What ATE calipers are these for?

[P911S]

Cant figure out what these calipers belong to. Took them off the rear of my 914. Anyone know? 34mm piston.

[bkreigsr]

What is the bolt spacing? They look like they will mate to solid rotors only.
Where is the e-brake adjuster on these?

Porsche made the solid-rotor version for the fronts on the 914 and 912E with both 3.5" and 3" hole spacing; so if there is no provision for the e-brake adjustment, they are probably fronts.

(For the definitive answer, wait for Bill Verberg to chime in.)

Bill K

[BURN-BROS]

Stock rear caliper for a 911 with vented rotors. could be front from an non S as well.

[Bill Verburg]

It's not a front M, the bleed would be in the middle

best guess is a '69 rear narrow M

these were used on 18mm non vented rotors and came w/ either 35mm pistons or 38 mm pistons, depending on what the fronts used.

[BURN-BROS]

There are spacers between the caliper halves. IIRC,The solid rotor variants did not have them. Examples below of solid rotor units.

[Bill Verburg]

Originally Posted by BURN-BROS

There are spacers between the caliper halves. IIRC,The solid rotor variants did not have them. Examples below of solid rotor units.

yeah I missed that, so probably regular M rear which usually have 38mm pistons

AFAK only the early narrow(18mm rotor) calipers used the 35s, but then I know very little about 914s