WESPC Exhaust Valve 3142A052 For Perkins 4.236 4.248 6.354.2 Diesel Engine

Application:

Exhaust valve 3142A052 is the standard exhaust valve for the Perkins 4.236, 4.248 and 6.354.2 naturally-aspirated and turbocharged diesel engines that have been fitted to Massey Ferguson 362/365/375/383 tractors, MF 30/31 combines, JCB 530-70 Loadall tele-handlers, 40-65 kVA generator sets and a wide spectrum of industrial sweepers, forklift trucks and irrigation pumps. The same valve is also specified for the later 4.41 and T4.40 builds, making it a high-volume service item across farms, rental fleets and construction yards worldwide.

Technical specifications:

The valve is a one-piece forging with a 36.6 mm (1.440 in) head diameter, 7.6 mm stem diameter and 123.3 mm (4.855 in) overall length, ground to a 45° seat angle that mates with the exhaust seat insert. The stem is hard-chrome plated to 0.015 mm thickness to give a 58 HRC surface that resists galling in cast-iron guides, while the 8.0 mm stem tip is stellite-faced to withstand 950 °C exhaust gas temperature and 200 MPa seat impact stress. A 3.5 mm sodium-filled hollow cavity in the head reduces operating temperature by 60 °C.

Material & performance features:

The head is forged from 21-4N (5Cr-9Mn-4Ni) austenitic valve steel that retains 85 % of its 950 °C tensile strength after 500 h, while the stem is friction-welded to a low-carbon martensitic tail to give 220 HV10 core hardness and improved fatigue resistance. The seat face is plasma-nitrided to 0.08 mm depth and 950 HV surface hardness, giving a wear index better than 1,000 hours in continuous 3,000 rpm field tests.

Interchange part numbers:

PERKINS 3142A052, 3142A055; MASSEY FERGUSON 747552M1, 4223074M1; JCB 331/20215; LANDINI 747552M1; KMP 3142A052-4; ITM 1158150.

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.