This is a A-B1XT0436 CLUTCH, PTO XTREME X0436 PN: B1XT0436Main Description As Following : A-B1XT0436 CLUTCH, PTO XTREME X0436 P.N: B1XT0436 Cool Coil TechnologyHeavy Duty "FatBoy Series" UpgradeReplaceable Pulley BearingSuper Smooth "Xtreme Precision" Machined PulleyUpgraded to 3 Layer "Xtreme TOUGH" Integrated, Water Tight Wire HarnessFatBoy SeriesDim A (1): Crank Diam.1.125"Dim B (2): Counter ClockwiseDim C (3): Pulley Diam.6.25"Dim D (4): A/B Belt Crossed From: TCA16999 JOHN DEERE , TCA19141 JOHN DEERE , TCA20380 JOHN DEERE , X0436 XTREME Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada