Best AC Relays for Cars

Looking for the best AC relays for your car? We’ve tested and reviewed the top 10 options to help you find the perfect fit for smooth and safe driving.

AC relays are essential parts for your car’s electrical system. They control power flow to key components like AC compressors, fans, and lights. Choosing the right relay ensures your car runs smoothly and safely.

We’ve tested and reviewed the best AC relays to help you make a smart choice. Whether you need a quick fix or a long-lasting solution, our guide has you covered.

List of Top 10 AC Relays

Title	Best For	Price
Relay G8HL-H71 (Set of 2), 39794-SDA-A03 39794-SDA-A05 12VDC Automotive Relay – Compatible for 2003-2014 Accord 2006-2014 Civic 2007-2014 Acura MDX CR-V	This relay set is a great fit for your Honda. It is easy to fix and works well.	View on Amazon (paid link)
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 is perfect for car owners and DIY fixers who need a simple, strong relay for AC, fans, lights, or starter parts. It is also a good fit for people who want easy install and steady power control.	View on Amazon (paid link)
2PCS Electromagnetic Power Relay, 8-Pin 10A 24 AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC – MY2NJ 2PCS [Applicable for DIN Rail System]	This 24V AC relay set is great for DIY projects. It works well for home or shop use.	View on Amazon (paid link)
HHZL AC Relay G8HL-H71 for Honda 4 Pins AC Compressor Starter Relay for Blower Motor/Fans/Clutch/Headlight/Air Conditioning Compatible with Accord Civic Element CR-V CR-Z(2PCS)	This AC relay is perfect for car owners who need a reliable replacement for their Honda’s AC compressor starter relay. It’s easy to install and works great for headlights, audio systems, and more.	View on Amazon (paid link)
EPLZON NT90-AC120V-10X Power Relay AC 120V Coil 120 VAC 30A 40A SPDT(1NO 1NC) with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay(Pack of 2pcs)	This EPLZON Power Relay is perfect for anyone who needs a reliable and easy-to-use solution for controlling motors, appliances, or switches. It’s ideal for home projects, workshops, or small businesses needing safe and efficient power management.	View on Amazon (paid link)
Dreyoo 1 Pack 24V Fan Relay, 90-380 Isolation Relay AC Switch SPST with UL Certification Compatible with Goodman HVAC Furnace Blower Humidifier Blower Heat Sequencer	This 24V fan relay is perfect for homeowners and HVAC technicians who need a reliable and easy-to-install solution for their Goodman HVAC systems, furnaces, or humidifiers. It’s great for anyone looking to replace or upgrade their blower or fan control with a waterproof, heavy-duty relay.	View on Amazon (paid link)
Tnisesm 2PCS Power Relay AC120V Coil, 30A SPDT(1NO 1NC) with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay NT90-AC120V-10X	This product is perfect for DIY builders and tech pros who need a strong, simple relay for quick setups. It works great for anyone who wants fast wiring and steady power control without any fuss.	View on Amazon (paid link)
2PCS Electromagnetic Power Relay, 8-Pin 10A 110/120 AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC – MY2NJ 2PCS [Applicable for DIN Rail System]	This 2PCS Electromagnetic Power Relay is perfect for anyone working with household appliances, car starters, or industrial systems. It’s easy to use and fits DIN rail setups, making it ideal for DIY projects or professional installations.	View on Amazon (paid link)
SYudwen 2 Pack AC Relay Air Conditioning 12V 4 pin Replacement for 90987-02027 90080-87026 Compatible with Toyota Lexus and Scion 1997-2014 Vehicles for Automotive Electrical Systems	This AC relay is perfect for car owners and mechanics who want a quick, reliable fix for their Toyota, Lexus, or Scion vehicles. It is easy to install and keeps your air conditioning running cool and smooth.	View on Amazon (paid link)
HYXUAN 5 Pack AC Relay G8HL-H71 Power Relay Assembly Compatible with 2003-2014 Accord 2006-2014 Civic 2007-2014 Acura MDX CR-V	This kit is perfect for car owners who need to fix old parts fast. It works well with many popular models and keeps your car running smoothly.	View on Amazon (paid link)

Detailed Reviews

These top AC relays are picked with care to give you clear, trusted guidance. Each one is checked for performance, value, and real‑world use. You’ll feel confident and curious to explore the full list.

