This is a A-180898M1 Ring, Hydraulic Lift Piston PN: 180898M1Main Description As Following : A-180898M1 Ring, Hydraulic Lift Piston P.N: 180898M1 Fits 3 Ring Piston Part# 181983M1, Not Available From A&I Products.Set of 3 cast rings. Stocked As: A-47B47 , Crosses To: A-47B47 , Found in Section & Models : Hitch & Drawbar Parts > Rockshaft Cylinders and Parts, Massey Ferguson TRACTOR: TO20, Massey Ferguson TRACTOR: TO30, Massey Ferguson TRACTOR: TO35 Associated Items : New Also A-DA-O-101LDR, A-DA-P-101102, A-DA-S-101102, A-FO-S-SHER-TRAN, A-FO-SOP-SHER54A, A-MH-O-MFTO20, A-MH-O-TO20AND30IM, A-MH-P-TO20, A-MH-P-TO2030IM, A-MH-S-MFTE20, A-MH-S-MFTO20TU, A-SMFE2, A-DA-O-101LDR, A-DA-P-101102, A-DA-S-101102, A-FO-S-SHER-TRAN, A-FO-SOP-SHER54A, A-MH-O-MFTO30, A-MH-O-TO20AND30IM, A-MH-P-TO20 And : Fits 3 Ring Piston Part# 181983M1, Not Available From A&I Products. Set of 3 cast rings.