Valve seal (valve stem seal) for the Perkins 403-11 / 403D-11 and Shibaura N844 diesel engine. Direct OEM replacement (U20406140). Prevents oil consumption and blue smoke. Price per piece.
Complete cylinder head kit for the Perkins 403-11 / 403C-11 / 403D-11 (Shibaura S773, Caterpillar C1.1): new head complete with valves, the full gasket set, and 3x glow plug. Everything for the job in one item, available from stock.
Complete gasket set for the Perkins 403D-11 and 403C-11 engines (CAT C1.1 / Shibaura S773). Includes crankshaft oil seal, valve stem seals, copper sealing washers, and O-rings — everything for a full engine overhaul. Direct OEM replacement (ref. U5LC0021).