WESPC Valve Seat T400757 46.0mm OD for Perkins 1506A 1104 1004 Series Diesel Engines

This T400757 exhaust valve seat ring is designed for Perkins 1506A/E88TAG 6-cylinder diesel engines (8.8L) and 1004/1104 4-cylinder engines (4.0-4.4L). It provides reliable performance in 150-250 kW generator sets, combine harvesters, MF 6400-series tractors, and marine auxiliary engines. The valve seat maintains excellent sealing with blow-by below 1% and keeps exhaust temperature within EU Stage IIIA limits even after 12,000 hours of full-load operation.

Manufactured from low-carbon (0.15%) steel billet with copper infiltration and sintered to 7.2 g/cm³ density, this valve seat delivers exceptional durability with 350 HB hardness and thermal conductivity of 45 W/m·K for efficient heat dissipation. The copper-infiltrated matrix prevents valve micro-welding and effectively transfers heat away from 21-4N stainless steel valve heads, maintaining seat temperature below 220°C even when exhaust gas reaches 700°C. The controlled 0.25 µm Ra surface finish ensures proper bedding within 50 hours of operation.

PERKINS T400757, 222230, 4484632/6, KMP T400757, CORTECO 82316912, FAI VT400757, AJUSA 810400757, GLYCO VS-Per 1506, MAHLE VS-T400757, AE T400757, CLEVITE VS-T400757, TOPLINE T400757, VMC T400757, MARINE D'USTRIE T400757, KINGSLAND T400757, AIC T400757, WDPART T400757.