BELLOWS AS 2071355 - Caterpillar

(4HK, 74Z) Track-Type Tractors;
776B (6CJ),
776C (2TK),
784B (5RK) Tractors;
777B (4YC),
777C (4XJ),
785 (8GB),
785B (6HK),
789 (9ZC),
789B (7EK),
793 (3SJ),
793B (1HL) Trucks;
994 (9YF) Wheel Loaders;
5130 (7TJ, 5ZL),
5230 (7LL) ExcavatorsDescription of Change: New front and rear crankshaft seal groups are used in the engines in the above machines. The new seal groups are identical to the former seal groups except for the sleeves. New sleeves used in the new seal group have an improved surface finish. Adaptable To: The new 113-8432 and 113-8433 Crankshaft Seal Groups are direct replacements for the former 6I-3809 and 6I-3810 Crankshaft Seal Groups respectively in the 7W-3813 Crankshaft Seal Group. The former crankshaft seal groups are canceled. The new 113-8432 Crankshaft Seal is used in the front housing on standard rotation engines and the flywheel housing on reverse rotation engines. The new 113-8433 Crankshaft Seal is used in the flywheel housing on standard rotation engines and the front housing on reverse rotation engines.