Looking for the best replacement engine relays? Explore our top-tested options for popular vehicle models and find a reliable, long-lasting match with confidence.
Engine relays are the unsung heroes of your vehicle, ensuring smooth performance and reliability. When they fail, your car’s systems can suffer, from cooling fans to ignition. Finding the best replacement engine relays is key to keeping your vehicle running like new.
Relays control power to essential parts like fans, fuel pumps, and starters. Choosing the right one ensures your car stays cool, starts easily, and runs smoothly. Quality relays save you time and money in the long run.
We’ve researched and tested top relays for various models, from Audi to Nissan, Jeep to Toyota. This guide helps you find the perfect fit for your vehicle, ensuring peace of mind and long-lasting performance.
List of Top 10 Replacement Engine Relays
| Image | Title | Best For | Price |
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38410 93J21 Outboard Engine PTT Relay – Boat Engine Tilt Trim Relay Assy Replacement for to Outboard Engine |
This Outboard Engine PTT Relay is perfect for boat owners who need a reliable replacement for their outboard engine’s tilt and trim system. It’s easy to install and works great in tough marine conditions. |
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443951253AA 219 Automotive Relay (2-Pack), 12V 5-Pin 25A/10A, Compatible with Audi A4 A6 A8 Quattro S4 S6 RS6 VW Passat, Replacement for ECU Fuel Pump Main Power Relay, Fixes Engine No Start Issues |
This 2-pack of 443951253AA 219 Automotive Relays is perfect for Audi and VW owners who want a reliable fix for engine no-start issues. It’s ideal for DIY repairs or keeping a spare in your glovebox. |
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2-Pack 56055667AA Engine Cooling Fan Relay Compatible with Jeep Wrangler |
Jeep owners and mechanics will love this simple 2-pack kit. It fits the car and keeps the engine cool. |
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(Pack of 4) High Power 4-Pin Fuse Box Relay 13500114/8385 – 12V 40A |
This 4-pack of high-power relays is perfect for GM owners who need reliable replacements or backups. It’s easy to install and works for many car parts, like AC compressors and headlights. |
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Engine Cooling Fan Motor Relay Compatible with 2009-2016 Wrangler JK Replace 56055667AA 56055667AB |
Perfect for 2009–2016 Wrangler JK owners who need a new cooling fan relay. It replaces part 56055667AA or 56055667AB and helps keep the engine cool. |
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Engine Cooling Fan Relay 25230-00Q0J for Nissan Sentra Versa 2020-2023 Kicks 2019-2023, Replace 255507773R 277324GF0A 2523000Q0J Blower Fan Motor Relay |
This Engine Cooling Fan Relay is perfect for Nissan owners who need a reliable replacement part. It’s easy to install and fits specific models like the Kicks, Sentra, and Versa. |
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Vkinman 8K0959501A Engine Radiator Cooling Fan Control Module Relay Replacement for Audi A4 A5 A6 A7 Q3 Q5 Quattro, Replaces 8K0959501C 8K0959501G 8K0910501D |
Audi owners needing a new fan relay should get this part. It fits Audi A4 A5 A6 cars with ease. |
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39794-SDA-901 ECM Relay, Ref 39794-SDA-902, Engine Control Module Relay, Fits Honda Accord Civic CR-V Odyssey Pilot Ridgeline Fit S2000, Fits Acura MDX RDX TL TLX TSX ILX RLX ZDX NSX |
This ECM relay is perfect for Honda and Acura owners whose engine relay has failed. Check that your relay number is 39794-SDA-901 or 39794-SDA-902 before you buy. |
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Newnessai 25230-00Q0J Engine Cooling Fan Relay |
This Engine Cooling Fan Relay is perfect for Nissan owners who need a reliable replacement part. It’s easy to install and fits multiple models, making it ideal for DIY repairs. |
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Relay 28300-10020, 12V 4 Pins Purple Starter Relay 28300-10020 156700-0503 – Compatible for Toyota Camry Corolla Lexus Various Models |
This relay is perfect for Toyota and Lexus drivers who need a reliable starter. It fits many Camry and Corolla models and is easy to install. |
Detailed Reviews
Discover the best replacement engine relays for your car. Our top 10 picks blend expert review with real buyer feedback. Each guide checks fit, power, heat resistance, and value. Read on to find your ideal match with confidence.
1. 38410 93J21 Outboard Engine PTT Relay – Boat Engine Tilt Trim Relay Assy Replacement for to Outboard Engine

