WESPC Valve Cover Gasket 3681A059 For Perkins 1104D-E44 1106C-E66 70 1106D-E66 70 Diesel Engines

Application:

3681A059 is the molded rubber valve-cover seal for Perkins 1104D-E44, 1106C-E66/70 and 1106D-E66/70 engines; it is therefore fitted to LiuGong CLG835/842/856 wheel loaders, 906/908/920/925 excavators, FG Wilson P88-200 kVA generator sets, JCB 531-70 tele-handlers and MF 4300-series tractors that share the same cylinder-head geometry.

Technical specifications:

One-piece nitrile-beaded profile, 2.8 mm crown thickness, 65 Shore-A hardness; steel spacer rings are vulcanised into the bolt holes to maintain 0.9-1.1 mm compression and prevent over-torque creep. Operating range −30 °C to 130 °C in 15W-40 oil mist, withstands 0.5 bar crank-case pulse and 24 h salt-spray without loss of elasticity.

Material & performance features:

FKM/nitrile blend is asbestos-free and bonded to a para-aramid carrier for 25 % tear strength vs. cork substitutes; mould-cavity finish gives Ra 3.2 µm on both faces to micro-seal cast-iron and aluminium covers without additional sealant. Compression set <15 % after 70 h at 125 °C, providing >8 000 h leak-free life in 24/7 generator duty before re-torque is required.

Interchange part numbers:

3681A059 crosses directly with 3681A065, 3681A068, 2759-884, U3681A059 and WG3681A059.

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.