This is a A-3907177 Seal, Liner PN: 3907177Main Description As Following : A-3907177 Seal, Liner P.N: 3907177 Seal For Piston Liners: 3802370, 3802407, 3800328 Replaces: C3907177 MAXIFORCE , Crossed From: HCK3907177 , , HE3907177 , 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