2021 Jeep Wrangler Fuel and Emissions Systems

Below you will find various in-demand Jeep Fuel and Emissions Systems, components and accessories for your 2021 Wrangler. Advance Auto Parts has popular Wrangler parts like Air Flow Sensors, Fuel Tanks, Fuel Pumps and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other Wrangler model years including 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022, 2023 and more. Select a category of 2021 Jeep Wrangler Fuel and Emissions Systems below and start saving instantly.

Popular 2021 Jeep Wrangler Fuel and Emissions Systems Categories

Fuel Tank Cleaning Kits

Fuel Pressure Sensors

Gas Caps

Vapor Canister Purge Valves

Fuel Vapor Leak Detection Pumps

MAP-Barometric Pressures

Canister Purge Solenoids

EGR Valves

Fuel Injectors

Fuel Injection Throttle Control Actuator Modules

Air Charge Temperature Sensors

Ambient Air Temperature Sensors

Fuel Injector O-Ring Kits

Fuel Injector Gaskets

Fuel Tank Lock Rings

EGR Valve Gaskets

EGR Valve Temperature Sensors

Fuel Cap Tester Adapters

Exhaust Gas Recirculation (EGR) Cooler Seals

Essential Fuel and Emissions Systems for 2021 Jeep Wranglers

from

$49.99

Engineered for a perfect fit and plug-and-play installation, this vapor canister purge valve is a direct replacement for the original equipment purge valve. It is critical to the evaporative emissions system and fulfills government requirements.

Product Features:

Direct replacement – this vapor canister purge valve fits and functions like original equipment to ensure proper function of your vehicle’s evaporative emissions system
Quality construction – manufactured from premium materials for a long service life
Excellent value – original equipment quality at a lower price
Quality tested – has undergone testing to ensure proper fit and performance

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$294.99

Carquest Premium exhaust gas recirculation (EGR) valves are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Our Carquest Premium EGR valves are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium EGR valves undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium EGR 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
Where applicable stainless-steel sleeves used over cold rolled sleeves providing smooth EGR pintle operation under all operating conditions.
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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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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$2.99

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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$92.99

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:

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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$51.99

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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$10.99

Carquest Premium fuel tank lock rings are built by Carter Fuel Systems and Agility Auto Parts, industry leaders in high-quality fuel system components. Carquest Premium offers a complete line of fuel tank lock rings covering a wide variety of North American vehicle applications. Carquest Premium fuel tank lock rings are engineered to meet or exceed all OEM specifications. Carquest Premium fuel tank lock rings are precision stamped and are treated with a rust proof finish to ensure durability and strength.

Product Features:

Engineered to meet or exceed all OEM specifications.
Precision stamped and are treated with a rust proof finish to ensure durability and strength.

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$56.99

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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$12.49

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

Product Features:

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

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$8.49

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

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$6.79

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

from

$12.99

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
Manufactured for the sealing repair environment
Validated for fit, form, and function
Quality that you can trust

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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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$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

from

$34.99

Keep your EVAP system in check and ensure top-tier emissions control with Carquest’s high-performance Leak Detection Pumps. Built for accuracy and durability, these Leak Detection Pumps offer reliable performance, compliance with strict emission standards, and simple, direct fit installation. For dependable, eco-friendly performance, trust Carquest Leak Detection Pumps to protect your vehicle and the environment.

Product Features:

The pump plays a critical role in identifying leaks in the EVAP system, preventing harmful fuel vapors from escaping into the atmosphere
Designed to create precise vacuum, ensuring accurate identification of leaks for enhanced vehicle performance
Equipped with integrated sensors that continuously monitor pressure levels, allowing for immediate detection of any leaks or malfunctions
Meets or exceeds all OEM specifications

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$106.99

This evaporative emissions system leak detection pump is designed to match the fit and function of the original pump on specified applications, and is engineered for reliable performance and durability.

