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Caliper rebuilding

Posted: Fri Jul 24, 2026 5:41 pm
by spacecad3t
Im back with another project/thread. This time brakes, specifically caliper rebuilding. I just picked up a set of used calipers that look partially rebuilt, but the cylinders may need replaced. I ordered seal kits, but I noticed pistons are either out of stock or maybe difficult to find? Any advice on where to get them from?

Re: Caliper rebuilding

Posted: Fri Jul 24, 2026 6:13 pm
by Trouble
Are the pistons REALLY that bad that they can’t be cleaned up?? Are they scored or out of spec???

Re: Caliper rebuilding

Posted: Fri Jul 24, 2026 6:23 pm
by Sansho
Which model and variant in 924/944/968?

Re: Caliper rebuilding

Posted: Fri Jul 24, 2026 7:01 pm
by spacecad3t
Trouble wrote: Fri Jul 24, 2026 6:13 pm Are the pistons REALLY that bad that they can’t be cleaned up?? Are they scored or out of spec???
I haven't actually broken them down yet, the boots just look hosed. I will reuse them if I can, but I was mostly just asking so I could understand my options.

Sansho wrote: Fri Jul 24, 2026 6:23 pm Which model and variant in 924/944/968?
1987 944 NA, the single piston floating calipers.

Re: Caliper rebuilding

Posted: Fri Jul 24, 2026 8:59 pm
by Sansho
Do an ebay search on “ate replacement pistons for 1987 porsche 944 brakes” and there’s at least one company in UK that sells them. I didn’t go through all the listings, so there may be other sources. Also Design911 in UK has a combo piston/seal kit for the rears.

Re: Caliper rebuilding

Posted: Sat Jul 25, 2026 1:38 am
by Outlaw944
I'd brake them down first and check. I refurbished mine a while back and needed to replace everything but the pistons were fine.

Re: Caliper rebuilding

Posted: Sat Jul 25, 2026 5:42 am
by chrischrischris
I saw that Edredas.com has some rebuilt and replated sets for sale