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The Best Automotive Replacement Fuel Injection Relays

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A reliable fuel injection relay is crucial for your vehicle's performance and longevity. Ensuring your engine receives the correct fuel delivery at the right time depends heavily on this small but vital component. Choosing a high-quality replacement can prevent potential drivability issues and costly repairs down the line.

Looking for the best Automotive Replacement Fuel Injection Relays?

Discover now our comparison of the best Automotive Replacement Fuel Injection Relays. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Fuel Injection Relays are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Fuel Injection Relays in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1
Standard Motor Products RY422T Fuel Injection Relay for 1992-2000 Honda Civic
  • Country Of Origin : United States
  • The Package Height Of The Product Is 2.7 Inches
  • The Package Length Of The Product Is 5.3 Inches
  • The Package Width Of The Product Is 3.78 Inches
No. 2
WMAutoPart Fuel Injection Relay 12088567
  • Rapidly dissipates heat for cooler operating temperatures and longer part life
  • Precise short-circuit protection
  • Mounting and connectors identical to OE
  • OE form, fit and function for precise fit and reliable operation
  • Precise fit and size for ease of installation
No. 3
KLLJRFW 5 Pin 12V Multi Purpose Fuel Injection Relay, Automotive Fuel Pump Relay Fit 61361729004 Compatible...
  • WIDE APPLICATION: This multifunctional relay is designed for a range of , including E30, E, E34, E36, and E38, such as the 318i, 5e, and 740iL, it provides reliable and stable performance, adhering to original standards to ensure seamless integration with...
  • OE REFERENCE: For a precise fit, this relay is designed to match the OE part number 61361729004, ensuring compatibility with the original part is crucial, so verify that the OE number aligns with the relay you’re replacing, this attention to detail...
  • COMPACT and STURDY: Constructed from ABS plastic and metal, this 5-pin headlight relay kit is both flame retardant and robust, its compact design does not compromise on strength, making it resistant to damage and wear, engineered for longevity, it...
  • EXCELLENT REPLACEMENT: This fog light relay offers a straightforward replacement for malfunctioning or worn-out units, easy to install and operate, it serves as a practical solution for restoring functionality to your vehicle’s electrical system, the...
  • RIGOROUS TESTING: Manufactured to exacting standards, this fuel pump relay kit has undergone extensive testing to ensure stable performance and high reliability, its production adheres to original specifications, making it a dependable choice for...
No. 4
DENSO Fuel Injection Main Relay Compatible with Toyota Tacoma 1998-2003
  • This DENSO Fuel Injection Main Relay is compatible with Toyota Tacoma 2003, 2002, 2001, 2000, 1999, 1998
  • Genuine DENSO Parts
  • Includes original packaging and hardware
  • Direct replacement auto parts
  • Confirm vehicle fitment with Amazon Confirmed Fit
No. 5
Geradepart RY-1118 Fuel Injection Pump Relay Fit for Mercedes-Benz C43 Amg Cl55 Cl600 Clk430 Clk55 E430 Ml...
  • 【Replacement OE Part Number & Year & Liter 】Our Fuel Injection Injection Pump Relay Replaces RY-1118, 1R2312, 0025421319, 002542131926, AR6624, R6624, 20916, 0025421319, 002542131926, 0025427219, 1R1612, 1R2312, 25-0610, R6624, 56-2565, RAA...
  • 【Compatible with Cadillac Vehicles】 Fuel Injection Injection Pump Relay Fit for 2007-2008 BLS
  • 【Compatible with Mercedes-Benz Vehicles】 Fuel Injection Injection Pump Relay Fit for 1998 C43 AMG | 2001-2006 CL55 AMG | 2001-2002 CL600 | 2004-2006 CL600 | 1999-2000 CLK430 | 2001 CLK55 AMG | 1998 E430 | 2000-2003 ML55 AMG | 2006 S350 | 2003 S...
  • 【Superior Weatherproofing】 Integrated IP102-rated seal protects against dust, water, and moisture, guaranteeing optimal function in harsh engine bay conditions.
  • 【Premium Materials】 Constructed with high-temperature resistant PA181 plastic and precision copper terminals for excellent conductivity and long-term durability.
No. 6
Geradepart RY-720 1.3L 1.7L 2.0L 2.4L 3.5L Fuel Injection Relay Fit for Acura Fit for Honda Civic Cr-V Mdx...
  • 【Replacement OE Part Number & Year & Liter 】Our Fuel Injection Relay Replaces RY-720, 1R1462, 39794-S5A-901, 39794-S5A-902, AR6225, R6225, 20122, 39794S5A901, 39794S5A902, 1R1462, 25-0381, R6225, 56-1896, RAA...
  • 【Compatible with Acura Vehicles】 Fuel Injection Relay Fit for 2003-2006 MDX | 2002-2006 RSX
  • 【Compatible with Honda Vehicles】 Fuel Injection Relay Fit for 2001-2005 CIVIC | 2002-2006 CR-V | 2007 PILOT
  • 【Superior Weatherproofing】 Integrated IP152-rated seal protects against dust, water, and moisture, guaranteeing optimal function in harsh engine bay conditions.
  • 【Premium Materials】 Constructed with high-temperature resistant PA231 plastic and precision copper terminals for excellent conductivity and long-term durability.
No. 7
DENSO Fuel Injection Relay Compatible with Toyota Tundra 2000-2006
  • This DENSO Fuel Injection Relay is compatible with Toyota Tundra 2006, 2005, 2004, 2003, 2002, 2001, 2000
  • Genuine DENSO Parts
  • Includes original packaging and hardware
  • Direct replacement auto parts
  • Confirm vehicle fitment with Amazon Confirmed Fit
No. 8
Geradepart RY-412 5.0L 5.6L Fuel Injection Pump Relay Fit for Nissan Titan Xd 16-24, 1R1180 1R1312 1R...
  • 【Replacement OE Part Number & Year & Liter 】Our Fuel Injection Injection Pump Relay Replaces RY-412, 1R1180, 1R1312, 1R1559, 25230-0B015, 25230-79963, 25230-79964, 25230-7996A, 25230-C9963, 25230-C9973, 203-0075, AR6054, 36173, AR...
  • 【Compatible with Nissan Vehicles】 Fuel Injection Injection Pump Relay Fit for 2017 TITAN | 2019-2024 TITAN | 2016-2018 TITAN XD | 2020-2023 TITAN XD
  • 【Secure & Vibration-Resistant】Features a positive locking clip and tight seal to prevent disconnections, ensuring reliable performance in high-vibration environments.
  • 【Superior Weatherproofing】 Integrated IP222-rated seal protects against dust, water, and moisture, guaranteeing optimal function in harsh engine bay conditions.
  • 【Premium Materials】 Constructed with high-temperature resistant PA301 plastic and precision copper terminals for excellent conductivity and long-term durability.
No. 10
Fuel Injection Cold Advance Solenoid Relay Compatible With GMC K1500 6.2L V...
  • Includes 1 (One) Fuel Injection Cold Advance Solenoid Relay
  • Fits list of vehicles in image gallery fitment chart
  • Exceptional Quality and Performance: This OE replacement fuel injection cold advance solenoid relay is designed to meet, if not exceed, the performance and quality standards of the original equipment installed on your vehicle. Experience the same...
  • Direct Replacement, No Fuss: This OE replacement fuel injection cold advance solenoid relay is meticulously designed for your specific vehicle's make and model, promising a direct fit. Installation is as straightforward as it gets - no fuss, no...
  • Perfect Compatibility: Compatibility is key. Make sure to check our product specifications (in image gallery) to confirm that this OE replacement fuel injection cold advance solenoid relay matches your vehicle's requirements. Get the perfect fit and...

