master cylinder and hydroboost seal needed

Joined
Nov 29, 2009
Messages
10,258
Nobody sells the seal by itself. I bought a whole hydro boost pump and it only came with two orings that go in the lines. Not the outer seal.

20251019_125556.webp


20251019_125551.webp
 
Last edited by a moderator:
I got it all back together. Oh man the brake pedal feels so much better. Does not seem to be leaking now. That brake light switch is supposed to be one time use, but the brake lights worked fine still. Saved myself $600.00. Only spent like $25 on that little seal kit from boost auto. They should have included that seal pictured above though
 
It's just a dust/debris seal in Hydro-Boost applications...Are you saying you spent $25 for the 2 fitting O-rings?
I think that's what it was. It was one seal inside and the figure 8 on the outside. The seal for the master cylinder got reused and the orings for the two flared lines got reused. Better than $600 to pay someone else to do it.
 
It's just a dust/debris seal in Hydro-Boost applications...Are you saying you spent $25 for the 2 fitting O-rings?
Oops let me clarify. I bought just the seal kit a few months back to reseal the one thats on the truck, but also decided to buy a whole remanufactured unit at oreillys just in case that pump was all messed up. I'll be returning the pump as the reseal seemed to be ok
 
Back
Top Bottom