Product Features:

Direct replacement – this evaporative emissions system leak detection pump is designed to match the fit and function of the original pump on specified applications
Restores functionality – reliable replacement for an original part that has clogged or failed due to emissions control system damage
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$81.99

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.

from

$31.99

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.

from

$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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$26.49

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

Product Features:

Black
OE Style
Direct Fit

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$97.99

Elite Aluminum Fuel

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$407.99

Automobiles in the 21st century have replaced the more conventional throttle cable technology for an ECM (Electronic Control Module) that translates pedal travel into electronic signals in order to provide power to the wheels. The ETC system (Electronic Throttle Control), also known as drive-by-wire, has the unfortunate downside of delayed throttle response and subdued acceleration, creating problems in certain circumstances such as up-hill starts, quick gear changes, overtaking, etc. The Sprint Booster aims to overcome this throttle response delay for ETC-equipped vehicles, providing crisp on-tap acceleration at the driver’s disposal.

Product Features:

Reduces Throttle Response Time
Improved Acceleration
Easy To Install
Instant Increase In Horsepower And Torque

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$407.99

Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers.

Product Features:

Reduces Throttle Response Time
Improves Acceleration
Easy To Install
Does Not Affect The Vehicles Electronic System

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$16.99

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

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$9.99

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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$135.99

This fuel pressure sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this fuel pressure sensor is designed to match the fit and function of the original sensor on specified vehicle
Ideal solution – this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
Durable construction – this sensor is made from quality components to ensure reliable performance and a long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

Upgrade your 2021 Jeep Wrangler with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2021 Jeep Wrangler, 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 Wrangler functioning at its best. At Advance Auto Parts, we offer a wide selection of 35 Fuel and Emissions Systems for the 2021 Jeep Wrangler, designed to meet your needs without breaking the bank. From Air Flow Sensor replacements to Fuel Tanks 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 2021 Jeep Wrangler at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $4.99 to $407.99, with an average price of $80.28. Our 35 Fuel and Emissions Systems in stock come from 8 trusted brands, so you’re sure to find the right part for your 2021 Jeep Wrangler 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 2021 Jeep Wrangler, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like FELPRO Carquest Premium, and more. FELPRO Fuel and Emissions Systems start at just $4.99 and boast an impressive 4.6 stars average rating from customers. With 6,574 customer reviews and counting, our 2021 Jeep Wrangler 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 2021 Jeep Wrangler is always ready to roll. We’re committed to providing you with everything you need to keep your Wrangler in top shape, all in one place. Start shopping confidently below for your 2021 Jeep Wrangler!

Best-Selling Air Flow Sensors for 2021 Jeep Wranglers

Enhance the driving experience in your Jeep with 5 quality Air Flow Sensor components, starting at $24.99.

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$27.99

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 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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$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.

from

$35.99

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.

from

$28.99

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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$24.99

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.

Most Popular 2021 Jeep Wrangler Fuel Tanks

Customize your Jeep with 2 Fuel Tanks products like Fuel Tank Lock Rings and Fuel Tank Cleaning Kits, all priced under $20.99.

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from

$12.49

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

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$20.99

Carquest Premium offers a complete line of fuel tank lock rings covering a wide variety of North American vehicle applications. Carquest Premium fuel tank lock rings are engineered to meet or exceed all OEM specifications. Carquest Premium fuel tank lock rings are precision stamped and are treated with a rust proof finish to ensure durability and strength.

Product Features:

Engineered to meet or exceed all OEM specifications
Precision stamped and are treated with a rust proof finish to ensure durability and strength

Top Picks for 2021 Jeep Wrangler Fuel Pumps

Upgrade Jeep Wranglers with top-quality Fuel Pumps parts, including 2 OEM and aftermarket selections for your 2021 model.

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from

$37.99

The pump plays a critical role in identifying leaks in the EVAP system, preventing harmful fuel vapors from escaping into the atmosphere
Designed to create precise vacuum, ensuring accurate identification of leaks for enhanced vehicle performance
Equipped with integrated sensors that continuously monitor pressure levels, allowing for immediate detection of any leaks or malfunctions
Meets or exceeds all OEM specifications

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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 Fuel Injectors for 2021 Jeep Wranglers

Select from 6 premium Fuel Injectors parts for your 2021 Jeep Wrangler, with prices ranging from $4.99 to $407.99.

