Wartsila L20 Inlet valve seat P/N 120021
2026-04-28
Wartsila L20 Valve Seat
Wartsila L20 valve seat is a core wearing part for Wärtsilä L20 series marine & industrial diesel engines, including 4L20, 5L20, 6L20, 8L20 and 9L20 models. It is installed on the cylinder head, matching with intake and exhaust valves to achieve air intake, exhaust and combustion chamber sealing.
1. Part Numbers
Inlet Valve Seat: P/N 120021
Exhaust Valve Seat: P/N 120022
Over-size optional: +1mm / +2mm reinforced size for engine overhaul repair
2. Main Dimensions (STD)
Outer diameter, inner diameter and height are strictly manufactured per original drawing standard.
Adopts professional sealing angle design to ensure tight fit with engine valves.
3. Material & Performance
Made of high-quality heat-resistant alloy steel with stellite hardfacing.
Excellent performance in high temperature resistance, wear resistance, corrosion resistance and thermal fatigue resistance.
Effectively reduce ablation and deformation under long-term high-load operation.
Supplying RK270 Intake Valve Exhaust Valve
wartsila L20 Ex Valve Seat 120022
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Wartsila L20 Plunger