The 38410 93J21 Outboard Engine PTT Relay is a perfect replacement for your boat’s tilt trim system. It’s designed to match the original part, ensuring smooth and reliable performance.
This relay is easy to install, meets high standards, and works well in tough marine conditions. Keep your outboard engine running strong and stable with this quality part.
| Pros | Cons |
|---|---|
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Perfect For:
This Outboard Engine PTT Relay is perfect for boat owners who need a reliable replacement for their outboard engine’s tilt and trim system. It’s easy to install and works great in tough marine conditions.
Ready to Purchase?
2. 443951253AA 219 Automotive Relay (2-Pack), 12V 5-Pin 25A/10A, Compatible with Audi A4 A6 A8 Quattro S4 S6 RS6 VW Passat, Replacement for ECU Fuel Pump Main Power Relay, Fixes Engine No Start Issues

The 443951253AA 219 Automotive Relay is a reliable fix for engine issues. It works with Audi and VW models, ensuring smooth performance. This 2-pack offers great value and peace of mind.
It’s designed to solve problems like engine cranking but not starting. The 5-pin layout fits German-engineered vehicles perfectly. Its dual-output rating handles 25A and 10A efficiently.
Made with high-quality materials, it prevents overheating and extends lifespan. Keep a spare in your glovebox to avoid unexpected breakdowns. This relay is a smart choice for vehicle maintenance.
| Pros | Cons |
|---|---|
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Perfect For:
This 2-pack of 443951253AA 219 Automotive Relays is perfect for Audi and VW owners who want a reliable fix for engine no-start issues. It’s ideal for DIY repairs or keeping a spare in your glovebox.
Ready to Purchase?
3. 2-Pack 56055667AA Engine Cooling Fan Relay Compatible with Jeep Wrangler

Keep your Jeep Wrangler running cool with this 2-pack of engine cooling fan relays. These relays are compatible with 2009–2016 models, ensuring a perfect fit.
Reliable replacement parts for your vehicle’s cooling system. Two fan relay units included for maintenance. Direct-fit design makes installation easy.
Stable electrical control for consistent fan operation. Durable construction withstands engine bay conditions. Restores cooling fan control for smooth driving.
| Pros | Cons |
|---|---|
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Perfect For:
Jeep owners and mechanics will love this simple 2-pack kit. It fits the car and keeps the engine cool.
Ready to Purchase?
4. (Pack of 4) High Power 4-Pin Fuse Box Relay 13500114/8385 – 12V 40A

Upgrade your GM vehicle with this pack of 4 high-power relays. They are direct replacements for many GM models, fitting Buick, GMC, Cadillac, and more.
These 4-pin relays are built to last, handling up to 40A and working with many car parts. The compact design makes installation easy, and the value pack gives you four relays at a great price.
| Pros | Cons |
|---|---|
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Perfect For:
This 4-pack of high-power relays is perfect for GM owners who need reliable replacements or backups. It’s easy to install and works for many car parts, like AC compressors and headlights.
Ready to Purchase?
5. Engine Cooling Fan Motor Relay Compatible with 2009-2016 Wrangler JK Replace 56055667AA 56055667AB

2009-2016 Wrangler JK owners need a reliable cooling system. This relay helps control your fan to keep the engine from overheating. It replaces 56055667AA and 56055667AB part numbers perfectly. Install this relay in your vehicle’s fuse box quickly. This part maintains optimal temperature for longer engine life.
| Pros | Cons |
|---|---|
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Perfect For:
Perfect for 2009–2016 Wrangler JK owners who need a new cooling fan relay. It replaces part 56055667AA or 56055667AB and helps keep the engine cool.
Ready to Purchase?
6. Engine Cooling Fan Relay 25230-00Q0J for Nissan Sentra Versa 2020-2023 Kicks 2019-2023, Replace 255507773R 277324GF0A 2523000Q0J Blower Fan Motor Relay

