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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.
10% Off
Wiseco PK1220 Top End Kit - 0.50mm Oversize to 73.50mm, 10.5:1 Compression
$231.99
$231.99
$257.95
Bore: 73.50mm Compression: 10.5:1 Compression Sizing: 0.50mm OversizeSPECIFICATIONS. Displacement: 252cc. Bore - Standard: 73.00mm. Bore - Actual: 73.50mm. Bore - Oversize: 0.50mm. Stroke: 59.5mm. ...
10% Off
Wiseco WPP3009 Clutch Basket
$278.99
$278.99
$309.95
Forged from lightweight, high strength, certified, aerospace grade, aluminum alloy. Wisecos CNC machining process produces each component dimensionally the same as the next. Weight-saving relief cu...
Namura Technologies NX-40000-CK1 Top End Repair Kit (C) - Standard Bore 53.96mm, 8.9:1 Compression
$94.14
$94.14
Bore: 53.96mm Compression: 8.9:1 Compression Sizing: Standard BoreCeramic Composite Cylinder. Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit. MOS2 (Teflon/M...
Comet 203592A 30 Series Assymetric Polyester Drive Belt - 3/4in. Top Width - 30 1/4in. Outside Cicumference
$43.54
$43.54
Center distance when used with: 6in. Diameter Driven: 8 3/16 - 8 1/4in. Center distance when used with: 7in. Dimaeter Driven: 7 5/16 - 7 3/8in. Outside Circumference: 30 1/4in. Number marked on bel...
Comet 203578A Belt for Comet Model 20 Clutch
$42.05
$42.05
Outside Circum. - 27.35in. Symmetric-type clutch 3/4in W x .40in thick.
Comet 203579A Belt for Comet Model 20 Clutch
$42.05
$42.05
Outside Circum. - 28 21/64in.. Symmetric-type clutch 3/4in W x .40in thick.
10% Off
Pro-X 16.CPS27006 Complete Clutch Plate Set
$154.99
$154.99
$171.95
Complete Clutch Plate Set Features:. Manufactured by the leading OEM factories. Made to exact OEM specifications to offer maximum performance and durability. Complete friction, Steel plate and spri...
Kibblewhite Precision 82-82620 Intake Valve Guide
$28.81
$28.81
We choose to use C63000 nickel bronze as a material to make valve guides because of its ideal characteristics for the application. The 4-5 percent nickel content produces superior resistance to wea...
24% Off
Kibblewhite Precision 30-30015 Valve Spring Kit
$118.93
$118.93
$156.95
Type: Intake / Exhaust. Retainer Material: Titanium. Valve Lift: 0.465in. Installed Height: 1.210in. Seat Pressure: 70#. Open Pressure: 185#. @ Lift: 0.400in.. Designed for maximum performance fea...
Kibblewhite Precision 80-80916 Black Diamond Exhaust Valve
$40.63
$40.63
Must Use Spring Kit. The piston, rings, valves and pin clips in this kit are designed to work together as a system. They are NOT COMPATIBLE with O.E.M. components and should ONLY be used with the c...
Kibblewhite Precision 80-82312 Black Diamond Intake Valve
$40.96
$40.96
Black Diamond valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction. Sold individually.Vehicle Fitment:202...
0% Off
Kibblewhite Precision 80-82350 Intake Only Stainless Conversion Valve/Spring Kit
$172.15
$172.15
$172.95
Titanium intake valve face recession is the most commonly repeated expensive repair on todays late model 4-strokes. Kibblewhite stainless valves and spring kits have proven to extend the intake lif...
Comet 217633A CSC 400 Series Clutch - 10 Teeth Comet 217633A CSC 400 Series Clutch - 10 Teeth
$81.84
$81.84
Teeth: 10. Key: 3/16in. Bore: 3/4in. Pitch: 40/41. A: 4in. B: 1in. C: 1.77in. D: 2.22in.. Single Sprocket. Self Contained. 400 Series clutches have more contact surface than most competitors and b...
Comet 209940A1 Cam Arm with Bushing for 108 4-Pro - A-1 (mod.) - 47.3 grams
$34.07
$34.07
Cam arm markings -. Can arms will not always be stamped with the name they are called because they are often made from another cam arm. Actual gram weights of arms may vary from wieghts listed here...
10% Off
Wiseco 4904M07700 Piston Kit - Standard Bore 77.00mm, 13.5:1 Compression
$209.99
$209.99
$232.95
Bore: 77.00mm Compression: 13.5:1 Compression Sizing: Standard BoreSPECIFICATIONS. Displacement: 250cc. Bore - Standard: 77.00mm. Bore - Actual: 77.00mm. Bore - Oversize: STD. Stroke: 53.60mm. Cyli...
Boyesen SC-05M Factory Ignition Cover - Magnesium
$119.05
$119.05
Cast from the highest quality aluminum. Seals perfectly to keep out dirt and moisture. Covers come with gaskets. Holds clutch cable more securely (Yamaha YZ models). Give your bike the Factory Work...
Boyesen CCG-11A Factory Clutch Cover Gasket
$22.74
$22.74
Cast from the highest quality aluminum. Covers come with the gaskets Seals perfectly to keep out dirt and moisture. Gives your bike the Factory Works look. Cover gaskets may be used with stock or F...
Boyesen CC-37AL Factory Clutch Cover - Blue
$115.30
$115.30
Set your ride apart from the rest with the ultimate look in race performance. Lightweight factory clutch covers provide years of outstanding protection; guaranteed not to warp. Individually surface...
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