R&R 100 Master Cylinder / Booster

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Nardulli

GOLD Star
Joined
Jul 12, 2025
Threads
9
Messages
113
Location
St Louis, MO
My booster pump / accumulator / master cylinder has started making the dreaded 'I'm about to fail' noise. I have a brand new OEM unit in stock. Anyone done this job? Any tips / hints? Thanks in advance.
 
 
@OTRAMM has a good video on this:

Not much to it, just swap the part. Need to remove the charcoal canister to get access.

You'll want the gasket that goes between the master cylinder and the firewall (mine was 44785-60010). Also plenty of new fluid (00475-1BF03). I ordered (7) 12oz bottles to refill and flush the lines.

Note that one of the part numbers for the complete assemblies is apparently no longer available but all that changed was the 3-wire pigtail, so it necessities a pigtail swap.

This may all be covered in the big thread posted above.
 
Back
Top Bottom