Best Automotive Relay Replacements: Top 10 Tested & Reviewed

Looking for the best automotive relay replacements? We’ve tested and reviewed the top 10 options to help you find the perfect fit for your vehicle’s needs.

Automotive relays are essential parts that keep your vehicle running smoothly. They control power flow to key systems like lights, fans, and starters. Choosing the right relay ensures your car works reliably and safely.

We’ve tested and reviewed the best automotive relay replacements to help you find the perfect fit. Whether you need a compact, waterproof, or high-power relay, our guide has you covered. Discover top picks that are easy to install and built to last.

List of Top 10 Automotive Relay Replacements

Image Title Best For Price
irhapsody 12vdc 30amp 4-pin Spst Multi-Purpose Starter Relay, Automotive Replacement Relays irhapsody 12vdc 30amp 4-pin Spst Multi-Purpose Starter Relay, Automotive Replacement Relays

This relay is perfect for anyone who wants a simple, plug-and-play fix for a car or lawnmower. It’s great for people who need a compact, easy relay that stays within safe limits.

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2PCS Car Relay Replacement OEM# 8T2T-14B192-AA,Multi-Purpose 4 Pin Relay Automotive Relays for Cars Compatible with Ford Lincoln,Standard 12 Volt Car Relays Car Accessories 2PCS Car Relay Replacement OEM# 8T2T-14B192-AA,Multi-Purpose 4 Pin Relay Automotive Relays for Cars Compatible with Ford Lincoln,Standard 12 Volt Car Relays Car Accessories

This 2PCS Car Relay Replacement is perfect for car owners who need a reliable and durable solution for their Ford, Lincoln, or Mercury vehicles. It’s ideal for DIY repairs or professional mechanics looking for high-quality, compatible parts.

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Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle

This relay harness is perfect for car, truck, van, boat, motorcycle owners who need a small, reliable switch that protects their circuits. Its built‑in diode keeps your electronics safe while the high‑life expectancy means you won’t have to replace it often.

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GM Genuine Parts 13500114 Multi-Purpose Relay GM Genuine Parts 13500114 Multi-Purpose Relay

This relay is made for GM drivers who need a reliable part that fits exactly like the original. It’s perfect for anyone who wants a durable, professional‑grade replacement that keeps their vehicle running smoothly.

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90987-02028 AC Replacement Relay 30A 12VDC Automotive Relay 4Pins Fits 1997-Up Vehicles 90987-02028 AC Replacement Relay 30A 12VDC Automotive Relay 4Pins Fits 1997-Up Vehicles

This relay is perfect for anyone who owns a 1997‑or‑newer car and needs a reliable AC fix. It works great for DIY owners and mechanics who want a quick, strong 30 A replacement.

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irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail, 5-PIN SPDT Automotive Relay irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail, 5-PIN SPDT Automotive Relay

This relay kit is perfect for car lovers and DIY enthusiasts who need reliable parts for their automotive projects. It’s great for anyone working on 12V systems and wants waterproof, dustproof protection.

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Cuttell 6-Pack 68083380AA Relay 12VDC 35A 4-Pin Automotive Relay Replacement for Select Dodge Ram Jeep Chrysler Relay Box, Fuel Pump, Cooling Fan, Starter, A/C Blower & Horn Circuits Cuttell 6-Pack 68083380AA Relay 12VDC 35A 4-Pin Automotive Relay Replacement for Select Dodge Ram Jeep Chrysler Relay Box, Fuel Pump, Cooling Fan, Starter, A/C Blower & Horn Circuits

This 6-pack of Cuttell relays is perfect for car owners who need reliable replacements for their Dodge, Jeep, Chrysler, or Ram vehicles. It’s also great for mechanics or DIY enthusiasts who want spare parts for quick fixes.

