Skip to content
BPRATV will be closed on December 24th and 25th in observance of the Christmas holiday. We will have very limited operations from December 27th to December 31st for our annual cycle counts. Thank you for your patience and understanding. Additionally, we will be closed on January 1, 2025, for New Year's Day.
BPRATV will be closed on December 24th and 25th in observance of the Christmas holiday. We will have very limited operations from December 27th to December 31st for our annual cycle counts. Thank you for your patience and understanding. Additionally, we will be closed on January 1, 2025, for New Year's Day.

YFZ450 YFZ 450 Crank Bottom End Complete Engine Motor Rebuild Kit NO CYLINDER

by BPRATV
Original price $799.99 - Original price $799.99
Original price
$799.99
$799.99 - $799.99
Current price $799.99
FITS ALL YAMAHA YFZ450 ATV CARB MODELS AND YEARS!  DOES NOT FIT YFZ450R

Hotrods or Wiseco crankshaft with rod**
CP or Wiseco forged piston**
Piston rings
Wristpin
Circlips
Complete gasket kit
Seal kit
Timing chain

**COVID IS STILL CAUSING BACK ORDERS DAILY.  WE STOCK THE EXACT SAME PARTS FROM DIFFERENT MANUFACTURERS SO THAT WHEN, NOT IF, BACK ORDERS HAPPEN WE HAVE AN ALTERNATE PART THAT IS THE SAME QUALITY TO SEND YOU.  IF YOU ONLY WANT A CERTAIN BRAND PISTON OR CRANK JUST ASK! Piston uses race gas.  Everything is new in the original packaging and the original manufacturer's warranty applies.*


Please check your order thoroughly when you receive it and contact us if you have any issues at all.  If you are not 100% happy with what you receive you are welcome to return it for a full refund, not questions asked!  Thanks!!

*We recommend that this be installed by a qualified mechanic with experience doing this type of work.  Warranty does not cover any failure that is a result of improper installation, improper break in, improper tuning, or misuse.  For any warranty to be considered the part(s) in questions must first be sent to us for inspection.  We can not warranty anything based on phone calls or photos alone.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare