YFZ450 YFZ 450 Top End Rebuild Kit Replace Cylinder Piston Stock Bore Assembly

• Aftermarket stock bore cylinder
• Wiseco CP or JE forged piston**
• Nitrite coated piston rings
• Chrome wristpin
• Circlips
• Top end gasket kit
• MLS head gasket
• Timing chain
• Maxlock TITANIUM head stud kit - LIFETIME WARRANTY* (Read below)
• Piston uses pump or race gas
• No mods required
• 1 year warranty*
• We are an authorized distributor

 Returns: Please check your order completely when you receive it and contact us if there is an issue.  99% of problems can be easily solved without returning the entire order.  We accept returns within the first 30 days, and returned items are subject to a 10% restocking fee  Orders must be sent back 100% complete and all parts must be brand new, never installed, in the original packaging, to receive a refund for them.  Once items have been modified, installed, or used in any way they are not eligible for return.  It is the buyer’s responsibility to ensure returned parts arrive to us in the same condition they were when they left our facility.  

 *Warranty: We stand behind all parts we sell 100%.  If after installation there is an issue contact us for a warranty return.  This product is NOT DIY.  Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person doing the work to ensure the parts work correctly.  We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic.  STUD WARRANTY: If for any reason a stud fails during use, not installation, we will send a new, complete stud kit.  No other parts or any labor are included, and it cannot be converted to a refund or discount on any order. Our warranty does not cover any failure that is a result of improper installation, tuning, break in, lack of maintenance, or misuse.  For any warranty to be considered the part(s) in question must first be sent back to us for inspection, NO EXCEPTIONS.  We do not warranty parts based on phone calls, photos, emails, what you read online, or another mechanic's assessment alone.