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Yourkar 2 PCS Car AC Relay, G8HL-H71-12VDC 4 Pins AC and Starter Relays, Multiple Power Relay Assembly Starter Relays for Driving Lights/Air Conditioning/Fans, Car Accessories Yourkar 2 PCS Car AC Relay, G8HL-H71-12VDC 4 Pins AC and Starter Relays, Multiple Power Relay Assembly Starter Relays for Driving Lights/Air Conditioning/Fans, Car Accessories

This product is perfect for drivers who want steady power and smooth performance in their car. It suits anyone who needs a simple, strong, and easy-to-use relay for many parts of their vehicle.

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4RD93168001 Relay (Pack of 4) - 12V 40A Automotive Waterproof Relay - Replacement for Hella 4RD 931 680-01, 007903001, 931680011 4RD93168001 Relay (Pack of 4) – 12V 40A Automotive Waterproof Relay – Replacement for Hella 4RD 931 680-01, 007903001, 931680011

This 4-pack of 12V 40A waterproof relays is perfect for anyone needing a reliable replacement for Hella relays in cars, boats, or industrial equipment. It’s easy to install and works great in tough conditions.

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Relay 15328866 (Set of 4) – 12VDC 20A 4-Pin High-Power SPDT Relay – Multi-Use Replacement for GM, GMC, Buick, Chevy Trucks & Cars Relay 15328866 (Set of 4) – 12VDC 20A 4-Pin High-Power SPDT Relay – Multi-Use Replacement for GM, GMC, Buick, Chevy Trucks & Cars

This Relay 15328866 is perfect for GM vehicle owners who need a reliable, high-power replacement for their fuel pumps, headlights, or A/C compressors. It’s easy to install and built tough for trucks and off-road use.

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Detailed Reviews

Discover the top 10 Automotive Relay Replacements, handpicked for reliability and performance. Each product is expert-reviewed and customer-approved, ensuring you find the perfect fit for your vehicle. From waterproof designs to easy installation, this guide simplifies your choice, so you can drive with confidence.

1. irhapsody 12vdc 30amp 4-pin Spst Multi-Purpose Starter Relay, Automotive Replacement Relays

irhapsody 12vdc 30amp 4-pin Spst Multi-Purpose Starter Relay, Automotive Replacement Relays

The irhapsody 12V DC 30Amp 4-Pin SPST Multi-Purpose Starter Relay is a plug-and-play solution for your automotive needs. It’s compact and easy to install, making it perfect for quick replacements.

This 4-prong relay works reliably on lawnmowers and many car models. Always stay within its limits by using it 10 to 15% below its rated capacity.

With its simple design, this relay is a versatile choice for various applications. It’s a dependable and efficient tool for your projects.

Pros Cons
  • Plug-and-play design for easy installation.
  • Compact size fits tight spaces effortlessly.
  • Versatile use for cars and lawnmowers.
  • Reliable performance within safe limits.
  • Not for heavy-duty use, stays below max rate.
  • Limited to 12V systems, no higher voltage options.
  • Basic design, lacks advanced features for complex setups.

Perfect For:

This relay is perfect for anyone who wants a simple, plug-and-play fix for a car or lawnmower. It’s great for people who need a compact, easy relay that stays within safe limits.

Ready to Purchase?

2. 2PCS Car Relay Replacement OEM# 8T2T-14B192-AA,Multi-Purpose 4 Pin Relay Automotive Relays for Cars Compatible with Ford Lincoln,Standard 12 Volt Car Relays Car Accessories

2PCS Car Relay Replacement OEM# 8T2T-14B192-AA,Multi-Purpose 4 Pin Relay Automotive Relays for Cars Compatible with Ford Lincoln,Standard 12 Volt Car Relays Car Accessories

These 4‑pin relays fit many Ford and Lincoln cars. They are simple to install. They help your car run well.

Each relay uses strong materials that last a long time. They stay steady even in tough heat.

They work with many models and support 12‑volt systems. They are great for many car repair needs.

Pros Cons
  • Fits many Ford and Lincoln models
  • Strong build for long use
  • Handles tough heat and shock
  • Easy plug‑in 4‑pin design
  • Works for many car systems
  • Limited to specific car models and OEM numbers.
  • No instructions included for installation.
  • Plastic housing may crack under extreme conditions.

