Sierra 18-2850-1 Manifold End Cap Gasket Replaces 0908935Sierra 18-2850-1 Manifold End Cap Gasket is a replacement part for OMC Stern Drive. Sierra aftermarket parts are met to meet or exceed OEM requirements. Used with Manifold 18-1904.Application: OMC 1974-75 120HP; OMC 1974 175 - 235 HP; Replaces: Barr; OMC47908935; GLM; 32980; OMC Stern Drive; 908935;