Oil check valve (two are required for some applications; they are sold individually).
OEM #1998TA
Fits a Farmall H, HV, Super H, Super HV, 300, 350, I-4, O-4, OS-4, W-4 and Super W-4, M, MV, O-6, Super M, Super MV, W-6, Super W-6, Super W6-TA, AV, B, C, F-20, F-30, etc.
OEM #1998TA
Fits a Farmall H, HV, Super H, Super HV, 300, 350, I-4, O-4, OS-4, W-4 and Super W-4, M, MV, O-6, Super M, Super MV, W-6, Super W-6, Super W6-TA, AV, B, C, F-20, F-30, etc.