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Last update on 2026-04-17 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Automotive Replacement Fuel Injection Relays

Installation and Maintenance Tips

Replacing a fuel injection relay is typically a straightforward process, often located in the vehicle's fuse box or near the fuel pump. Consult your vehicle's service manual for the exact location and replacement procedure. It's advisable to disconnect the battery before performing any electrical work. Regularly inspect electrical connections for corrosion or damage to ensure optimal performance and prevent premature failure of the relay.

Frequently Asked Questions

How do I know if my fuel injection relay is bad?
Symptoms of a failing relay include the engine not starting, intermittent stalling, or a lack of fuel pressure. If your fuel pump isn't priming when you turn the ignition key, the relay is a common culprit.
Can I use a universal fuel injection relay?
While universal relays exist, it's best to find one specifically designed for your vehicle's make, model, and year. Using an incompatible relay can lead to electrical issues or improper fuel delivery.
Where is the fuel injection relay usually located?
The location varies by vehicle, but it's commonly found within the fuse box under the dashboard or in the engine compartment. Some vehicles may also have it near the fuel pump assembly.
How long do fuel injection relays typically last?
With proper operation, a fuel injection relay can last for many years and thousands of miles. However, factors like heat, vibration, and electrical surges can shorten their lifespan.
Should I replace the fuel pump if the relay is bad?
Not necessarily. The relay and fuel pump are separate components, and a bad relay doesn't automatically mean the fuel pump is failing. It's best to diagnose each part individually.