Master Cylinder Cap Diaphragm Question
Thread Starter
Pro
Joined: Apr 2002
Posts: 547
Likes: 5
From: Sauk Rapids MN
Master Cylinder Cap Diaphragm Question
I need to replace one of these on my 1985. Some websites have different part numbers for 1985; others say that this part is the same for 1984 - 1991. Can anybody tell me if the part is unique for 1985? I'm having a tough time finding just one. Thanks for any input! 
Team Owner
Joined: Jan 2003
Posts: 20,315
Likes: 245
From: Summerland B.C. Canada
My parts manual says that 84 and 85 shared the same diapragm, different number than 86-91 and 92-96.
GM # 14067535
Of course with GM, that doesn't mean $hit sometimes, they could all be the same.
GM # 14067535
Of course with GM, that doesn't mean $hit sometimes, they could all be the same.
Thread Starter
Pro
Joined: Apr 2002
Posts: 547
Likes: 5
From: Sauk Rapids MN
I may have to hunt some junkyards. I don't want to purchase an entire master cylinder to get this part, and I'm not having much luck on the internet in locating one, unless they were standard from 84-91.
Burning Brakes
Joined: Aug 2006
Posts: 780
Likes: 0
From: New Port Richey Florida
It looks like they take the same diaphragm 84-91 I have an 86 and it looks the same
Corvette - Corvette Master Cylinder Cap Diaphragm, 1984-1991
1984-91 (C4) Master Cylinder Cap Diaphragm
Corvette Master Cylinder Cap Diaphragm, 1984-1991
* Stock Replacement
* Use P/N A7513 1984-91 Brake Master Cylinder Cap To Fit In P/N 41120 Diaphragm
This stock replacement master cylinder cap diaphragm is manufactured by GM or by one of its authorized suppliers for use as a factory replacement part. You will find the fit, finish and function meets all GM specifications. Using stock replacement parts from Eckler's, such as this master cylinder cap diaphragm, is a sound investment in the restoration or repair of your Corvette.
Item# 41120
$12.99 ea.
Corvette - Corvette Master Cylinder Cap Diaphragm, 1984-1991
1984-91 (C4) Master Cylinder Cap Diaphragm
Corvette Master Cylinder Cap Diaphragm, 1984-1991
* Stock Replacement
* Use P/N A7513 1984-91 Brake Master Cylinder Cap To Fit In P/N 41120 Diaphragm
This stock replacement master cylinder cap diaphragm is manufactured by GM or by one of its authorized suppliers for use as a factory replacement part. You will find the fit, finish and function meets all GM specifications. Using stock replacement parts from Eckler's, such as this master cylinder cap diaphragm, is a sound investment in the restoration or repair of your Corvette.
Item# 41120
$12.99 ea.
Last edited by rich653; May 29, 2009 at 08:59 AM.
