The 9 Best Auto Relays (2022 reviews)

Online Led makes beautiful and outstanding relays with classical and higher-grade materials. The Online Led Fuse Socket comes with a fuse holder just makes sense. The standard bosch style 4 pin relay fits directly into existing relay boxes and simplifies the design and maintenance of custom wiring jobs. And, this works as expected, is switching currents and it worked perfectly.

Lastly, the online led fuse socket includes 6 relays, 6 relay harnesses, and 6 blade fuses.

Almost all customers agree that the relay can get a bit warm due to the magnetic coil inside. Moreover, they strongly agree that the relay is one ground wire, one trigger wire (from switch) one constant wire from a power supply ( battery, circuit breaker) and one output wire for your light or lights. And, a few strongly agree that the relay is already on a fused line, then there may be a few better options as these have fuses integrated into them. In short, at the price, they believe that they got a steal of a deal with it.

Customers also found that its wise to buy a auto fuse switch adapter and auto relay, along with this relay.

Top Customer Quotes:

Bosch style 4-pin spst (single pole single throw) relay.
This is easy to identify when paired with a fuse that lights up when blown.
Easy and complete way to add aux equipment without cutting into factory harness.
Ever tried to pull the back terminal off a firewall mounted relay ?.

Best For Lights: Epauto Auto Relay

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Compared with other relays in this category, the Epauto Auto Relay has a convenient design. The epauto auto relay is strong and it makes for very fast shipping. Make sure this fits by entering your model number. Moreover, it works great and it is made for exact fit.

The relay is professional and it is designed for a great price. Also, the relay is great for ambient temperature, is mechanical and it is made for good value. Above all, the epauto auto relay is switching current, works well with electric fuel pumps and it is destructive.

Almost all buyers found that the relay makes them easy to work with. Further, they also found that the relay is great for lights or other hiamp switching. Moreover, a few say that this is because the relay coil is an inductor, and when an inductor is switched off it ca n't change its current instantly, instead producing a spike. Overall, many customers have used the epauto auto relay for more than a few months without any complaints, and it shows no sign of giving up.

Few customers got auto fuse switch adapter, along with the relay.

Top Customer Quotes:

This is used for a variety of automotive things and works great.
This fits right on Dorman fuse block.
This is placed in the power circuit of the camera.
Safety ul listed 6" wires with pigtail leads for the main contact.

Best For Easy Wiring: Epauto Wire Harness

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We would, of course, be remiss if we didn't mention Epauto Wire Harness for daily usage. The epauto wire harness comes with long pigtails, has various guick shipping and it can wait for a great deal. Make sure this fits by entering your model number. In addition, this can be used for customer service and it works perfectly.

The relay comes with a great package, is made for good value and it is durable. Also, it works as expected and it is perfect for great quality. Finally, the epauto wire harness allows for very fast shipping, is designed for easy wiring, It comes with clear wiring instructions and has an SPDT design.

Almost all customers quickly discovered that the relay is made at a good price. And, they also found that the relay looks like it is good quality and is definitely priced right. In addition, a few say that the relay is easy to wire and each relay has a writing diagram on it.

Customers say that buying a auto fuse switch adapter, with this relay made their life much easier.

Top Customer Quotes:

This is mechanical, it is designed for a great price and has a mounting style.
Package include: 5 relays + 5 relay sockets with wires.
This would be perfect with fast shipping and it is easy to mount.
This is used for almost any application.

Best For Great Price: Nilight Auto Relay

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Nilight offers a variety of relay for personal choice and yet maintains quality in all the variants. The night auto relay is destructive, is really nice, it is good for premium quality and has a mounting style. Make sure this fits by entering your model number. The relay sockets come with different colors for loads / accessories, simple and convenient wiring.

Above all, the night auto relay is mechanical and it is durable.

Almost all customers agree that the relay is a direct fit and worked as intended. Further, they strongly agree that the relay is a hot location and exposed to rain at times. Further, a few say that the size and typically located in the fuse box are more common.

Customers also discovered that its wise to buy a auto fuse switch adapter, along with this relay.