1. Relay G8HL-H71 (Set of 2), 39794-SDA-A03 39794-SDA-A05 12VDC Automotive Relay – Compatible for 2003-2014 Accord 2006-2014 Civic 2007-2014 Acura MDX CR-V

This set has two new relays. It fits many car models. Use it for quick fixes.

These parts work with Honda. They also fit Acura cars. They solve power relay issues.

The parts last a long time. They save you money.

Pros	Cons
Powers many car parts like A/C and lights. Easy to install, no special tools needed. Works well for Honda and Acura models. Affordable and reliable for daily use.	Limited to specific vehicle models and years. No warranty or return policy mentioned. Basic design, lacks advanced features or upgrades.

Perfect For:

This relay set is a great fit for your Honda. It is easy to fix and works well.

Ready to Purchase?

View Price on Amazon (paid link)

2. 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

The Yourkar 2 PCS Car AC Relay is a must-have car accessory. It helps control electrical equipment in your vehicle.

Made from high-quality brass, it resists corrosion and ensures long-lasting use. It works well even under prolonged use.

Easy to carry and simple to install, it fits ordinary cars. It’s flexible and works with air conditioning, lights, and more.

Pros	Cons
Fix your AC fast and easy. High quality for long life. Just plug and play now. Save cash on car repairs. Reliable power for your ride.	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 is perfect for car owners and DIY fixers who need a simple, strong relay for AC, fans, lights, or starter parts. It is also a good fit for people who want easy install and steady power control.

Ready to Purchase?

View Price on Amazon (paid link)

3. 2PCS Electromagnetic Power Relay, 8-Pin 10A 24 AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC – MY2NJ 2PCS [Applicable for DIN Rail System]

2PCS Electromagnetic Power Relay, 8-Pin 10A 24 AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ 2PCS [Applicable for DIN Rail System]

This 2-piece electromagnetic power relay is a versatile tool for various applications. It’s easy to use and fits DIN rail systems with included self-tapping screws.

The LED indicator shows coil status, and the red mechanical indicator confirms relay activation. It handles 10A and works with 24VAC coils.

Pros	Cons
Widely used in homes and industries for reliable control. LED indicator shows power status at a glance. Easy installation with DIN rail and self-tapping screws. High capacity handles 10A for heavy-duty applications.	24VAC coil may not fit all systems. 10A limit can be too low. LED and socket add extra cost.

Perfect For:

This 24V AC relay set is great for DIY projects. It works well for home or shop use.

Ready to Purchase?

View Price on Amazon (paid link)

4. HHZL AC Relay G8HL-H71 for Honda 4 Pins AC Compressor Starter Relay for Blower Motor/Fans/Clutch/Headlight/Air Conditioning Compatible with Accord Civic Element CR-V CR-Z(2PCS)

HHZL AC Relay G8HL-H71 for Honda 4 Pins AC Compressor Starter Relay for Blower Motor/Fans/Clutch/Headlight/Air Conditioning Compatible with Accord Civic Element CR-V CR-Z(2PCS)

This relay set gives your car strong, steady power control. Each piece fits key models like Accord, Civic, Element, CR‑V, and CR‑Z with ease. The size is small, and it drops right into place.

The relay uses silver alloy contacts and copper coils for fast response. It handles 10A–30A with smooth, stable flow. The shell is tough, tight, and waterproof for long use.

Install fast. Run smooth. Stay safe.

Pros	Cons
Perfect fit for Honda models like Accord and Civic Fast and stable current switching response Durable and waterproof plastic shell Protects wiring from overload and short circuits Easy plug and play installation, no tools needed	Check fit before you buy. Only 2 pieces in the pack. Basic part, not a full fix.

Perfect For:

This AC relay is perfect for car owners who need a reliable replacement for their Honda’s AC compressor starter relay. It’s easy to install and works great for headlights, audio systems, and more.

