Aftermarket Valve Spring for the Caterpillar C6.6 diesel engine. Direct replacement for Caterpillar 436-0521.
Fits These Models
Caterpillar Loaders: 924HZ, 928H, 928HZ, 930H, 938H, 953D, AP655D, CP56, CP64, CP68B, CP74, CP74B, CP76, CS56, CS56B, CS64, CS68B, CS74, CS74B, CS76, CS78B, CS79B, D5R, D6K, D6N, IT38H, PL61
Caterpillar Excavators: 320D, 320D2, 535D, 545D, 555D, 815K, 816K, AP1055, AP1055F, AP655, 6I-2997, FM, GC
Caterpillar Wheel Loaders: 950L, 950M, 962L, 962M, GC
Caterpillar Track Loader: 963K
