Author Topic: O-ring sizes (Read 4070 times)

Rupp250 · « **on:** January 21, 2015, 04:22:23 PM »

I'm going to order some o-rings from McMaster. I know just measure them and order. Well I am at work and doing 16 hr days and want to get them ordered.

Anyone know the O-ring sizes for the Sphinx and Puma cylinder heads, exhaust flanges as well?

Heck maybe list the sizes for any o-rings. ESR silencer etc... Maybe it will help someone in the future.

mx250r91 · « **Reply #1 on:** January 22, 2015, 09:56:40 AM »

I ordered a bag of silicone o-rings for the ESR silencer a few years ago, -216 size.

http://www.mcmaster.com/#9396k37

And the aftermarket exhaust flanges for OEM cylinders use -134 o-rings. I'm not sure if the sphynx or puma use the same size.

http://www.mcmaster.com/#9396k155

08IRS · « **Reply #2 on:** January 22, 2015, 03:09:06 PM »

Quote from: mx250r91;49106

I ordered a bag of silicone o-rings for the ESR silencer a few years ago, -216 size.

www.mcmaster.com/#9396k37

And the aftermarket exhaust flanges for OEM cylinders use -134 o-rings. I'm not sure if the sphynx or puma use the same size.

www.mcmaster.com/#9396k155

Do you know if the aftermarket exhaust flange and the ESR flanges are the same?

Rupp250 · « **Reply #3 on:** January 22, 2015, 04:56:14 PM »

I do believe that the stock flange, ESR, and Sphinx are all the same size. The same exhaust fits on all of the. The Puma is larger I believe.

CR500R · « **Reply #4 on:** January 25, 2015, 10:31:56 PM »

Just wanted to bump this.

I'm also looking for the O-ring part # for my ESR 310 head and dome O-rings..