Perfect For:

This 2PCS Car Relay Replacement is perfect for car owners who need a reliable and durable solution for their Ford, Lincoln, or Mercury vehicles. It’s ideal for DIY repairs or professional mechanics looking for high-quality, compatible parts.

Ready to Purchase?

3. Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle

Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle

The Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912 is a reliable and efficient solution for your vehicle’s electrical needs. It comes with a 12AWG harness and built-in diode, making it perfect for automotive, truck, van, boat, and motorcycle applications.

This relay harness features an integrated diode that protects your electrical components from damage. It has a small size, low power consumption, and high contact voltage. The contact material is Ag Alloy, ensuring durability and performance.

With a minimum operating voltage of 8V and standard operating voltage of 12V, this relay harness is easy to use. It has a long life expectancy, with 100,000 electrical operations and 10,000,000 mechanical operations. The built-in diode and high-quality materials make it a top choice for your vehicle.

Pros Cons
  • Built‑in diode protects electronics from voltage spikes
  • Compact size saves space, uses low power
  • Silver‑alloy contacts ensure reliable, low‑resistance switching
  • Long life: 100,000 electrical / 10,000,000 mechanical cycles
  • Works from 8 V to 12 V for versatile vehicle use
  • Wires may feel a bit thick for tight spots
  • Setup can take time for new users
  • Not ideal for very high‑heat areas

Perfect For:

This relay harness is perfect for car, truck, van, boat, motorcycle owners who need a small, reliable switch that protects their circuits. Its built‑in diode keeps your electronics safe while the high‑life expectancy means you won’t have to replace it often.

Ready to Purchase?

4. GM Genuine Parts 13500114 Multi-Purpose Relay

GM Genuine Parts 13500114 Multi-Purpose Relay

The GM Genuine Parts 13500114 Multi-Purpose Relay is a GM-recommended replacement part. It’s designed to work perfectly in your GM vehicle.

This relay offers the quality, reliability, and durability you expect from GM OE parts. It’s manufactured to GM standards for a perfect fit and function.

Easy to install, built to last, and trusted by professionals.

Pros Cons
  • GM-recommended part for perfect fit and function.
  • Reliable and durable like the original factory component.
  • Manufactured to GM’s high standards for quality.
  • Designed with professionals in mind for ease of use.
  • Limited to GM vehicles, not universal.
  • Higher cost compared to aftermarket options.
  • No added features, just basic replacement.

Perfect For:

This relay is made for GM drivers who need a reliable part that fits exactly like the original. It’s perfect for anyone who wants a durable, professional‑grade replacement that keeps their vehicle running smoothly.

Ready to Purchase?

5. 90987-02028 AC Replacement Relay 30A 12VDC Automotive Relay 4Pins Fits 1997-Up Vehicles

90987-02028 AC Replacement Relay 30A 12VDC Automotive Relay 4Pins Fits 1997-Up Vehicles

The 90987-02028 AC Replacement Relay is a reliable solution for your vehicle’s air conditioning system. It ensures your AC keeps working smoothly, just like before.

With a 30A rating, this relay handles high current loads with ease. Its 4-pin design makes installation simple and secure.

Fits 1997 and newer vehicles. Easy to install. Keeps your AC running.

Pros Cons
  • Reliable replacement for AC systems in modern vehicles.
  • Handles 30A current, perfect for automotive needs.
  • Fits 1997-up vehicles, ensuring wide compatibility.
  • 4-pin design for secure, efficient connections.
  • No cooling for heavy use
  • Low durability over time
  • Limited to 12VDC only

Perfect For:

This relay is perfect for anyone who owns a 1997‑or‑newer car and needs a reliable AC fix. It works great for DIY owners and mechanics who want a quick, strong 30 A replacement.

Ready to Purchase?

6. irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail, 5-PIN SPDT Automotive Relay

irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail, 5-PIN SPDT Automotive Relay

The irhapsody 5 Pack Relay Kit is built tough for automotive use. It includes 5-pin SPDT relays with heavy-duty pigtails. Each relay handles 40/30 AMP at 12V DC.

These relays are waterproof and dustproof, perfect for outdoor use. Always stay 10-15% below their rated capacity for safety.

The primary leads use 12 AWG tinned copper wire, while coil leads use 16 AWG. The nominal coil voltage is 12V DC, with a maximum applied voltage of 15.6V DC.

Pros Cons
  • Waterproof and dustproof design for reliable performance.
  • Heavy-duty pigtail with tinned copper wire for durability.
  • 5-PIN SPDT relay for versatile automotive applications.
  • 12V DC compatibility with high voltage tolerance.
  • Not fully waterproof, avoid using in deep water.
  • Female connectors bend easily, handle with extra care.
  • Stay below max rating, keep usage 10-15% lower.

Perfect For:

This relay kit is perfect for car lovers and DIY enthusiasts who need reliable parts for their automotive projects. It’s great for anyone working on 12V systems and wants waterproof, dustproof protection.

Ready to Purchase?

7. Cuttell 6-Pack 68083380AA Relay 12VDC 35A 4-Pin Automotive Relay Replacement for Select Dodge Ram Jeep Chrysler Relay Box, Fuel Pump, Cooling Fan, Starter, A/C Blower & Horn Circuits

Cuttell 6-Pack 68083380AA Relay 12VDC 35A 4-Pin Automotive Relay Replacement for Select Dodge Ram Jeep Chrysler Relay Box, Fuel Pump, Cooling Fan, Starter, A/C Blower & Horn Circuits

Cuttell 6-Pack 68083380AA is a 12VDC 35A 4‑pin automotive relay that fits many Dodge, Ram, Jeep, and Chrysler vehicles. It replaces the original relay in fuel pump, cooling fan, starter, A/C blower, horn, and other circuits.

These relays are easy to install with a plug‑in design. Keep a spare on hand for quick repairs or future maintenance.

Get the right fit. Check the original relay number before buying.

Pros Cons
  • Fits many Dodge, Jeep, and Chrysler models
  • Works for key parts like fans and pumps
  • Easy plug-in 4‑pin setup
  • Great 6-pack for fast swaps
  • Strong 12V 35A power support
  • May not fit all relay box layouts
  • Needs careful check of pin and code match
  • Not ideal if you only need one relay

Perfect For:

This 6-pack of Cuttell relays is perfect for car owners who need reliable replacements for their Dodge, Jeep, Chrysler, or Ram vehicles. It’s also great for mechanics or DIY enthusiasts who want spare parts for quick fixes.

Ready to Purchase?

8. Yourkar 2 PCS Car AC Relay, G8HL-H71-12VDC 4 Pins AC and Starter Relays, Multiple Power Relay Assembly Starter Relays for Driving Lights/Air Conditioning/Fans, Car Accessories

Yourkar 2 PCS Car AC Relay, G8HL-H71-12VDC 4 Pins AC and Starter Relays, Multiple Power Relay Assembly Starter Relays for Driving Lights/Air Conditioning/Fans, Car Accessories

Yourkar 2 PCS Car AC Relay is a must-have car accessory for controlling electrical equipment. It works with AC and starter systems in your vehicle.

Made of high-quality brass, it resists corrosion and ensures long-lasting use. It handles high voltage and current efficiently, keeping connections secure.

Easy to carry and install, it fits ordinary cars perfectly. Works with air conditioning, lights, and fans. A reliable choice for your car’s needs.

Pros Cons
  • Fast and stable power control
  • Strong brass build for long life
  • Quick response to AC signals
  • Simple plug‑in use
  • Fits many car systems
  • No installation guide included, making setup tricky for beginners.
  • Limited compatibility with non-standard car electrical systems.
  • Small size may lead to easy misplacement during installation.

