Lexus RX300 Fuel and Emissions Systems

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Essential Lexus RX300 Fuel and Emissions Systems

Carquest Premium – Remanufactured Multi Port Fuel Injector (Part No.A212-2354)

Remanufactured Multi Port Fuel Injector

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$61.99
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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Victor Reinz – Fuel Injector O-Ring Kit (Part No.15-11974-01)

Fuel Injector O-Ring Kit

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$8.99
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.
  • Application specific molded rubber construction
  • Engineered cross section
  • Fits many popular fuel injection applications
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Carquest Premium – Idle Air Control Valve (Part No.AEC1025)

Idle Air Control Valve

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$235.99
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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Wells Vehicle Electronics – Fuel Injection Pressure Regulator 5G1228 (Part No.5G1228)

Fuel Injection Pressure Regulator 5G1228

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$111.99
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 OE designs. Every component either matches or improves on the OE design to ensure fast, easy installation, superior performance and reliability.

Product Features:
  • Application matched components ensure fuel injection system meets all emission regulations.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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NTK – Air Charge Temperature Sensor (Part No.EF0105)

Air Charge Temperature Sensor

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$36.99
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:
  • Air Charge Temperature Sensors are designed to meet or exceed OE specifications in form, fit and function to ensure proper monitoring of air temperature entering the engine
  • NTK’s Engine Coolant Temperature Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper engine operating temperature.
  • Air Charge Temperature Sensors are designed to meet or exceed OE specifications in form, fit and function to ensure proper monitoring of air temperature entering the engine
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Carquest Premium – Vapor Canister Purge Solenoid: Includes Mounting Hardware (Part No.EGA1112)

Vapor Canister Purge Solenoid: Includes Mounting Hardware

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$72.99
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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Carquest Premium – Fuel Cap Tester Adapter: (Part No.12427)

Fuel Cap Tester Adapter:

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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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Carquest Premium – Locking Fuel Tank Cap (Part No.10591)

Locking Fuel Tank Cap

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$23.99
Product Features:
  • Protects your fuel from theft and vandalism
  • 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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Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1121)

Ambient Air Temperature Sensor

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$46.99
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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NTK – Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 13.8" Long, Heated, Direct Fit (Part No.25697)

Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 13.8" Long, Heated, Direct Fit

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$389.99
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. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband 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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Carquest Premium – Multi-Use Connector (Part No.PTA2872)

Multi-Use Connector

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$42.99
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.
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • 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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Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

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

Fuel Injector Connector

from

$4.99
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.
  • Product constructed to meet all design and operating characteristics as intended by the manufacturer.
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Carquest Premium – Fuel Tank Pressure Sensor (Part No.ECC1865)

Fuel Tank Pressure Sensor

from

$248.99
Pressure sensors are used within several operating systems on the vehicle. Subjects in this category measure the pressure of both liquid and air to include air in a positive pressure and negative pressure range. Pressure sensors report out as the result of an electrical device called a strain gauge which produces an analog or digital signal output dependent on the needs of the circuit. Pressures may be very low such as barometric pressure, or extremely high such as in a high-pressure fuel injection system.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 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.
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MAHLE Original – Fuel Injection Nozzle O-Ring Kit (Part No.GS33654)

Fuel Injection Nozzle O-Ring Kit

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$7.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
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Carquest Premium – Fuel Injection Idle Air Control Valve Gasket (Part No.ABA1162)

Fuel Injection Idle Air Control Valve Gasket

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$8.99
The Fuel Injection Idle Air Control Valve controls the engine idle speed by allowing air to bypass the closed throttle plate. The idle air control valve gasket should be replaced any time the valve is removed for cleaning or service.

Product Features:
  • Application matched component to ensure the system can be returned to like new condition.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Carquest Premium – Fuel Pump: Includes Wiring Harness (Part No.E2246805)

Fuel Pump: Includes Wiring Harness

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$103.99
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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Carquest Premium – Fuel Injector Seal Kit (Part No.AS037)

Fuel Injector Seal Kit

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$16.99
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. Includes hard to find or previously dealer-only components.

