This is a A-3929253 Gasket, Front Gear Housing PN: 3929253Main Description As Following : A-3929253 Gasket; Front Gear Housing P.N: 3929253 A-3929253 Gasket; Front Gear Housing P.N: 3929253 Replaces: C3929253 MAXIFORCE Found in Section & Models : Engine Parts > 6-830T Turbo Charged Cummins "C" Series, Case-IH COMBINE: 1660, Case-IH COMBINE: 1666 (Engine SN 44706126>), Case-IH COMBINE: 1670 (Engine SN <44706125), Case-IH COMBINE: 1680 (Engine SN <44706125), Case-IH COMBINE: 2166 (SN