This concerns a new cylinder head produced from high-quality material. This cylinder head is available in two versions:
Cylinder head only (with valve seats) — the valve seats are already installed, ready for you to finish with valves and other components.
Complete cylinder head — delivered fully pre-assembled, including valves, valve springs, valve seats, and seals. Ready for immediate installation on the engine.
The compatible models below have been sought with great care at the 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).