Keep your Nissan running cool with the Engine Cooling Fan Relay 25230-00Q0J. This part fits Kicks, Sentra, and Versa models from 2019 to 2023. It’s a direct replacement for your old relay.
Made from high-quality ABS plastic, this relay is durable and long-lasting. It replaces part numbers like 25230-00Q0J and 255507773R.
Before buying, check your car model and the OE part number. The package includes one engine cooling fan relay.
| Pros | Cons |
|---|---|
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Perfect For:
This Engine Cooling Fan Relay is perfect for Nissan owners who need a reliable replacement part. It’s easy to install and fits specific models like the Kicks, Sentra, and Versa.
Ready to Purchase?
7. Vkinman 8K0959501A Engine Radiator Cooling Fan Control Module Relay Replacement for Audi A4 A5 A6 A7 Q3 Q5 Quattro, Replaces 8K0959501C 8K0959501G 8K0910501D

The Vkinman 8K0959501A Engine Radiator Cooling Fan Control Module Relay is a direct fit replacement for many Audi models. It replaces multiple part numbers, making it a versatile solution. This part ensures your Audi’s cooling system works reliably.
It’s easy to install and comes with everything you need. The package includes one control module relay, ready for a quick fix.
| Pros | Cons |
|---|---|
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Perfect For:
Audi owners needing a new fan relay should get this part. It fits Audi A4 A5 A6 cars with ease.
Ready to Purchase?
8. 39794-SDA-901 ECM Relay, Ref 39794-SDA-902, Engine Control Module Relay, Fits Honda Accord Civic CR-V Odyssey Pilot Ridgeline Fit S2000, Fits Acura MDX RDX TL TLX TSX ILX RLX ZDX NSX

The 39794-SDA-901 ECM Relay is a replacement part for your car’s engine control system. It fits many Honda and Acura models, from Accords to NSXs. Always check the OE number before buying.
This relay is easy to install but needs the right fit. It works with specific years and models, so double-check your car’s details. Wrong parts can cause trouble later.
Get your car running smoothly again with this reliable relay. It’s a direct replacement for the original part. Drive with confidence knowing it fits perfectly.
| Pros | Cons |
|---|---|
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Perfect For:
This ECM relay is perfect for Honda and Acura owners whose engine relay has failed. Check that your relay number is 39794-SDA-901 or 39794-SDA-902 before you buy.
Ready to Purchase?
9. Newnessai 25230-00Q0J Engine Cooling Fan Relay

The Newnessai 25230-00Q0J Engine Cooling Fan Relay is a perfect fit for Nissan KICKS, SENTRA, and VERSA models. It works with multiple vehicles from 2019 to 2023.
Easy to install, no tools needed, and ready to use.
Replaces old parts like 25230-00Q0J, 277324GF0A, and 277324GF0B.
Made from durable materials, it lasts long and performs reliably. Always check the part number and compare images before buying.
| Pros | Cons |
|---|---|
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Perfect For:
This Engine Cooling Fan Relay is perfect for Nissan owners who need a reliable replacement part. It’s easy to install and fits multiple models, making it ideal for DIY repairs.
Ready to Purchase?
10. Relay 28300-10020, 12V 4 Pins Purple Starter Relay 28300-10020 156700-0503 – Compatible for Toyota Camry Corolla Lexus Various Models

The Relay 28300-10020 is a 12V 4-pin starter relay designed for reliable starting power. It works perfectly with Toyota, Lexus, Camry, and Corolla models, ensuring a smooth ignition every time.
This relay features a secure 4-pin design that minimizes connection issues. It’s easy to install, requiring no complex modifications or wiring.
Wide compatibility, high-quality replacement, and straightforward installation make this relay a smart choice for your vehicle.
| Pros | Cons |
|---|---|
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Perfect For:
This relay is perfect for Toyota and Lexus drivers who need a reliable starter. It fits many Camry and Corolla models and is easy to install.
Ready to Purchase?
Buying Guide
Engine relays keep your car running well. They switch power to key parts. Use the best parts for your car.
Tom replaced his boat relay quickly. He saved money. His engine ran strong again.
- Pin Layout: Count your pins. Match the old box exactly.
- Amperage: Check the amps. Use high amps for powerful parts.
- Voltage: Check the power. Use only 12V parts for cars.
- Fitment: Check the model. Wrong fit leads to failure.
- OE Numbers: Match the old code. The right number fits right.
- Durability: Check the seal. Protect against water and heat.