Perfect For:

This product is perfect for drivers who want steady power and smooth performance in their car. It suits anyone who needs a simple, strong, and easy-to-use relay for many parts of their vehicle.

Ready to Purchase?

9. 4RD93168001 Relay (Pack of 4) – 12V 40A Automotive Waterproof Relay – Replacement for Hella 4RD 931 680-01, 007903001, 931680011

4RD93168001 Relay (Pack of 4) - 12V 40A Automotive Waterproof Relay - Replacement for Hella 4RD 931 680-01, 007903001, 931680011

The 4RD93168001 Relay is a direct replacement for Hella mini relays. It fits perfectly and works just like the original.

This relay handles 40 amps at 12 volts, making it ideal for cars, boats, and machines. Its waterproof design keeps it safe from moisture and dust.

Comes in a 4-pack, easy to install, and ready to use.

Pros Cons
  • Direct replace for Hella relays—no modification needed.
  • Handles up to 40 A at 12 V for heavy loads.
  • Waterproof seal protects against rain, dust, and corrosion.
  • Pack of four: instant spare and future backup.
  • Fits engine, marine, and industrial systems easily.
  • No wiring harness included, requires extra purchase for some setups.
  • Pack of 4 may be more than needed for single replacements.
  • No instructions provided, might confuse first-time installers.

Perfect For:

This 4-pack of 12V 40A waterproof relays is perfect for anyone needing a reliable replacement for Hella relays in cars, boats, or industrial equipment. It’s easy to install and works great in tough conditions.

Ready to Purchase?

10. Relay 15328866 (Set of 4) – 12VDC 20A 4-Pin High-Power SPDT Relay – Multi-Use Replacement for GM, GMC, Buick, Chevy Trucks & Cars

Relay 15328866 (Set of 4) – 12VDC 20A 4-Pin High-Power SPDT Relay – Multi-Use Replacement for GM, GMC, Buick, Chevy Trucks & Cars

Relay 15328866 gives strong, steady power in a small, easy-to-use part. It fits many GM cars and trucks and drops right into place.

It runs 12VDC/20A loads with ease. It works for lights, pumps, and more. It stays firm in heat and cold.

Pros Cons
  • Plug‑in design: tool‑free, instant replacement.
  • 20A power: runs fuel pumps, AC, headlights.
  • GM fit: matches many Chevy, GMC, Buick models.
  • Heat‑resistant: works from -40°C to +125°C.
  • Rugged: durable contacts for truck use.
  • Limited to GM vehicles (1995-2011), not universal.
  • No included wiring harness or mounting kit.
  • High-power use may shorten lifespan in extreme conditions.

Perfect For:

This Relay 15328866 is perfect for GM vehicle owners who need a reliable, high-power replacement for their fuel pumps, headlights, or A/C compressors. It’s easy to install and built tough for trucks and off-road use.

Ready to Purchase?

Buying Guide

Automotive relays are key parts that keep your car running smoothly. They control power flow to systems like lights, fans, and starters. Choosing the right relay ensures your car works reliably and safely.

Finding the perfect automotive relay replacement can feel overwhelming, but we’re here to help. Our guide makes it easy to pick the best option for your needs. Whether you need a compact, waterproof, or high-power relay, we’ve got you covered.

Here’s what to consider when buying:

  • Compatibility: Make sure the relay fits your car’s make and model. Check the pin configuration and voltage rating for a perfect match.
  • Amp Rating: Choose a relay with an amp rating that meets your needs. Stay 10-15% below its limit for safety.
  • Durability: Look for relays made with strong materials that can handle heat, moisture, and daily use.
  • Ease of Installation: Pick a relay that’s easy to install, especially if you’re doing it yourself.
  • Waterproof Design: If your car is often exposed to moisture, choose a waterproof relay for extra protection.
  • Brand Reputation: Go for trusted brands known for quality and reliability.
  • Price and Value: Compare prices to find a relay that offers great value without sacrificing quality.

With these tips, you’ll find the perfect automotive relay for your vehicle. Drive with confidence knowing your car is in good hands.