37-7977 Caterpillar Rotator

Replaces OEM # 7E7977

Fits all Caterpillar models and years with 3176 (6239 C.I.) 24V, C10 (10.3L), C12 (12.0L) 24 or C11 (11.1L), C13A (12.5L) 24V Turbo Diesels.