Engine Parts
Piston Systemyz450f/wr450
Part # 0903-1589
$736.36
NY: 0
National: 3
- —Kit includes all necessary parts for a complete top-end service/rebuild: pistons, piston rings, piston pins, gaskets, valves, and valve springs
- —Pistons fully machined from 2618 aluminum alloy with a performance skirt coating
- —Lightweight racing valve spring kit with titanium valve spring retainers, dual springs and H.T. steel base washers (springs are suitable for use with high-performance cams)
- —All necessary gaskets, seals and O-rings included
- —The pistons, rings,valve and pin clips are designed to work togethere as a system.
- —Not compatible with OEM components.
Calculated shipping at checkout
30-day returns on unused parts
Ships in 1–3 business days
Specifications
Product NameTop End Kit
Riding StyleOff-Road
Spring Open Pressure86 lb
ApplicationExhaust
Collar MaterialTitanium
Spring Lift0,380"
ApplicationIntake
MaterialWhite Diamond® Stainless
UnitsKit
Valve Seat Height1.105"
Spring Seat Pressure39 lb
Spring Lift0.380"
Weight1.91 lbs
Dimensions (L x W x H)8.1" x 8.01" x 2.31"
Fits These Vehicles (13)
WR450F2015
WR450F2014
WR450F2013
WR450F2012
WR450F2011
WR450F2010
WR450F2009
YZ450F2009
WR450F2008
YZ450F2008
WR450F2007
YZ450F2007
YZ450F2006
Not sure it fits? Call our Harley techs at 607-654-7431.




















