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.

18 19 Yamaha YZ450F YZ 450F Stock Bore Cylinder Wiseco Piston Top Rebuild Kit

by BPRATV
Save 25% Save 25%
Original price $649.99
Original price $649.99 - Original price $649.99
Original price $649.99
Current price $488.98
$488.98 - $488.98
Current price $488.98
BPRATV Stock Bore Cylinder Top End Kit With Wiseco 12.5:1 Forged Piston & Cometic Gasket Kit!

This is the best and most reliable rebuild kit on the market!

Fits Yamaha YZ450F Dirt Bikes

Years 2018 & 2019 ONLY

This kit includes:

Nikasil Stock Bore Cylinder 
Wiseco Forged & Coated 12.5:1 Piston Kit (Includes, Piston, Pin, Rings & Clips)
Cometic Top End Gasket Kit
It will work with your stock head and valves.  All parts come with warranty.

BPRATV - The Best Parts. The Best Performance. The Best Price.
BRAPPPPPPPPPP!

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