RB20DET pulleys do not fit!

[rumorco]

Quick question for you guys!

I ordered a Godspeed (offbrand) pulley set for my RB20 and the crank pulley is loose, it is for a bigger shaft. I also ordered a pulley set RB26 and that did not fit either, the crank pulley didn't even have a keyway.. just spline. Why aren't they fitting, what is going on? I know I have a RB20DET.. why doesn't the Godspeed crank pulley fit? Are their different models? What should I search for when looking for my pulley?

I had the engine imported from Japan. It is a 1991 R32 RB20DET.

[Coolwhip]

All RB crank pulleys have the same bore diameter. And yes they require a key way not a spline install. Sounds like there might be an issue with the actual part.

[Ashchetum]

I don't mean to be rude but are you sure that the RB20 pulley is the same as the 25/26? I am in need of a new rb20 pulley and I literally can NOT find a replacement. The only one out there is this crazy expensive high performance part. I have read elsewhere that rb's have different pulleys.

[Coolwhip]

The pulleys are different but the bore size (the center section) is the same between the balancer.

The easiest way to summarize the differences is the offset of the power steering pump pulley.

We should still have good condition used ones in stock if you need a stock replacement. Email me at [email protected]