Where to find quality rebuilt calipers?

[RossfromAZ]

Hi all,

While piecing together parts for a caliper rebuild, I realized that there are not, to my knowledge, any replacement pistons for Girling front calipers.

Any recommendations for rebuilt units?

Many seem to be backordered or of questionable quality.

Thanks in advance,
Ross

[packratbimmer]

There was a place in the UK that offered stainless pistons, but I cannot remember details???

[AceAndrew777]

For 2002's and E9 Coupes I have used PMB with great success. Not cheap, but very thurough.

https://pmbperformance.com/

[roguetoaster]

Guessing a bit here, but since the front seal kits are the same I would assume that they use the same piston, right? If not, pop a piston out, measure it carefully, and search for one on eBay.

Alternately, order something like this: https://www.ebay.co.uk/itm/BMW-3-E30...2/333678361894

By the way, that listing shows a diagram of the piston at 48.1mm, and a similar ad from the same seller shows the ATE pistons as identical in their diagram.

[RossfromAZ]

There was a place in the UK that offered stainless pistons, but I cannot remember details???

I'll look into it, thanks.

For 2002's and E9 Coupes I have used PMB with great success. Not cheap, but very thurough.

https://pmbperformance.com/

Thanks for the suggestion.

Guessing a bit here, but since the front seal kits are the same I would assume that they use the same piston, right? If not, pop a piston out, measure it carefully, and search for one on eBay.

Alternately, order something like this: https://www.ebay.co.uk/itm/BMW-3-E30...2/333678361894

By the way, that listing shows a diagram of the piston at 48.1mm, and a similar ad from the same seller shows the ATE pistons as identical in their diagram.

Might just do that — thanks for the advice.