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$4.99

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

$79.99

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

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$7.99

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

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$407.99

Reduces Throttle Response Time
Improved Acceleration
Easy To Install
Instant Increase In Horsepower And Torque

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$369.99

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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$44.99

CARQUEST new gasoline fuel injectors are manufactured using state of the art equipment to ensure long life and trouble-free operation. Each injector is 100% tested to meet or exceed OE performance specifications.

Product Features:

Each unit meets OE specifications
Includes o-rings and seals made of premium OE quality materials
Includes application specific technical bulletin, where applicable

Most Sold 2021 Jeep Wrangler Gas Caps

Explore our best-selling Jeep parts for the 2021 Wrangler among 10 OEM and aftermarket options starting from $12.99.

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$17.79

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

Product Features:

Product Features:

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

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$17.79

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

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$24.99

Product Features:

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

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$28.99

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

from

$12.99

Product Features:

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

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$97.99

Elite Fuel Cap; Aluminum; Green; 01-18 Jeep Wrangler TJ/LJ/JK/JKU

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$97.99

Elite Aluminum Fuel

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$97.99

Elite Aluminum Fuel

from

$28.99

Capless fuel and diesel exhaust fluid (DEF) tank filler systems allow the entry of moisture and dirt that can damage fuel and emission control systems. Eliminate that potentially expensive problem while adding some distinctive style to your Jeep Grand Cherokee or Dodge Ram with these DEF and fuel tank caps. CNC-machined from billet aluminum and fitted with quality O-rings, these caps seal filler necks to keep contaminants out. They feature an eye-catching, glossy anodized coating that resists staining.

Product Features:

Improved design – these anodized aluminum diesel exhaust fluid (DEF) and fuel caps fit capless filler necks to keep contaminants out and protect emission and fuel systems from moisture and contaminants
Application specific – designed to securely seal the capless filler system necks on DEF and fuel tanks on certain Jeep Grand Cherokee and Dodge Ram diesel-equipped vehicles
Durable materials – precision-machined from durable billet aluminum and anodized with a glossy finish for durability and distinctive style
Trustworthy quality – vehicle try-on tested, and backed by a team of product experts in the United States and more than a century of automotive experience

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$16.99

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

Top-Rated Fuel and Emissions Systems Brands For Your 2021 Jeep Wrangler

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2021 Jeep Wranglers. Below you’ll find some of our best rated Fuel and Emissions Systems from FELPRO and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2021 Wrangler start at just $4.99 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 FELPRO 2021 Jeep Wrangler Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2021 Jeep Wrangler, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Fuel and Emissions Systems, specifically designed for the 2021 Jeep Wrangler. With over 1 FELPRO brand Fuel and Emissions Systems in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $4.99. Plus, with over 2 customer reviews and an average rating of 4.6 stars, you can trust that our FELPRO Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $4.99

(2)

Fuel Injection Throttle Body Mounting Gasket

“Easy to install”

Popular Carquest Premium 2021 Jeep Wrangler Fuel and Emissions Systems

Carquest Premium auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2021 Jeep Wrangler owner should feel confident when installing genuine Carquest Premium parts in their vehicle. To ensure the best fit and performance for your 2021 Wrangler, Advance Auto Parts carries a full inventory of 3 Carquest Premium Fuel and Emissions Systems. Plus you will be keeping your Jeep in peak condition while saving money because prices on these Carquest Premium Fuel and Emissions Systems range from $17.79 to $79.99, plus, with more than 231 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.

from $17.79

(40)

Fuel Cap

“good price”

from $79.99

(5)

Remanufactured Fuel Injector

“Works great”

from $17.79

(186)

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

“Perfect!”

FAQs for 2021 Jeep Wrangler Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2021 Jeep Wranglers?

Out of 35 Fuel and Emissions Systems that fit 2021 Jeep Wranglers, the following parts are the top sellers:

Non-Locking Tethered Fuel Tank Cap (12102515) – $28.99
Fuel Tank Cleaning Kit (11692237) – $12.49
Remanufactured Fuel Injector (11450894) – $79.99

What’s the price range for 2021 Jeep Wrangler Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2021 Jeep Wrangler start at $4.99 and go up to $407.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2021 Jeep Wrangler?

