ATE 48mm Front Caliper Seal Kit for 911 SC (1976-83)

Porsche Air-Cooled Caliper Seal Kit (356, 911, 912)

PMB Performance has been elbow-deep in air-cooled Porsches for 20 years, and this seal kit’s the real deal for a full caliper refresh. One kit rebuilds one steel caliper—grab two per axle. Covers every front ATE caliper from the 356s of the early ‘60s (think 356C’s 48mm units) to the 911 Carrera rears of ’89 (pre-Brembo days).

This isn’t some generic bag of rubber. You get every seal—piston, dust boot, bleeder, banjo—for a leak-free teardown. Hardness? 70 Shore A, matching Porsche’s OEM spec, with a heat tolerance up to 250°F before breakdown. After 60+ years, most 356/911/912 calipers PMB’s cracked open show cracked seals letting brake fluid weep—95% of failures we’ve seen. Pair this with fresh stainless pistons (torque bolts to 22 Nm), and you’re braking like it’s 1965 again. Two decades of wrenching these classics means we know what holds up. 

Questions? Hit us at 855-786-7101. One kit, one caliper—simple as that.