Complete engine rebuild kit; Includes crankshaft, piston kit, complete engine gasket kit with oil seals, main bearings and seals, water pump rebuild kit, transmission bearings, countershaft bushing/seal kit, wrist pin bearing, cam chain and counter balancer bearings when applicable. The most comprehensive and complete engine kit available. The Wrench Rabbit combines the leading brands in one box, (Hot Rods, Hot Cams, Vertex) Features and Benefits • The only complete engine rebuilt kit on the market • This kit combines the leading brands in one box (Hot rods, Hot Cams, Vertex) • Includes everything required to rebuild a complete engine • Hot Rods heavy duty crankshaft • Hot Rods counter balance bearing kit, when applicable • Hot Rods main bearing and seal kit • Hot Rods transmission kit • Hot Rods water pump rebuild kit • Vertex piston kit • Vertex complete gasket and oil seal kits (does not include mechanical seals • Vertex wrist pin bearing, when applicable • Hot Cams cam chain, when applicable • Save 7-15% over purchasing the components individually • Saves an average of almost $400 over OE components • Huge time saving over OE look-up and missed components VERTEX WRENCH RABBIT COMPLETE ENGINE REBUILD KIT YAMAHA YZ125 05-21, YZ125X 20-21 FANTIC XX/XE 125 21-22