WESPC Valve Seat Insert U10136470 For Perkins 404D-22 404D-22T Diesels Engine

WESPC Valve Seat Insert U10136470 For Perkins 404D-22 404D-22T Diesels Engine

Application:

The valve-seat insert U10136470 is machined as the exhaust seat for Perkins 404D-22/404D-22T 2.2 L three- and four-cylinder diesels used in 25-60 kVA generator sets (FG Wilson P22-5, Atlas-Copco QAS 45), compact wheel loaders, mini-excavators and forklift trucks where space and emission compliance demand a cooled, high-velocity seat. The identical insert is also listed for Caterpillar C1.1/C1.5 and JCB 444 EcoMax builds, so one part number services agricultural, construction and power-generation fleets worldwide.

Technical specifications:

OD 38.00 mm, depth 7.5 mm, 45° seat angle, 1.5 mm seating width; interference fit 0.06-0.08 mm for cast-iron heads, so the seat can be installed with a standard driver and finished to 37.90 mm ID after pressing. Concentricity is held within 0.02 mm to prevent valve run-out, and the lower corner is radiused 0.3 mm to eliminate stress concentration when the head undergoes 220 bar peak cylinder pressure.

Material & performance features:

Produced from a high-chromium Co-Cr-Mo tool steel (≥45 HRC after heat treatment) containing 2.8 % C, 30 % Cr, 1.2 % Mo and 0.8 % V, the seat is vacuum-sintered to full density and then tempered at 580 °C to give a hot hardness of 38 HRC at 700 °C. A controlled 0.05 % phosphorus addition promotes secondary graphite for self-lubrication, while the lapped 45° face offers a 1.2 µm Ra finish that beds in within 15 minutes of first fire.

Interchange part numbers:

Perkins U10136470, 10136470, KMP U10136470, FP U10136470 and Mahle VS-1475.

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.