This concerns a new cylinder head manufactured from high-quality material. This cylinder head is available in two versions:
Bare cylinder head (with valve seats) — the valve seats are already installed, ready to be assembled with valves and other components yourself.
Cylinder head complete — delivered fully pre-assembled, including valves, valve springs, valve seats, and seals. Directly ready for installation on the engine.
The compatible models below have been carefully matched to this cylinder head.
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.
Full gasket set for Perkins 403D-11 and 403C-11 engines (CAT C1.1 / Shibaura S773). Includes crankshaft seal, valve stem seals, copper washers, and O-rings — everything for a complete engine overhaul. Direct OEM replacement (ref. U5LC0021).