Ready to Purchase?

View Price on Amazon (paid link)

5. EPLZON NT90-AC120V-10X Power Relay AC 120V Coil 120 VAC 30A 40A SPDT(1NO 1NC) with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay(Pack of 2pcs)

EPLZON NT90-AC120V-10X Power Relay AC 120V Coil 120 VAC 30A 40A SPDT(1NO 1NC) with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay(Pack of 2pcs)

The EPLZON NT90-AC120V-10X Power Relay is a compact and reliable solution for your electrical needs. It operates at AC 120V and handles up to 30A SPDT. This mini relay comes with 10 quick-connect terminals for easy installation.

It’s ready to use right out of the box and works with various applications, like motors, fans, and control panels. Its flange mounting ensures a secure fit in any setup.

Pros	Cons
Compact size, big power – fits anywhere, handles 30A SPDT. Ready to use – comes with quick connect terminals, no hassle. Versatile applications – works for motors, ACs, and more. Durable design – epoxy sealed option for tough environments.	Wires may be too short. Plastic case can break fast. Relay makes a loud click.

Perfect For:

This EPLZON Power Relay is perfect for anyone who needs a reliable and easy-to-use solution for controlling motors, appliances, or switches. It’s ideal for home projects, workshops, or small businesses needing safe and efficient power management.

Ready to Purchase?

View Price on Amazon (paid link)

6. Dreyoo 1 Pack 24V Fan Relay, 90-380 Isolation Relay AC Switch SPST with UL Certification Compatible with Goodman HVAC Furnace Blower Humidifier Blower Heat Sequencer

Dreyoo 1 Pack 24V Fan Relay, 90-380 Isolation Relay AC Switch SPST with UL Certification Compatible with Goodman HVAC Furnace Blower Humidifier Blower Heat Sequencer

This relay gives you simple, steady control for your blower or fan. It is compact, quiet, and easy to use.

It fits many HVAC systems. It installs fast. It works with confidence.

Pros	Cons
Protects circuits with 24VAC, 12FLA, 1 pole replacement relays. Works with Goodman blower, HVAC, and more appliances. UL Certified, waterproof, and heavy-duty for reliable performance. Compact and quiet, with easy 6-wire installation.	Limited fit for some HVAC setups. Wiring may be hard for new users. Single pack gives no spare part.

Perfect For:

This 24V fan relay is perfect for homeowners and HVAC technicians who need a reliable and easy-to-install solution for their Goodman HVAC systems, furnaces, or humidifiers. It’s great for anyone looking to replace or upgrade their blower or fan control with a waterproof, heavy-duty relay.

Ready to Purchase?

View Price on Amazon (paid link)

7. Tnisesm 2PCS Power Relay AC120V Coil, 30A SPDT(1NO 1NC) with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay NT90-AC120V-10X

This power relay uses a strong coil. It works with AC 120V power.

It can handle a 30A load. The flange mount makes it easy to fix.

You get ten wires in the pack. These quick connect parts save time. This mini relay is a good choice.

Pros	Cons
Powerful 30A SPDT relay for heavy-duty applications. Easy installation with quick-connect terminal wires. Versatile use with AC120V coil voltage. Durable design with epoxy-sealed options available.	Needs AC 120V power only. Wires may be too short for some setups. Large size may not fit tight spaces.

Perfect For:

This product is perfect for DIY builders and tech pros who need a strong, simple relay for quick setups. It works great for anyone who wants fast wiring and steady power control without any fuss.

Ready to Purchase?

View Price on Amazon (paid link)

8. 2PCS Electromagnetic Power Relay, 8-Pin 10A 110/120 AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC – MY2NJ 2PCS [Applicable for DIN Rail System]

2PCS Electromagnetic Power Relay, 8-Pin 10A 110/120 AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ 2PCS [Applicable for DIN Rail System]

The 2PCS Electromagnetic Power Relay is a versatile tool for many uses. It works with household appliances and industrial systems. Its 8-pin design fits DIN rail systems easily.

This relay has a 110/120V AC coil and handles 10A loads. It includes a socket base and LED indicator. The DPDT setup offers 2NO 2NC contacts for flexibility.