The average price for Fuel and Emissions Systems for the 2021 Jeep Wrangler is $80.28. 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 Wrangler model years?

Yes, we currently carry Fuel and Emissions Systems for 36 model years of Jeep Wranglers between 1987 and 2025. Fuel and Emissions Systems are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Fuel and Emissions Systems for my 2021 Jeep Wrangler?

The cheapest 2021 Jeep Wrangler Fuel and Emissions Systems we carry in stock are:

Fuel Injection Throttle Body Mounting Gasket (15781004) – $4.99
Exhaust Gas Recirculation (EGR) Valve Gasket (12044992) – $6.79
Fuel Injector Seal Kit (11692581) – $7.99
Fuel Tank Cleaning Kit (11692237) – $12.49
Non-Locking Diesel Fuel Tank Cap (10049430) – $12.99

What types of Fuel and Emissions Systems do you sell for my 2021 Jeep Wrangler?

As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2021 Jeep Wrangler:

Can I get help with 2021 Jeep Wrangler 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 Wrangler Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Jeep Wrangler 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.

2021 Jeep Wrangler Fuel and Emissions Systems

Dorman – Evaporative Emissions Purge Valve (Part No.911-410)

Carquest Premium – EGR Valve (Part No.EGE2603)

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

Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.70721)

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

Carquest Premium – Vapor Canister Purge Solenoid: Includes Mounting Hardware (Part No.CPA1024)

Carquest Premium – Fuel Tank Lock Ring (Part No.LO1511470)

Carquest Premium – Remanufactured Fuel Injector (Part No.A212-1531)

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

Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)

Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.36098)

Felpro – Engine Coolant Outlet Gasket (Part No.36100)

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

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

Carquest Premium – Evaporative Emissions System Leak Detection Pump: Includes Mounting Hardware (Part No.VDC1006)

Dorman – Fuel Vapor Leak Detection Pump (Part No.310-500)

Carquest Premium – Exhaust Gas Temperature (EGT) Sensor (Part No.EGA2493)

Carquest Premium – Air Charge Temperature Sensor (Part No.WTA1195)

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

Omix – Gas Cap; Non-Locking; 03-17 Jeep Wrangler (Part No.17726.15)

Rugged Ridge – Elite Aluminum Fuel (Part No.11229.12)

aFe POWER – Sprint Booster (Part No.77-16205)

aFe POWER – Sprint Booster (Part No.77-16204)

Felpro – UPPER INTAKE MANIFOLD GASKET/ PLENUM GASKET (Part No.MS 96176)

Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61806)

Dorman – Fuel Pressure Sensor (Part No.926-557)

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

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

Carquest Premium – Air Charge Temperature Sensor (Part No.WTA1125)

Delphi – Manifold Absolute Pressure Sensor (Part No.PS10244)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECC1274)

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

Carquest Premium – Fuel Tank Lock Ring LO1582928 (Part No.LO1582928)

Carquest Premium – Evaporative Emissions System Leak Detection Pump:Includes Mounting Hardware (Part No.VDC1001)

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

Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61438)

Carquest Premium – Remanufactured Fuel Injector (Part No.A211-1351)

Carquest Premium – Fuel Injector Seal Kit (Part No.AS052)

aFe POWER – Sprint Booster (Part No.77-16205)

Carquest Premium – Reman Multi Port Fuel Injector – 6 Pack (Part No.A211-1351-6PK)

Carquest Premium – New Multi Port Fuel Injector (Part No.A11-135N)

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.10512)

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

Carquest Premium – Non-Locking Diesel Fuel Tank Cap (Part No.10838D)

Rugged Ridge – Elite Fuel Cap; Aluminum; Green; 01-18 Jeep Wrangler TJ/LJ/JK/JKU (Part No.11229.13)

Rugged Ridge – Elite Aluminum Fuel (Part No.11229.12)

Rugged Ridge – Elite Aluminum Fuel (Part No.11229.10)

Dorman – Help – Fuel Filler Neck Cover (Part No.55298)

Motorad – Locking Tethered Diesel Fuel Tank Cap (Part No.MGC537T)