WESPC Valve Cotter 33173108 For Perkins 4.236 4.248 6.354 1004-4 1004-40 1004-4T 1006-6

WESPC Valve Cotter 33173108 For Perkins 4.236 4.248 6.354 1004-4 1004-40 1004-4T 1006-6

Application:

These hardened-steel split cotters (quantity 2 per valve) lock the spring cap to the stem of inlet and exhaust valves on Perkins 4.236, 4.248, 6.354, 1004-4, 1004-40, 1004-4T, 1006-6, 1006-60T and CCW6.601 engines; they are therefore used in Massey Ferguson 165-399 tractors, 30-50 back-hoe loaders, 550-890 combines, Landini 7860-8880 row-crop tractors, JCB 3CX/4CX back-hoes, Claas 65-75 forage harvesters, New Holland 1116 swathers, 1495/1496 mower-conditioners, Volvo BM 2200 forklifts, FG-Wilson P100-4 & P135-4 generator sets and a wide spread of irrigation, construction and marine auxiliaries that use the above engine families world-wide.

Technical specifications:

The cotter is die-forged from 65 Mn spring-steel, heat-treated to 48-52 HRC, 8.9 mm ID, 5.0 mm OD, 6.0 mm overall length and 45° included taper; the split design gives 0.15 mm radial grip on the valve groove, preventing cap walk at 6 000 valve lifts per minute. Weight is 1.6 g per pair and the parts are supplied oiled and ready for installation.

Material & performance features:

The contact faces are precision-ground to Ra 0.4 µm to eliminate micro-slip, while a manganese-phosphate coating gives 96 h salt-spray resistance and aids initial bedding-in. The design maintains clamp load within ±5 % after 5 million cycles, eliminating valve-stem wear and spring cap loosening under severe stop-start agricultural duty.

Interchange part numbers:

Perkins 33173108; Massey Ferguson 33173108; Landini 33173108; JCB 33173108; Caterpillar 218619A1; AE COT-108; Mahle 043VE33173108; Bepco BV33173108; Maxiforce MV-33173108; SBI 01816.

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.