Help Identify Calipers
 

I believe these are "S" calipers but not sure of year. Need rebuild kits. I didn't see a Porsche number only the H137 and an X. The brand name is ATE. The parts breakdowns that I looked at didn't have the square portion.

http://forums.pelicanparts.com/uploa...1207048711.jpg


http://forums.pelicanparts.com/uploa...1207048761.jpg


http://forums.pelicanparts.com/uploa...1207048813.jpg

Yes they appear to be the early alloy S calipers. Are the mounting holes at a 3.5" spacing? I think there is only one kit for all years of the alloy "S" caliper and are host has them.

Actually, I call those the late 'S' caliper. These were in use from at least 1974 and on the first 930. The early aluminum 'S' caliper was very similar except the 'nose' was smaller and had the appearance of the cast iron caliper. This later version has the broad nose and is probably a little stiffer. Here is the early version:
http://forums.pelicanparts.com/uploa...1207068944.jpg

Kit part # 901-351-998-00-M4
Link: http://www.pelicanparts.com/catalog/shopcart/911M/POR_911M_BRKhyd_pg4.htm#item15
you may also require new pistons: STOMSKI-SR012 on the next page.

Here's a couple pics of the 'S' calipers on my car.

http://forums.pelicanparts.com/uploa...1207077489.jpg


http://forums.pelicanparts.com/uploa...1207077519.jpg