WESPC Valve Stem Seal 33817117 For Perkins 1004-4 1006-6 1106C D Diesels Engine

Application:

The 33817117 seal is a metal-clad FKM (Viton) intake/exhaust stem seal used on Perkins 1004-4, 1006-6 and 1106C/D engines. It is therefore fitted to Liu-Gong CLG835/842/856 loaders, JCB 531-70 tele-handlers, FG Wilson P88-200 kVA generator sets and MF 4300-series tractors that share the same cylinder-head machining.

Technical specifications:

Lip-type seal for 8 mm valve stem, 14 mm OD, 7 mm height; spring-loaded Viton lip withstands −30 °C to 120 °C in 15W-40 oil mist and 0.5 bar crank-case pulse. The lip is moulded to Ra 0.4 µm to micro-seal the stem and prevent oil carry-over into the intake/exhaust port.

Material & performance features:

FKM/nitrile blend is asbestos-free and bonded to a steel carrier for 25 % tear strength vs. cork substitutes; compression set <15 % after 70 h at 120 °C, providing >8 000 h leak-free life in 24/7 generator duty before replacement is required.

Interchange part numbers:

33817125, U33817117, S.41325, 12016623, 70-41471-00.

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.