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.

Caterpillar C1.1 Valve Seat Insert

Caterpillar C1.5 Perkins Valve

U10136470

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