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Collection:

Engine

25001 products
Powersport Superstore is your go-to source for Engine and related parts. Shop our unbeatable selection of Engine with top-tier service, fast shipping, and great prices.
55% Off
Regular price $136.44
Sale price $136.44
Regular price $299.99
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Kit includes: Multi-Angle helix, clutch weights, primary spring and secondary spring.. The clutch kit for real-world trail riding; improves efficiency and performance. Pull harder out of corners. ...
Regular price $16.34
Sale price $16.34
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Bronco offers OEM Replacement valves for both utility and sportmodel ATVs. OEM Replacement valves are made of durable SUH35B heat resistant steel that also come with fill Nitride finish for further...
Regular price $14.39
Sale price $14.39
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Namura offers high performance gaskets for the professional motorsports market. These gaskets are made with imported Australian Klingersil and other high tech materials. They provide greater reliab...
10% Off
Regular price $21.40
Sale price $21.40
Regular price $23.78
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WSM Replacement Ring Set.Vehicle Fitment:1992-1995 Polaris SL 650 1995 Polaris SL 650 Std
5% Off
Regular price $62.94
Sale price $62.94
Regular price $66.25
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These sets include the head, base, and upper end gaskets. They are designed for piston replacement. Includes all gaskets and seals from base gasket up..Vehicle Fitment:2009-2010 KTM 505SX
49% Off
Regular price $65.52
Sale price $65.52
Regular price $128.95
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EST (Extreme Sealing Technology) gasket kits include embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber material. Head gasket material allows heat to be drawn ...
Regular price $22.69
Sale price $22.69
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Precision Engineering and the use of first class materials guarantee that they meet or exceed O.E. standards. Specially designed.Vehicle Fitment:1996-2003 KTM 300 EXC
Regular price $38.17
Sale price $38.17
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Save money over OEM pricing. Interchanges directly with OEM parts.Vehicle Fitment:1998-2004 Honda TRX450FE FourTrax Foreman ES 1998-2004 Honda TRX450FM FourTrax Foreman S
10% Off
Regular price $24.26
Sale price $24.26
Regular price $26.95
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These sets include the head, base, and upper end gaskets. They are designed for piston replacement. Made in the USA.Vehicle Fitment:1979-1981 John Deere Trailfire 440
10% Off
Regular price $76.70
Sale price $76.70
Regular price $84.95
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KIT FEATURES:. All kits sold with valve, spring, retainer, seat to do complete replacement of either intake or exhaust side. All components are manufactured under iso 9001 certified factories. Nitr...
13% Off
Regular price $62.69
Sale price $62.69
Regular price $71.95
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KIT FEATURES:. All kits sold with valve, spring, retainer, seat to do complete replacement of either intake or exhaust side. All components are manufactured under iso 9001 certified factories. Nitr...
35% Off
Regular price $78.98
Sale price $78.98
Regular price $120.95
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per 
Namura offers high performance gaskets for the professional motorsports market. These gaskets are made with imported Australian Klingersil and other high tech materials. They provide greater reliab...
2% Off
Regular price $30.32
Sale price $30.32
Regular price $30.95
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Stainless steel, forged one piece construction. Extremely light and fast flowing. Chromed stems and stellite tips. Special thick margins and modified radius. Fully swirl polished. Black nitride coa...
14% Off
Regular price $431.50
Sale price $431.50
Regular price $499.95
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Designed to match OEM in appearance and specifications. Cast from AB4C aluminum with nikasil plated sleeves for excellent wear & durability. AT-09477 & AT-09478 require no case modification...
1% Off
Regular price $77.17
Sale price $77.17
Regular price $77.95
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Each ring set is for one piston. Wiseco rings only fit Wiseco pistons.Vehicle Fitment:2021 Yamaha WR450F 2020-2022 Yamaha YZ450F
5% Off
Regular price $140.63
Sale price $140.63
Regular price $148.03
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Fits: Kawasaki - ER-6F (EX 650) (06-11),ER-6F ABS (EX 650 ABS) (06-11),ER-6N (ER 650)(06-11),ER-6N ABS (ER 650 ABS) (06-11). CKF clutch kits include carbon fiber impregnated friction plates. Tough...
10% Off
Regular price $169.99
Sale price $169.99
Regular price $188.95
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Bore: 81.91mm Compression: Compression Not Available Sizing: 2.00mm OversizeSPECIFICATIONS. Displacement: 684cc. Bore - Standard: 78.00mm. Bore - Actual: 80.00mm. Bore - Oversize: 2.00mm. Stroke: 6...
10% Off
Regular price $146.99
Sale price $146.99
Regular price $162.95
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Bore: 53.95mm Compression: Standard Compression Sizing: Standard BoreSPECIFICATIONS. Displacement: 125cc. Bore - Standard: 54.00mm. Bore - Actual: 54.00mm. Bore - Oversize: STD. Stroke: 54.5mm. Not...

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