WESPC Valve Spring 3174A031 For Perkins 1104D-44 1104D-44TA 1104C-44T Diesel Engine

WESPC Valve Spring 3174A031 For Perkins 1104D-44 1104D-44TA 1104C-44T Diesel Engine

Application:

3174A031 is the outer valve spring for 4-cylinder Perkins 1104D-44 / 1104D-44TA, 1104C-44T and Caterpillar C4.4 industrial diesels (4.4 L). It is installed around both inlet and exhaust valves in engines that power JCB 3CX/4CX back-hoe loaders, Case Maxxum MX tractors, 45–70 kVA “Vista A” generator sets and MF 5400-series farm tractors, maintaining correct valve motion up to 3 000 min⁻¹ while meeting EU Stage IIIA / EPA Tier 4-final emission limits.

Technical specifications:

Free length 50 mm, outer diameter 31 mm, wire diameter 3.5 mm, 6.5 active coils, solid length 30 mm. Material is chrome-vanadium spring steel (50CrV4) oil-quenched and tempered to 47 HRC, then shot-peened to 0.25 mm A-intensity to raise fatigue life to 1 × 10⁷ cycles.

Material & performance features:

The 50CrV4 alloy (0.5 % C, 1 % Cr, 0.15 % V) offers 1 600 MPa tensile strength and 8 % elongation, resisting surge-set when exhaust temperature reaches 700 °C. Controlled shot-peening induces 400 MPa compressive stress on the outer surface, delaying fatigue crack initiation and extending service life to 12 000 h.

Interchange part numbers:

PERKINS 3174A031, T417479, T408677, AGCO 4224856M1, 4224856V1, KMP 3174A031, FPS VS3174A031, ITM VOE3174A031, FAI VS3174A031, AJUSA 8103174A031, GLYCO VS-Per 1104, MAHLE VS-3174A031, AE 3174A031, CLEVITE VS-3174A031, TOPLINE 3174A031, VMC 3174A031, MARINE D’USTRIE 3174A031, KINGSLAND 3174A031, AIC 3174A031, WDPART 3174A031.

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.