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Jayga23 1991 KDX250SR Connecting Rod Bearing

Posted: 03:42 pm Oct 13 2025
by Jayga23
Hi. Hoping someone may pick this up still.. is the bottom Conrod bearing on the KX interchangable with the KDX SR?

Re: Hey kdx250 1991 SR model kx250

Posted: 03:49 pm Oct 13 2025
by KDXGarage
Look on the Impex Japan parts diagrams to match up part numbers.

Re: Hey kdx250 1991 SR model kx250

Posted: 03:57 pm Oct 13 2025
by Jayga23
Hi. Thanks for the swift reply.

I've ordered a aftermarket rod, and as already mentioned, the small end bearing is a different size. Both the KX and KDX sr part is no longer available. I'll check bottom bearing part numbers, and if both are the same then I'll assume this after market bottom end will be the same.

Re: Jayga23 1991 KDX250SR Connecting Rod Bearing

Posted: 04:25 pm Oct 13 2025
by KDXGarage
I split this off into a new thread.

What year KDX?? What make and model connecting rod?? Thanks

Re: Jayga23 1991 KDX250SR Connecting Rod Bearing

Posted: 04:52 pm Oct 13 2025
by Jayga23
Hi. It's a 92 KDX SR 250. I've now managed to source OEM parts for not that much more than the after market kit, had to purchase the rollers X16 and the retainer. Did some cross referencing, and it seems although the small end bearing is a different size than the KX, bottom bearing is the same on both machines, but bottom pin is different part numbers for both. After market kit is from Japan, no company name, just says performance part on the box.