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Engine - Valve Train - Valve Seats

47 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 $20.43
Sale price $20.43
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All applications listed use two intake and 2 exhaust seats unless otherwise noted. Head Diameter: 34mm. 1.339in. x 1.024in. x .375in. OD x ID x Height. Premium valve seats for applications using s...
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 $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...
10% Off
Regular price $328.99
Sale price $328.99
Regular price $365.95
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O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2009-2010 Kawasaki KX250F
10% Off
Regular price $328.99
Sale price $328.99
Regular price $365.95
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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:2007-2024 Suzuki RM-Z250
10% Off
Regular price $352.99
Sale price $352.99
Regular price $391.95
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O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2009-2018 Kawasaki KX450F
10% Off
Regular price $328.99
Sale price $328.99
Regular price $365.95
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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
Regular price $290.95
Sale price $290.95
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Description:. Our Sea-Doo Performance Valve Guides provide greatly improved durability for performance applications. Features:. Constructed of Aluminum/Bronze/Nickle Alloy. Dramatically improves re...
10% Off
Regular price $328.99
Sale price $328.99
Regular price $365.95
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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:2015-2020 Yamaha WR250F 2014-2018 Yamaha YZ250F 2015-2020 Yamaha YZ250FX
10% Off
Regular price $328.99
Sale price $328.99
Regular price $365.95
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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:2011-2016 Kawasaki KX250F
10% Off
Regular price $328.99
Sale price $328.99
Regular price $365.95
Unit price
per 
O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2007-2008 Kawasaki KX250F
10% Off
Regular price $352.99
Sale price $352.99
Regular price $391.95
Unit price
per 
O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2006-2008 Kawasaki KX450F
10% Off
Regular price $385.99
Sale price $385.99
Regular price $428.95
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O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2003-2009 Yamaha WR450F 2011-2015 Yamaha WR450F 2003-2009 Yamaha YZ450F
Regular price $32.20
Sale price $32.20
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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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per 
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...
10% Off
Regular price $328.99
Sale price $328.99
Regular price $365.95
Unit price
per 
O.E.M.-quality valves and springs. Moly paste for cam lobe and buckets included. Made in USA.Vehicle Fitment:2008-2024 Suzuki RM-Z450 2010 Suzuki RMX450Z 2017-2019 Suzuki RMX450Z
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 $24.44
Sale price $24.44
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Quantity: Pkg. of 1. Outside Diameter: 54.97mm / 2.164in. Inside Diameter: 44.45mm / 1.750in. Height: 11.43mm / 0.450in.. Tests have proven that the machinability, wear and thermal conductivity su...

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