Features:

  • Brand new heavy duty 4-prongs SPST relays
  • Use optional Relay Harness, or female Crimp Connectors
  • High 40A coil capacity- able to handle those high current applications with ease
  • Package Include: 2 x 40A 4-Pin 12V Vehicle Relays
  • Mechanical life of 10,000+ cycles
Excellent Value, Great Construction and Functionality

Excellent value! A whole ten pack of high amperage relays for not much more than what you'd pay for a single one at electronics and auto parts stores. I tested all the relays with a 9V battery across the coils and a multimeter, every single one works correctly and there are absolutely no defects in the plastic housings, pins, or internal components. Works perfectly for my custom PDM for my drag car, uses standard 1/4" female spade connectors for the pins.

Works for TC35D glow plug relay

I had a heck of a time getting the right part for my 2001 New Holland TC35D when my glow plug circuit was going faulty (GP light would come on during operation then later wouldn't come on at all when starting). I replaced the glow plug timer (like $90) and no change (very disappointed, I should have tested with voltmeter while applying 12 volts like I did later). Then I ordered the wrong relay. I then ordered the above relays and installed and it works just great, very satisfying. To fix your faulty glow plug circuit: take off the side panel (4 bolts). Look at the relay set. On the lower set of four the left one is the glow plug timer - test with voltmeter and 12 volts power to see if continuity occurs between two of the pins for five seconds after power is applied then turns off. Then test the relay, see if 12volts will create continuity between two of the pins. In my case the relay was faulty and was cheap fix, easy if I had gone that route first. Best of luck and enjoy that sweet tractor.

Work as advertised.

Once I figured out that they had to have at least 12 volts to engage they worked great, I was hoping I could get away with less volts to flip them on, but it was my fault for hoping... They work great and I tested them repeatedly so far so good I would repurchase, I might've should've bought more they work so easy...

Both of them work great have had one hooked up for months no tissues

These worked just fine when hooking up an LED light bar to run with the high beams oh my Jeep. Combine this with a three-way switch and you will not be disappointed.

Can’t get any better!

Haven’t actually got the car started yet that I purchased these for, but they’re automotive relays and as long as they’re wired properly, it should have no issues. The blades are easily labeled as to what number they are. These fit snuggly and make a great connection with the matching Ehdis relay sockets. Perfect for a DIY wire harness project.

These are working great

I am using these in an a 12V LED installation. The 12V activated coil is throwing attached to the motion sensor is triggering the switch for a 9 Amp string of lights. Very fast, you hear the click but you see no delay. Easy to install. You need to understand electrical illustrations if you have never wired one before.... look online for a little video if you need help.

Replaced all my old Bosch relays

Replaced all the 30 year old relays with these. Had them in the car for over a year and they work great.

Great for my application

I used this relay with a 12V accessory signal for my cooling fans in the car audio build. Online info identified terminals and their use. This can tolerate a pretty high amperage. Sturdy.

good 4 pin relays

fixed my HID lights not working

No complaints

Used to switch on a Dashcam when I start my car. Terminals well labeled and diagram is very easy to read. Large pins make connections easy.

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