Top Customer Quotes:

This is wired into the stebel air horn circuit.
This is a fair way to get them along with the sockets.
The manufacturer offers a kit for this @ about $ 60.00.
This is switching current, is very durable and it is functional.

Best For Oil Resistance: Online Led Auto Relay

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The Online Led Auto Relay's high-end materials make sure that it ages well with use. The online led auto relay can be used as a single, normally open or normally closed relay, or in more complex setups, like a custom power lock and window build. You’ve worked hard on your project, protect it with waterproof relays. These 12v 5-pin relays are rated to handle 30a on normally closed pin 87a and 40a on normally open pin 87.

Most importantly, the online led autorelay works great and has a mounting style.

Most buyers agree that the relay is not a must for you to utilize both the NC and no wires. And, they say that the relay looks to be a good quality relay. Moreover, a few say that the relay only requires 150ma to be triggered, which is 0.15a. To sum up, many customers have used the online led auto relay for more than a few months without any issues, and it shows no sign of giving up.

Top Customer Quotes:

User manual available for download under product information details.
This is good for oil resistance and it is durable.
Bosch style 5-pin SPDT (single pole double throw) relay.
This is the best way to get/go with power direct from the battery.

Best For Car Sound Systems: Glarks Auto Relay

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The Glarks Auto Relay is capable of outshining several other relays featured in this list in overall features for the price point. The glarks auto relay comes with a mounting tab for easy installation. Including a 10 pack 5-pin SPDT(SINGLE pole double throw) electrical relay switch packed in a plastic box. These relays have a universal application and can be used in automotive setups, car sound systems, security systems, and various other applications.

Lastly, the glarks autorelay is perfect for high quality and has a mounting style.

Almost all buyers opine that the relay is designed for 12 volts dc. Also, a few say that the relay is easy to use and excellent, recommended by the seller. And, a few also found that the relay is designed for that, and 240v could require switching 2. In short, most customers call the relay suits best, and no one questions it.

Customers say that getting a auto relay, along with relay is useful.

Why We Like This:

This is rated current and it worked perfectly.
Good investment for the long term.

Best For Life Expectancy: Ehdis Auto Relay

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The Ehdis Auto Relay should be able to handle its purpose and duties with ease. The ehdis auto relay comes with a red copper binding post. Make sure this fits by entering your model number. In addition, the relay switches currents and it is suitable for temperature range.

Most importantly, the ehdis auto relay works great and it is great for a great price.

Most buyers quickly discovered that the relay can be used in the fabrication of a lithium ion cell battery. Also, they strongly agree that this relay does not appear to be rated for continuous duty.

Why We Like This:

Ensuring the maximum electric current can be transferred, for multi-battery system forklift engineering automotive.
This is mechanical, worked perfectly and it works perfectly.
Rated voltage 12vdc, maximum instantaneous through current 500a. Work long time maximum 200a.
Prevents primary battery discharge. Water resistant black phenolic plastic.

Best For Temperature Range: Ehdis High Current Relay

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Next on the list, we've got yet another relay that manages to win our hearts. It's the Ehdis High Current Relay and it's widely considered as the relay that has the most suitable features. The ehdis high current relay is mechanical and it is durable. Make sure this fits by entering your model number. Further, this is ideal for universal 12v applications.

Most importantly, the high current relay is great for high quality and it is good for life expectancy.

One customer says - "Remove the control current and the relay switches off. ". Almost all customers quickly discovered that the relay works well as a normally-open relay. Consequently, customers were very happy to recommend it to friends and families.

Why We Like This:

Voltage: 12v dc rated current:120a terminal quantity: 4.
This is switching current, is great for temperature range and it works as advertised.
Heavy duty make or break (on/off) relay ideal for universal 12v applications.
A 5" extra heavy duty 120a split charge relay.

Best For High Power: Walfront Auto Relay

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Walfront offers a variety of relays for personal choice and yet maintains quality in all the variants. The Walfront Auto Relay is made of water resistant black phenolic plastic. Make sure this fits by entering your model number. The main function of this product is to switch on, it can be used alone, it can also be connected to control use. Lastly, the walfront auto relay is switching current and it is rated current.

Why We Like This:

Good investment for the long term.
Delivers what they promise.