# Nitrile o-rings

**URL:** <https://forums.speedlife.net/t/nitrile-o-rings/47827>\
**Category:** NYSpeed Automotive\
**Created:** [May 2, 2008, 5:41pm UTC](https://forums.speedlife.net/t/nitrile-o-rings/47827 "2008-05-02T17:41:59Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![black\_vengeance](https://avatars.discourse-cdn.com/v4/letter/b/dfb087/32.png) [@black\_vengeance](https://forums.speedlife.net/u/black_vengeance)\
**Post date:** [May 2, 2008, 5:41pm UTC](https://forums.speedlife.net/t/nitrile-o-rings/47827/1 "2008-05-02T17:41:59Z")

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Anyone know where I might be able to find nitrile o-rings? I need to rebuild one of my rear calipers and need o-rings that resist brake fluid. Tried rebuilding it before with a rubber o-ring, but it only lasted about 3 months.

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**Author:** ![Carnut](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/carnut/32/7590_2.png) [@Carnut](https://forums.speedlife.net/u/Carnut)\
**Post date:** [May 2, 2008, 6:06pm UTC](https://forums.speedlife.net/t/nitrile-o-rings/47827/2 "2008-05-02T18:06:05Z")

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harbor freight has a nitrile o ring set.

If you are talking about the square cut seal that goes on the piston of the caliper it should be brake fluid resistant. Otherwise get an OEM one from the dealer.

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**Author:** ![Violator](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/violator/32/7278_2.png) [@Violator](https://forums.speedlife.net/u/Violator)\
**Post date:** [May 2, 2008, 6:06pm UTC](https://forums.speedlife.net/t/nitrile-o-rings/47827/3 "2008-05-02T18:06:39Z")

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Dealers sell brake caliper rebuild kits, so do some parts stores

Paintball guns use nitrile O rings but you probably wont find the right size

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**Author:** ![black\_vengeance](https://avatars.discourse-cdn.com/v4/letter/b/dfb087/32.png) [@black\_vengeance](https://forums.speedlife.net/u/black_vengeance)\
**Post date:** [May 2, 2008, 7:40pm UTC](https://forums.speedlife.net/t/nitrile-o-rings/47827/4 "2008-05-02T19:40:14Z")

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Its a standard type o-ring that goes on the bottom of the threaded rod for the parking brake mechanism. I’ve also got the seal kit on order from the dealer.

> [@Carnut](#):
>
> harbor freight has a nitrile o ring set.
> 
> If you are talking about the square cut seal that goes on the piston of the caliper it should be brake fluid resistant. Otherwise get an OEM one from the dealer.

Thanks, i’ll be heading there tomorrow then.

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**Author:** ![reliant\_turbo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/reliant_turbo/32/7189_2.png) [@reliant\_turbo](https://forums.speedlife.net/u/reliant_turbo)\
**Post date:** [May 4, 2008, 7:38pm UTC](https://forums.speedlife.net/t/nitrile-o-rings/47827/5 "2008-05-04T19:38:46Z")

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mcmaster carr?

Brian

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**Author:** ![black\_vengeance](https://avatars.discourse-cdn.com/v4/letter/b/dfb087/32.png) [@black\_vengeance](https://forums.speedlife.net/u/black_vengeance)\
**Post date:** [May 4, 2008, 8:57pm UTC](https://forums.speedlife.net/t/nitrile-o-rings/47827/6 "2008-05-04T20:57:30Z")

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I picked some up at harbor freight. Hopefully they work better than the old one did.