Cookies and audience measurement
We use Google Analytics to measure how the site is used and to improve our content. It only loads with your consent: you can decline at no cost and change your mind at any time. Privacy policy
This post contains affiliate links. As an Amazon Associate we earn from qualifying purchases.
Our picks are based on Amazon bestseller rankings, Amazon customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.
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.
Compatibility: For 2009-2014 Ford E-150, E-250, F-150; 2009-2015 Ford E-350 E-450 Super Duty; 2011 Ford F-250, F-350, F-450, F-550 Super Duty; 2011-2018 Ford F53; 2009-2018 Ford Flex; 2010-2012 Ford Fusion; 2015-2018 Ford Transit-150, -250, -350, -350 HD...
Precise Control: The fuel pump relay module has fast response and precise control capabilities, and can promptly adjust the fuel pump operating parameters according to engine requirements to ensure stable fuel supply and normal operation of the engine.
High-quality Design: The electronic module is well designed and has high temperature and vibration resistance, long service life and stable use, thus reducing maintenance and replacement costs.
SPECIFICATIONS & BRACKET DESIGN: Professional-grade MD113566 3-Pin SPST-NO (Normally Open) fuel injection relay. Rated for 12VDC with a 30A high-capacity contact load. Measured Dimensions: 1.14" x 0.94" x 1.65" (2.9 x 2.4 x 4.2 cm), featuring an...
OEM FITMENT & COMPATIBILITY: Precision-engineered replacement component compatible with Mitsubishi (Montero 1992-2002, Eclipse 1990-1999, 3000GT) and Dodge Ram 50/Stealth electrical systems. Direct replacement for OE numbers MD113566, MR224824, and...
DIAGNOSTIC CIRCUIT SOLUTION: Effectively resolves electrical failures indicated by DTC codes P0230 (Fuel Pump Primary Circuit) and P0170 (Fuel Trim). Restores reliable power to the multiport fuel injection (MFI) system, eliminating symptoms like...
INDUSTRIAL-GRADE ARC RESISTANCE: Features AgSnO2 (Silver Tin Oxide) contacts for superior electrical conductivity and thermal stability. This specialized material minimizes surface degradation and prevents contact welding during high-surge switching...
Powerful: This relay bypass switch controls the fuel pump independently of the "key on/off" system, Simplifying fuel injection testing
With Amplification Loop: The 9038A Relay Bypass Switch can be used with a clip-on amplifier probe/lab oscilloscope to monitor current
Plug and Play: Simple installation, can be installed vertically or horizontally, just plug in the fuel pump relay position to directly control the fuel pump circuit.
Operating Range: Maximum 20 amps continuous, 30 amps surge (12V), runs all automotive 12V DC motors with the flip of a switch
Fitment: This relay bypass switch kit compatible with Audi 2004-2006, Compatible with BMW 1995-2006; Compatible with Volkswagen 1999-2005. Replacement for GM for Chrysler for Domestic for Korean. Replaces 9038, 9036, 9037.
Enhanced Control: The 9038 Relay Bypass Switch Kit provides independent control over vital automotive components which using relays such as fuel pumps, window motors, headlight switches, air conditioning compressors and cooling fans, streamlining the fuel...
Reliable Performance: Built for durability and functionality, this relay bypass switch kit offers powerful performance by running all 12V DC motors with the push of a switch. Controls relay circuit independent of “key on” systems, ensuring reliable...
Effortless Installation: Enjoy a easy setup with the plug-and-play design of this switch kit. Simply insert it into the fuel pump relay position to gain direct control over the fuel pump circuit, enabling quick and efficient electrical diagnosis.
【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.
Last update on 2026-10-16 / 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.
As an Amazon Associate, we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change.
Before You Go!
Get the latest deals and product comparisons delivered to your inbox.
