WESPC Exhaust Valve T403169 For Perkins 1004-4 1004-4T 1006-6 1006-6T 1104C-44 1104C-44T

WESPC Exhaust Valve T403169 For Perkins 1004-4 1004-4T 1006-6 1006-6T 1104C-44 1104C-44T

Application:

This exhaust valve is machined for Perkins 1004-4, 1004-4T, 1006-6, 1006-6T and 1104C-44/1104C-44T diesels (4.0–6.0 L) that power 55–70 kW generator sets, Massey Ferguson 3000/6400 tractors, JCB 3CX back-hoe loaders and combine harvesters. It is installed in the cylinder-head exhaust port and is designed to survive 850 °C combustion temperature while keeping seat concentricity within 0.02 mm TIR, ensuring blow-by stays below 1 % after 12 000 h of cyclic load.

Technical specifications:

Overall length 150 mm, head diameter 38 mm, stem diameter 9 mm, seat face angle 45°, margin thickness 2.5 mm, stem tip induction-hardened to 55 HRC. The valve is forged from 21-4N (UNS S63015) austenitic stainless steel, solution-treated at 1050 °C and age-hardened to 30 HRC at the head centre for creep resistance.

Material & performance features:

The 21-4N alloy contains 9 % Mn, 4 % Cr, 3 % Ni and 0.45 % C, providing continuous hot strength to 850 °C and resistance to lead/sulphur corrosion when low-grade fuels are used. Chrome plating reduces stem wear groove depth to <0.02 mm after 6 000 h, while the roll-burnished fillet delays thermal-fatigue cracking by 30 %.

Interchange part numbers:

PERKINS T403169, T400745, T403170, T400744, U20176391, 3142A101, 301-03673, KMP T403169, FPS VT403169, EMMARK EM5788, SPARETO T403169, AGRI DOCTOR AD-T403169, WDPART T403169.

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.