This is a A-B1XT0366 CLUTCH, PTO XTREME X0366 PN: B1XT0366Main Description As Following : A-B1XT0366 CLUTCH, PTO XTREME X0366 P.N: B1XT0366 Cool Coil TechnologyHigh Temperature Bearing UpgradeReplaceable Pulley BearingSuper Smooth "Xtreme Precision" Machined PulleyUpgraded to 3 Layer "Xtreme TOUGH" Integrated, Water Tight Wire HarnessCrankshaft: 1Pulley: 7.2Rotation: CCWBelt: 1/AB Crossed From: X0366 XTREME , 13554 ROTARY , 255-643 STENS , 255643 STENS , 5219-54 WARNER , 521954 WARNER , 71410014 WRIGHT Found in Section & Models : Sunbelt - Electrical > Electric PTO Clutches, Wright (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Cool Coil Technology High Temperature Bearing Upgrade Replaceable Pulley Bearing Super Smooth "Xtreme Precision" Machined Pulley Upgraded to 3 Layer "Xtreme TOUGH" Integrated, Water Tight Wire Harness Crankshaft: 1 Pulley: 7.2 Rotation: CCW Belt: 1/AB