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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
Upgrade your Polaris engine today — unmatched value
Tophat valve stem seals
these SKF bearings will have your ride hitting harder in every gear
18 roller and needle bearings total
03+ YZ250 YZ 250 Ported Cylinder Porting Head Complete Top End Rebuild Parts Kit WR400F Upgrade your Polaris engine todayFITS ALL 2003 AND NEWER YAMAHA YZ250 TWO STROKE DIRT BIKES Aftermarket 66. 40mm cylinder Stage 2 trail MX port Aftermarket cylinder head Wiseco or Wossner 66. 40mm forged piston** Piston rings Wristpin Circlips Top end gasket kit MAXLOCK head stud kit Cylinder to case dowel pins Stickers Head works with all OEM or after market components. Piston uses pump or race gas. Works with stock or after market valve springs. Everything is brand new. CONTACT US
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