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Engine - Valve Train - Valve Seats

59 products
Powersport Superstore is your go-to source for Engine - Valve Train - Valve Seats and related parts. Shop our unbeatable selection of Valve Seats with top-tier service, fast shipping, and great prices.
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Vehicle Fitment Combos Show all Vehicle Fitment Combos
Regular price $46.44
Sale price $46.44
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Head Diameter: 39mm. O.D.: 1.535in. I.D.: 1.024in. Height: .434in. All applications listed use two intake and two exhaust seats unless otherwise noted. Copper-based material designed specifically ...
Regular price $23.98
Sale price $23.98
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Quantity: Pkg. of 1. Outside Diameter: 52.32mm / 2.060in. Inside Diameter: 39.67mm / 1.562in. Height: 11.43mm / 0.450in. KPMI R&D has produced a proprietary cast iron blend that thrives in the...
Regular price $38.94
Sale price $38.94
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Head Diameter: 28mm. O.D.: 1.102in. I.D.: .827in. Height: .375in. All years of the Yamaha YZ/WR250F are 5-valve engines using three intake seats and two exhaust seats. Copper-based material design...
Regular price $38.94
Sale price $38.94
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Head Diameter: 34mm. O.D.: 1.339in. I.D.: 1.024in. Height: .375in. All applications listed use two intake and two exhaust seats unless otherwise noted. Copper-based material designed specifically ...
Regular price $38.94
Sale price $38.94
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Head Diameter: 25mm. O.D.: .984in. I.D.: .669in. Height: .355in. All years of the Yamaha YZ/WR250F are 5-valve engines using three intake seats and two exhaust seats. Copper-based material designe...
Regular price $20.11
Sale price $20.11
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All applications listed use two intake and 2 exhaust seats unless otherwise noted. Head Diameter: 31mm. 1.220in. x .906in.x .375in. OD x ID x Height. Premium valve seats for applications using ste...
Regular price $48.06
Sale price $48.06
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Head Diameter: 38.5mm. O.D.: 1.516in. I.D.: 1.142in. Height: .434in. All applications listed use two intake and two exhaust seats unless otherwise noted. Copper-based material designed specificall...
Regular price $38.94
Sale price $38.94
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Head Diameter: 33mm. O.D.: 1.299in. I.D.: .984in. Height: .375in. All applications listed use two intake and two exhaust seats unless otherwise noted. Copper-based material designed specifically f...
Regular price $38.94
Sale price $38.94
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Head Diameter: 29mm. O.D.: 1.142in. I.D.: .827in. Height: .375in. The YZ450F 03-09 and WR450F 03-12 are 5-valve engines using three intake seats and two exhaust seats. Copper-based material design...
Regular price $24.60
Sale price $24.60
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OD: 2.132in. ID: 1.800in. Thickness: 0.460in. Seats contain 18-22% Chromium for resistance to abrasion, corrosion and deformation. Nickel content of 1-2% for added corrosion resistance and toughne...
Regular price $24.60
Sale price $24.60
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Seats contain 18-22% Chromium for resistance to abrasion, corrosion and deformation. Nickel content of 1-2% for added corrosion resistance and toughness. Machined from solid bar stock and ground to...
10% Off
Regular price $310.34
Sale price $310.34
Regular price $344.95
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O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2008-2009 Honda CRF250R
10% Off
Regular price $310.34
Sale price $310.34
Regular price $344.95
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O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2011-2016 Kawasaki KX250F
10% Off
Regular price $310.34
Sale price $310.34
Regular price $344.95
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O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2013-2016 Honda CRF450R
10% Off
Regular price $310.34
Sale price $310.34
Regular price $344.95
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per 
O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2009-2012 Honda CRF450R
10% Off
Regular price $310.34
Sale price $310.34
Regular price $344.95
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per 
O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2002-2006 Honda CRF450R
10% Off
Regular price $377.99
Sale price $377.99
Regular price $419.95
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O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2013-2015 Gas Gas EC 250 F 2013-2015 Gas Gas EC 300 F 2001-2013 Yamaha YZ250F
10% Off
Regular price $310.34
Sale price $310.34
Regular price $344.95
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O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2007-2008 Kawasaki KX250F

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