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⚠️ ATTENTION FELLOW PATRIOTS: BPRATV will be CLOSED on Friday, July 3rd, 2026, in observance of the Fourth of July holiday. We'll reopen and resume the grind for liberty on Monday, July 6th, 2026. Proceed accordingly. Muuurica! ⚠️
⚠️ ATTENTION FELLOW PATRIOTS: BPRATV will be CLOSED on Friday, July 3rd, 2026, in observance of the Fourth of July holiday. We'll reopen and resume the grind for liberty on Monday, July 6th, 2026. Proceed accordingly. Muuurica! ⚠️

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

by BPRATV
Sold out
Original price $649.99
Original price $649.99 - Original price $649.99
Original price $649.99
Current price $588.88
$588.88 - $588.88
Current price $588.88
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!

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