I'm looking for the part no for the brake master cylinder fitted to a 1989 RHD 90q20v with ABS. I can only find info on 441 611 021 A which is described as for LHD. Does anyone know what's the difference between LHD and RHD master cylinders?
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Brake master cylinder 7A 90
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Originally posted by John. View PostIt could be something as simple as the 2 bleed nipples being on different sides of the MC depending on whether they're to be fitted to a LH or RHD car?
I suspect the MC is the same for both variants?
I was hoping that someone with ETKA would look up the part no1992 80 quattro 20vT
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Originally posted by Mikes2 View PostIf you look at the 90 20v fwd, the same master cylinder is listed for both lhd and rhd1992 80 quattro 20vT
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Yeah, there are equivalents from many sources, even rebuild kits considering they are supposed to be un-dismantlable. I'm trying to go OEM first.
I dug a bit deeper into the ATE catalog and all the cars this master cylinder is fitted to says it's for left-hand drive vehicles.
Article Number: 03.2125-3210.3, ATE Brake Master Cylinder
Article Criteria
Driver Position: for left-hand drive vehicles
Ø: 25,4 mm
Number of connectors: 4
Thread Size: M10x1
Length 1: 36 mm
Length 2: 116,2 mm
I've mailed them to see what's the problem.1992 80 quattro 20vT
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thank you for your inquiry.
Excuse me please, but for a right-hand drive Audi 90 quattro, is a brake
Cylinder not on sale in the ATE Aftermarket .
Please contact the vehicle manufacturer.
Mit freundlichen Grüßen / Best regards1992 80 quattro 20vT
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I don't think I'm overthinking this, I was just trying to buy an OE part instead of an aftermarket one, and I'd rather not assume that ATE have printed the wrong information in their specification. I've bought two aftermarket ones so far, one was cancelled due to supplier issues and the other one hasn't turned up yet.
For reference, this is the one I removed after the front brakes stuck on during hard braking (ABS kicked in). I felt the pedal drop about 10mm. The master cylinder was too hot to touch, but released the brakes when I doused it in cold water:
and this is the spare I fitted that won't build up pressure, to show how it's plumbed in:
Last edited by Jamin; 14 July 2017, 15:36.1992 80 quattro 20vT
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No Bother Mike, I've bought one. ECP was who I first bought from but found they couldn't supply: http://www.carparts4less.co.uk/cp4l/...d760214&0000321992 80 quattro 20vT
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ECP gave me this from my reg, which seems correct?
http://www.eurocarparts.com/ecp/c/Au...f162e8b&000032
Appreciate you have bought one now, and that they can't supply!
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