The red mechanical indicator shows relay status clearly. The LED signal lamp helps check coil power. These features make it reliable and easy to use.

Pros	Cons
Widely used in homes and industries for reliable motor control. Easy installation with DIN rail and self-tapping screws. LED indicator shows power status at a glance. Red mechanical indicator confirms relay activation instantly.	No built-in surge protection for sensitive circuits. Requires additional wiring for complex setups. LED indicator may drain power in standby mode.

Perfect For:

This 2PCS Electromagnetic Power Relay is perfect for anyone working with household appliances, car starters, or industrial systems. It’s easy to use and fits DIN rail setups, making it ideal for DIY projects or professional installations.

Ready to Purchase?

View Price on Amazon (paid link)

9. SYudwen 2 Pack AC Relay Air Conditioning 12V 4 pin Replacement for 90987-02027 90080-87026 Compatible with Toyota Lexus and Scion 1997-2014 Vehicles for Automotive Electrical Systems

SYudwen 2 Pack AC Relay Air Conditioning 12V 4 pin Replacement for 90987-02027 90080-87026 Compatible with Toyota Lexus and Scion 1997-2014 Vehicles for Automotive Electrical Systems

The SYudwen 2 Pack AC Relay is perfect for Toyota, Lexus, and Scion vehicles from 1997 to 2014. It replaces OEM parts like 90987-02027 and 90080-87026. This 4-pin relay ensures easy installation for your car’s electrical system.

Made from high-quality materials, this relay is reliable and durable. It meets OEM standards, just like the original part.

Fix A/C issues and enjoy cool air again. This relay works for A/C compressors, lights, and more. Get two relays in one convenient package.

Pros	Cons
Fits many To-yo-ta and L-exus models Strong build for long use Stops A/C issues fast Works for many car parts Easy 4‑pin install	May not fit all vehicle models. Relays can wear out with heavy use. Requires basic knowledge for correct installation.

Perfect For:

This AC relay is perfect for car owners and mechanics who want a quick, reliable fix for their Toyota, Lexus, or Scion vehicles. It is easy to install and keeps your air conditioning running cool and smooth.

Ready to Purchase?

View Price on Amazon (paid link)

10. HYXUAN 5 Pack AC Relay G8HL-H71 Power Relay Assembly Compatible with 2003-2014 Accord 2006-2014 Civic 2007-2014 Acura MDX CR-V

This HYXUAN 5 Pack AC Relay fits many Honda and Acura models. It works with AC compressors, fan motors, starters, and headlights. These relays are made for reliable performance.

Each relay is strong and durable. They control important parts like horns, fog lamps, and fuel pumps. You get five relays in one convenient pack.

Installation is quick and easy. Your car will run smoothly with these parts.

Pros	Cons
Wide Compatibility with popular Honda and Acura models. Versatile Use for A/C, lights, motors, and more. Exact Match for OEM part numbers, ensuring perfect fit. 5-Pack Value for multiple repairs or replacements.	No installation guide included, might need expert help. Limited to specific car models, check compatibility first. No warranty details provided, buy with caution.

Perfect For:

This kit is perfect for car owners who need to fix old parts fast. It works well with many popular models and keeps your car running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

AC relays are key parts for your car’s electrical system. They keep your AC, lights, and fans running smoothly.

Choosing the right AC relay can save you time and money. Our guide makes it easy to find the best fit for your car.

Here’s what to consider when buying:

Compatibility: Check if the relay fits your car’s make and model. Wrong parts can cause issues.
Durability: Look for relays made from high-quality materials like brass or silver alloy. They last longer.
Load Capacity: Match the relay’s power rating to your car’s needs. Overloading can damage parts.
Ease of Installation: Choose relays with quick-connect terminals or simple designs. They save time.
Waterproof Design: Go for relays with tight, waterproof shells. They work well in all weather.
Indicator Lights: Relays with LED indicators help you check their status easily.
Price and Value: Compare prices and features. A good deal balances cost and quality.

With these tips, you’ll find the perfect AC relay for your car. Drive safely and smoothly!