WESPC CH11379 142-5867 Diesel Fuel Filter Element for Generator Sets

WESPC CH11379 142-5867 Diesel Fuel Filter Element for Generator Sets

Application:

WESPC CH11379 rear crankshaft oil seal, interchangeable with part number 142-5867, is designed for Caterpillar 3054 and Perkins 1004 series 4-cylinder diesel engines. These engines are widely used in compact construction machinery, agricultural tractors, generator sets, and industrial systems. The rear crankshaft seal is installed at the flywheel end of the engine, preventing engine oil from leaking into the bellhousing or clutch housing. It plays a critical role in maintaining crankcase pressure and protecting transmission components from oil contamination during high-speed operation and thermal cycling.

Generator sets:

Commonly installed in 80–120 kVA diesel generator platforms powered by Perkins 1004-4 engines. The WESPC CH11379 rear oil seal ensures consistent oil retention and crankshaft sealing during continuous operation, contributing to stable performance and reduced maintenance in commercial and industrial backup power systems.

Construction machinery:

Suitable for Caterpillar skid steers, compact loaders, and small excavators equipped with 3054 engines. The rear seal withstands vibration, dust ingress, and thermal expansion in off-road environments, supporting reliable engine operation in demanding construction applications.

Agricultural equipment:

Used in Massey Ferguson tractors such as the 390, 398, and 399 models powered by Perkins 1004-4 engines. The WESPC CH11379 seal ensures effective oil containment during extended field operations, reducing the risk of clutch contamination and crankshaft wear. It contributes to longer service intervals and improved engine durability in agricultural applications.

Industrial systems: Applied in stationary pumps, compressors, and mechanical drives requiring high engine stability and rotational precision. The rear oil seal maintains lubrication system integrity under continuous load and rotational stress, supporting stable engine operation in demanding industrial installations.

Technical specifications:

Seal type: rear crankshaft oil seal with integrated wear sleeve

Compatible engines: Caterpillar 3054, Perkins 1004-4

Bore diameter: 186 mm

Outside diameter: 154.419 mm

Shaft diameter: 154 mm

Width: 19.18 mm

Material: high-performance plastic sealing lip with green wear sleeve

Design: one-piece press-fit seal with integrated dust exclusion features

Warranty: 12 months manufacturer warranty

Material & performance features:

Manufactured using high-temperature resistant polymer compounds with a precision-molded sealing lip and integrated wear sleeve. The seal is engineered to maintain contact with the crankshaft under dynamic conditions, preventing oil leakage and ingress of contaminants. It supports long-term reliability under thermal stress, vibration, and rotational load. Produced under ISO-certified quality control standards.

Interchange part number:

CH11379; verified fitment for Caterpillar 3054 and Perkins 1004-4 engines. Compatible with standard rebuild procedures across agricultural, construction, generator, and industrial applications

WESPC(Dongguan)Tech Co., Ltd. is a wholly-owned subsidiary of WESPC Hong Kong.

The company has long been deeply engaged in the Perkins aftermarket spare parts sector, while also covering a wide range of multi-brand engines and related components. With years of professional expertise and a solid reputation, WESPC provides customers with diverse, one-stop solutions tailored to their needs.

Leveraging the global vision of its Hong Kong headquarters and the strategic location advantages of Dongguan, WESPC Dongguan is committed to building a highly efficient and reliable supply chain system, supported by professional technical expertise and comprehensive after-sales services, to continuously create greater value for its customers.

Looking ahead, the company will continue to expand its business landscape, keep pace with industry trends, and consistently enhance product and service quality—working hand in hand with global partners to achieve mutual growth and success.