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Upgraded 80A main relay for NA/NB

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Upgraded 80A main relay for NA/NB
4 Review(s)

Availability: In stock

Customer Reviews 4 item(s)

4 Item(s)

Exactly what I needed.
Fixed my issue immediately! Normal day drive turned into a tow after parking for a bit. Car is a 94 and has around 200k and is supercharged (extra heat).

Naturally I pulled the fuel pump first and generally took the car apart. No power was getting to the ECU or the fuel pump.

PRO TIP: Turn the ignition on, if you don't see the ECU and ABS light up on the dash then this will fix the issue.
Review by Andre / (Posted on 11/13/2019)
SMP Relay
Unfortunately, Jason's advice on the SMP RY288 is incorrect. That relay is rated at 20 amps.
Review by Fourvalve / (Posted on 8/10/2018)
Save your money
I know this is a Denso relay; and thusly, the OEM replacement, but SMP makes the RY288, which a direct replacement for this, and is $25 cheaper on RockAuto.
Review by Jason / (Posted on 4/13/2017)
Replacement instructions
This is the main relay. 80 amps. Everything else depends on this. If you have no power in the fuse box, this is a good place to start. Location is in the fuse box. For removal instructions, try this URL. There three clips that hold the relay in place. Two on the short sides one on the 'engine' side. One of these can be released with a small screw driver. The others come lose by wiggling the component side to side. I know that's not very satisfying, but Mazda did not intend for this part to be replaced very often. A little 'dielectric grease' on the contacts is a good idea, going back in.
Review by Maneki Neko / (Posted on 3/16/2017)

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