass Air Flow Sensor (MAF) - 100% NEW

from

$146.99
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
See More

Dorman – Evaporative Purge Solenoid Valve (Part No.B7080751087DOR)

Evaporative Purge Solenoid Valve

from

$192.11
Dorman’s Vapor Canister Purge Valve restores on- board diagnosis of the EVAP system. Plus, its high quality metal and plastic construction keeps the system working properly, year after year.

Product Features:
  • Mounting hardware included (where applicable)
  • O-ring included (where applicable)
  • Designed for enduring resistance to harsh road and weather conditions
  • Direct replacement for a proper fit every time
See More

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

Fuel Tank Cleaning Kit

from

$12.49
To perform a complete fuel pump replacement, clean the tank every time. Order the Delphi Fuel Tank Cleaning Kit (Part FC01). Remember, the original pump went into a clean fuel tank, to ensure the same level of performance, the new pump should too. 100 ye

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
See More

Dorman – Evaporative Emissions Canister Vent Valve (Part No.911-501)

Evaporative Emissions Canister Vent Valve

from

$157.99
A malfunctioning vapor canister vent solenoid can cause the engine light to come on. This vapor canister vent solenoid is engineered of quality materials for durability to ensure proper operation of the vehicle’s evaporative emissions system.

Product Features:
  • Direct replacement – this vapor canister vent solenoid fits and performs like original equipment with simple plug-and-play installation
  • Quality construction – manufactured from premium materials for a long service life
  • Excellent value – original equipment function at a lower price
  • Quality tested – has undergone simulation and endurance testing to ensure proper fit and performance
See More

Carquest Premium – Multi Purpose Relay (Part No.RAA1754)

Multi Purpose Relay

from

$20.49
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.
See More

Carquest Premium – Fuel Pump E1496018: Includes Strainer (Part No.E1496018)

Fuel Pump E1496018: Includes Strainer

from

$276.99
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
See More

Carquest – Fuel Injector Connector (Part No.PT2318)

Fuel Injector Connector

from

$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
See More

Hitachi – Fuel Injector – New Actual OE Part (Part No.FIJ0001)

Fuel Injector - New Actual OE Part

from

$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
See More

NTK – NTK Oxygen Sensor (Part No.C5010324698NTK)

NTK Oxygen Sensor

from

$199.46
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
See More

DENSO – First Time Fit Air Fuel Ratio Sensor (Part No.C5015689950ND)

First Time Fit Air Fuel Ratio Sensor

from

$169.13
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
See More

Carquest Premium – Fuel Tank Pressure Sensor (Part No.ECA2202)

Fuel Tank Pressure Sensor

from

$159.99
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.
See More

Ishino – Fuel Rail Insulator (Part No.C1008251685ISH)

Fuel Rail Insulator

from

$1.83
Fuel Rail Insulator

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

Locking Fuel Cap: 10508, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

from

$24.99
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:
  • 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
See More

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

Fuel Cap: 10838, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

from

$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
See More

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17591)

Keyed Alike Locking Fuel Cap

from

$11.99
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
See More

Carquest Premium – Locking Fuel Cap: 10501, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10501)

Locking Fuel Cap: 10501, Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$24.99
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:
  • 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
See More

2003 Infiniti Q45 Fuel and Emissions Systems

You count on your 2003 Infiniti Q45 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Fuel and Emissions Systems. With 67 Fuel and Emissions Systems ranging in price from $1.24 to $520.87, you’re sure to find everything you need for your 2003 Infiniti Q45.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 19 different brands like Carquest Premium, Felpro, and Bosch. 2003 Infiniti Q45 Fuel and Emissions Systems start as low as $1.24!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 524 extensive product reviews on 2003 Infiniti Q45 Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Switching Oxygen Sensor: 4 Wire, 14.5" Long, Heated, Direct Fit with 5.0 stars and Locking Fuel Cap: 10512, Screw On, Direct Fit, Provides Tight Seal, 1 Pack with 4.0 stars.

Did we mention you can order your Fuel and Emissions Systems from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Fuel and Emissions Systems inventory for your 2003 Infiniti Q45 below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 2003 Infiniti Q45

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Infiniti Q45 running right for years to come. In our inventory you’ll find brands like Carquest Premium, Felpro, Bosch, and even more.

Popular Spectra Premium Fuel and Emissions Systems

You’ll find popular Spectra Premium brand products across Fuel Injectors. All are waiting to get your 2003 Infiniti Q45 back on the road. Some of the top-rated Spectra Premium products in these categories are:
Mass Air Flow Sensor
from $158.99
(5)
Mass Air Flow Sensor
Air Flow Meters and Mass Air

Top-Rated Carquest Premium Fuel and Emissions Systems


If Carquest Premium are what you’re looking for, our inventory holds plenty. We stock Carquest Premium brand Fuel and Emissions Systems for your 2003 Infiniti Q45, and some of our most reviewed Carquest Premium parts include:
Fuel Cap
from $17.79
(40)
Fuel Cap
Gas Caps

FAQs for 2003 Infiniti Q45 Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 2003 Infiniti Q45?

Out of 67 Fuel and Emissions Systems for the 2003 Infiniti Q45, the most popular in our inventory are:
Fuel Injector O-Ring Kit
from $7.49
(109)
Fuel Injector O-Ring Kit
Fuel Injector O-Ring Kits
Tethered Fuel Cap
from $25.99
This product is not rated
Tethered Fuel Cap
Gas Caps

What are the top-rated 2003 Infiniti Q45 Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2003 Infiniti Q45 based on customer reviews/ratings are:
Switching Oxygen Sensor: 4 Wire, 14.5" Long, Heated, Direct Fit
from $111.99
(7)
Switching Oxygen Sensor: 4 Wire, 14.5" Long, Heated, Direct Fit
“Fit my car exactly”
Keyed Alike Locking Fuel Cap
from $14.29
(5)
Keyed Alike Locking Fuel Cap
“I was a bit worried about someone stealing gas from my car. No more!”