Седло впускного клапана.

CLG936D, CLG936LC, D180, HL25C, HL760, HL760-9S, R280LC, R290LC, R300LC-9S, R320LC-7, R330LC-9S, SG21-3, SG21-3(0), SG21-3(1), SG21A-3, SG21A-3(0), SG21A-3(1)