New to Powersport Superstore? Try our Year-Make-Model search and find the right parts for your ride by clicking "My Garage" on the upper-right! ➡

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.
12% Off
La Sleeve H5291 Cylinder Sleeve - 54.00mm Bore
$124.44
$124.44
$141.95
Original cylinder bore is chrome plated, nikasil, or electrofused. Re-sleeve worn or seized cylinders with sleeves manufactured by LA Sleeve Co. An economical solution available for riders, racers...
11% Off
La Sleeve FL5479 Cylinder Sleeve - 48.00mm Bore
$115.31
$115.31
$129.95
Original cylinder bore is chrome plated, nikasil, or electrofused. Re-sleeve worn or seized cylinders with sleeves manufactured by LA Sleeve Co. An economical solution available for riders, racers...
11% Off
La Sleeve KA5358 Cylinder Sleeve - 52.50mm Bore
$115.31
$115.31
$129.95
Original cylinder bore is chrome plated, nikasil, or electrofused. Re-sleeve worn or seized cylinders with sleeves manufactured by LA Sleeve Co. An economical solution available for riders, racers...
12% Off
La Sleeve H5466 Cylinder Sleeve - 54.00mm Bore
$124.44
$124.44
$141.95
Original cylinder bore is chrome plated, nikasil, or electrofused. Re-sleeve worn or seized cylinders with sleeves manufactured by LA Sleeve Co. An economical solution available for riders, racers...
11% Off
La Sleeve FL5140 Cylinder Sleeve - 47.50mm Bore
$115.31
$115.31
$129.95
Original block has cast in sleeve liner in the cylinder. Re-sleeve worn or seized cylinders with sleeves manufactured by LA Sleeve Co. An economical solution available for riders, racers and engin...
12% Off
La Sleeve FL5420 Cylinder Sleeve - 54.00mm Bore
$124.44
$124.44
$141.95
Original cylinder bore is chrome plated, nikasil, or electrofused. Re-sleeve worn or seized cylinders with sleeves manufactured by LA Sleeve Co. An economical solution available for riders, racers...
La Sleeve H5159 Cylinder Sleeve - 97.00mm Bore
$128.06
$128.06
Re-sleeve worn or seized cylinders with sleeves manufactured by LA Sleeve Co. An economical solution available for riders, racers and engine builders everywhere. Centrifugal castings used in these ...
S&S Cycle 33-4124 Pinion Gear - Blue
$138.25
$138.25
High-quality pinion gears are carefully machined, heat treated and then finish ground. Each size is color-coded to match a stock equivalent gear. Gears from the middle of the range are recommended ...
Wossner 8784DA Piston Kit - 94.95mm
$204.00
$204.00
Bore: 94.95mm Sizing: Sizing Not AvailableWossner (pronounced Werssner) Pistons, Germanys finest aftermarket forged piston company brings precision and quality to North America. Top European racers...
Hinson Racing FSC313-8-1401 Clutch Plate and Spring Kit
$199.99
$199.99
Includes fiber and steel clutch plates with springs. Can be used with OEM baskets, inner hubs and pressure plates. Developed with and recommended to enhance the performance of Hinson clutch baskets...
15% Off
Hot Rods CBK0056 Bottom End Kit
$563.51
$563.51
$662.95
Hot Rods Bottom End kits include everything needed to complete crankshaft installation:. Hot Rods main bearings and seals kit (Main seals included when applicable). Complete engine gasket set inclu...
5% Off
Hot Rods 4093 Crankshaft Assembly
$477.80
$477.80
$502.95
All new assembly sold complete with Hot Rods connecting rod. Factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance. Ready for installation. ...
9% Off
Athena P400210600613 Top End Gasket Kit
$144.64
$144.64
$158.95
Superior quality gasket sets from Athena S.P.A. Steel core materials feature high springback and superior tensile strength. Revolutionary transparent coating guarantees a perfect seal even at extre...
Athena P400510475004 Waterpump Repair Kit
$45.31
$45.31
Each kit comes with Water Pump Gasket, Clutch Cover Gasket, Water Pump Shaft Oil Seals and relevant washers. Kit content may vary by model. (note: this does not come with the mechanical water pump ...
8% Off
Athena P4C0664083001B Top End Piston Kit - Cast 2-Stroke Piston 66.35mm - Top End Gasket Kit
$163.90
$163.90
$178.95
THE PERFECT COMBINATION OF TWO ESSENTIAL ENGINE COMPONENTS. Having two products in one kit that work perfectly together for an excellent result. Athena presents on the market the new Top End Piston...
8% Off
Athena P4C0664083001A Top End Piston Kit - Cast 2-Stroke Piston 66.34mm - Top End Gasket Kit
$163.90
$163.90
$178.95
THE PERFECT COMBINATION OF TWO ESSENTIAL ENGINE COMPONENTS. Having two products in one kit that work perfectly together for an excellent result. Athena presents on the market the new Top End Piston...
7% Off
Wiseco VIT039 Titanium Intake Valve
$103.73
$103.73
$110.95
Material: TitaniumTitanium valves are stronger and more reliable than OEM because they are forged as one unit, rather than pieced together like stock valves. Treated with either CVD or CNI (dependi...
10% Off
Wiseco PK1214 Top End Kit - Standard Bore 47.50mm
$163.99
$163.99
$181.95
Bore: 47.50mm Compression: Standard Compression Sizing: Standard BoreSPECIFICATIONS. Displacement: 85cc. Bore - Standard: 47.50mm. Bore - Actual: 47.50mm. Bore - Oversize: STD. Stroke: 47.8mm. Note...
Secure, Trusted, and Encrypted

Protected by industry-leading 256-bit SSL encryption and backed by Shopify’s PCI DSS–compliant infrastructure. Every page, click, and transaction is encrypted and monitored for threats — so you can shop with confidence knowing your data stays protected.

Parts for Every Machine

We stock aftermarket parts, gear and accessories for motorcycles, ATVs, UTVs, snowmobiles, personal watercraft, and even performance cars — all backed by expert support and live inventory.

Real-Time Fitment Accuracy

Search by Year, Make, and Model with confidence. Our proprietary vehicle fitment system ensures you’re only shown what fits — no guesswork, no returns — just parts that fit.

Fast, Trackable Shipping

We ship from over 20 U.S. warehouses — often same or next business day. Every order includes tracking and transparent fulfillment updates from start to finish, all processed through a secure, encrypted checkout.

Quick Links

Ride With Us. Stay Connected.

Follow us for real-time fitment updates, gear drops, and pro tips from the garage. No spam, just parts, tech, and news for riders like you.

Your Garage

Add a Vehicle