One New Aftermarket Replacement Valve Train Kit Fits Allis Chalmers Combine Models: 100 (With Cylinder Head Casting # U3001 and Am3820)Also Fits Allis Chalmers Tractor Models: : D (Gas Up To Engine SN: 5424), W226 (Early), Wc ( Engine SN: 84247 and Up), Wf ( Engine SN: 84247 and Up), Wd, Wd45 (Gas, Lp)Also Fits Allis Chalmers Loader Model: Tl10 (201" Gas, Lp)Also Fits Allis Chalmers Speed Patrol Engine Model: W (SN: 84247 and Up)Also Fits Power Unit Models: W201, W25Included In This Kit Are The Valves, Guides, Springs, Keepers (0.100" Wide Keeper Groove) and Stem Seals. There Kit Is For Valve Seats With A 45 Degree Angle. Note: Does Not Include Retainersreplaces Part Numbers: Enj20-0023Valve Spring: 206879, 70206879,Intake Valve: 209132, 70209132,Exhaust Guide: 229911, 70229911,Valve Locks (Keepers): 209103, 70209103, 7437697,Intake Guide: 203142, 241536, 70203142, 70241536,Exhaust Valve: 229143, 70229143, 241527, 70241527