Skip to content


Raptor YFM 660 Cylinder Crank Cases Complete Rebuilt Motor Engine Rebuild Kit

Original price $1,899.99 - Original price $1,899.99
Original price
$1,899.99 - $1,899.99
Current price $1,899.99


Set of used OEM crankcases in excellent condition cleaned and sandblasted
102mm after market cylinder
Wiseco or CP forged piston**
Piston rings
After market oil pump
Hotrods or Wiseco crank with rod**
HD crank bearings - one comes on crank
Counter balancer bearings
Water pump bearing
Transmission bearings
Shift cam bearing
Complete gasket kit
Complete seal kit
Water pump mechanical seal
Water pump shaft with impeller
Stud kit
Clutch kit
Cam chain

This is a bolt on kit with no machining required.  Piston uses pump or race gas.  Everything is new in the original packaging.  We are an authorized distributor and the original manufacturer's warranty applies*.  

Please check your order thoroughly when receiving it.  If for any reason at all you are not 100% happy please contact us right away so we can help resolve the issue.  If for any reason at all you are not happy with your order you are welcome to return it UNOPENED NEVER INSTALLED AND BRAND NEW IN THE ORIGINAL PACKAGING for a FULL REFUND, NO QUESTIONS ASKED!

*We recommend that this kit be installed by a qualified mechanic with experience working on these types of motors.  Warranty does not include any failure that is a result of improper installation, improper tuning, improper break in, or misuse.  Piston comes with specific instructions for setting the ring gap.  If you do not follow these exactly your motor will fail.  For any warranty to be considered the part(s) in question must first be sent to us and possibly the manufacturer for inspection.  We can not warranty parts based on photos or phone calls alone.