Description
The diaphragm is the working face of an air brake chamber: air pressure acts on it and pushes the rod out to apply the brake. It is a wearing part, replaced when it hardens, splits or lets the chamber leak, and it must match the chamber’s stroke class as well as its size.
Key data for this version: dimensions 27". The Buyukdemir reference is 8-1682.
It belongs to the Long stroke range in the Buyukdemir catalogue.
It cross-refers to the original equipment numbers 897 120 547 4, 000 431 38 28, 81.51113.0011, 66619.
This is the 27" version; the nearest sizes in the same range are 24" (8-1680), 30" (8-1681), 20" (8-1679), 16" (8-1678), 14" (8-1684).
Manufactured by Büyükdemir Otomotiv in Istanbul, Türkiye, a producer of compressed-air brake and pneumatic components for trucks and trailers since 1957.