Product Features:
  • Premium OE quality materials
  • Services one injector
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DENSO – Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-4206)

Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit

from

$87.99
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 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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Autotecnica – Vacuum Switching Valve (Part No.TY0318821)

Vacuum Switching Valve

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$31.99
Autotecnica offers high-quality aftermarket parts for a wide variety of Asian and North American passenger cars and trucks, include braking, cooling, driveline, electrical, engine, fuel, HVAC, steering, and suspension categories. Autotecnica is the smart choice. Whether you’re a DIY enthusiast or professional technician in need of replacement parts that meet OEM specifications, Autotecnica is an excellent alternative to expensive ¿Genuine¿ components.

Product Features:
  • Guaranteed fitment
  • Replaces faulty vacuum switching valve that can leak and degrade engine performance
  • Manufactured to factory valve dimensions for easy installation and reliable operation
  • Durable heat resistant materials accommodate engine vibration and rapid vacuum fluctuations
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Carquest Premium – Multi-Use Connector (Part No.PTA1567)

Multi-Use Connector

from

$78.99
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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Delphi – Fuel Pump Strainer (Part No.FS0179)

Fuel Pump Strainer

from

$17.99
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:
  • Filtration performance meets or exceeds OE requirements
  • Micron rating meets or exceeds 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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Carquest Premium – New Mass Air Flow Sensor – Sensor Only (Part No.MQ6203)

New Mass Air Flow Sensor - Sensor Only

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$94.99
Carquest Premium mass air flow (MAF) sensors are built to meet the original equipment (OE) specifications for each application. Our MAF sensors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium mass air flow sensors are 100% new and undergo extensive validation testing to ensure long-lasting performance and reliability.

Product Features:
  • Designed to meet OE specifications for fit, form and function
  • 100% new unit with no core charge
  • Advanced micro-controlled technology delivers more accurate output in extreme temperatures
  • Extensive validation testing to ensure precision output for better performance and reliability
  • O-rings or gaskets included where applicable
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Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.72898)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$4.99
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 for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Helping You Find the Right Fuel and Emissions Systems for Your Lexus RX300

You love your RX300. So we’ve made it easier than ever to help you find Lexus RX300 Fuel and Emissions Systems in our online catalog. Our inventory holds 60 aftermarket and OEM Fuel and Emissions Systems for your Lexus RX300, ranging from $3.99 to $389.99.

We offer parts from 12 brands trusted to make quality Fuel and Emissions Systems for your Lexus RX300. Before you buy, take some time to read through customer reviews. We currently have 3,425 reviews of Lexus RX300 Fuel and Emissions Systems from previous customers. Some of the top rated parts include Oxygen Sensor: Downstream, 4 Wire, 19.69" Long, Heated, Exact Fit with 4.5 stars and Locking Fuel Tank Cap with 4.3 stars.

Find your RX300 Fuel and Emissions Systems here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your Lexus RX300 part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Fuel and Emissions Systems Brands for Your Lexus RX300

Our inventory holds Fuel and Emissions Systems for your Lexus RX300 from 12 trusted brands. You’ll find OEM and aftermarket parts from brands like Carquest Premium, Motorad, and Delphi, all of which can keep that Lexus happy.
We have Delphi parts available for your Lexus RX300 in categories like Fuel Pumps. Some of the top-rated Delphi parts in these categories are:
Fuel Pump Strainer
from $17.99
(1)
Fuel Pump Strainer
Electric Pump Filter and Strainers
Fuel Pump Strainer
from $19.99
(5)
Fuel Pump Strainer
Electric Pump Filter and Strainers

Top-Rated Carquest Premium Fuel and Emissions Systems

Leading Carquest Premium Fuel and Emissions Systems

We carry Carquest Premium brand parts for your Lexus RX300 across several catalog categories, including Gas Caps. Some of our most reviewed Carquest Premium parts include:
Non-Locking Fuel Tank Cap
from $9.99
(142)
Non-Locking Fuel Tank Cap
Gas Caps

FAQs for Lexus RX300 Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the Lexus RX300?

Out of 60 Fuel and Emissions Systems for the Lexus RX300, the most popular in our inventory are:
Non-Locking Tethered Fuel Tank Cap
from $24.29
This product is not rated
Non-Locking Tethered Fuel Tank Cap
Gas Caps

What are the top-rated Lexus RX300 Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your Lexus RX300 based on customer reviews/ratings are:
Locking Fuel Tank Cap
from $23.99
(35)
Locking Fuel Tank Cap
“Ok”
Locking Fuel Tank Cap
from $24.99
(32)
Locking Fuel Tank Cap
“Great product.”