HARLEY-DAVIDSON Engines & Components

Wiseco Black Edition V-Twin Piston Kits

Wiseco offers Black Edition V-Twin piston kits for a wide range of Harley-Davidson® street bikes. They feature forged aluminum pistons with ArmorX coating for reduced wear and superior protection in extreme conditions. An ArmorFit skirt coating auto-adjusts to the cylinder wall (so there's no need to measure clearance), providing smooth, quiet, trouble-free operation. The pistons are available in a variety of bore sizes and other options. Order the kit recommended for your motorcycle. Additional product details: * Dome design for improved flame travel to maximize air/fuel burn efficiency * High compression (11:1) for added power * Superfinish piston pin reduces friction and improves scuff resistance * Enhanced pin oiling for improved lubrication and reduced friction * Augmented ring land details improve ring seal and function * Dedicated rings for precise fit, improved compression, and oil control * Kits include two pistons, rings, piston pins, and circlips

Not Yet Reviewed

$518.99

S&S Cycle Oil Pump Kits

If you're overhauling an older motorcycle engine or building a lubrication system from scratch, consider the turnkey ease of S&S Cycle oil pump kits. They offer the same width oil supply and return gears as a stock Harley-Davidson® aluminum pump, but these driveshaft gears increase potential oil volume delivery by 25 percent over stock on some engines. S&S pumps are machined with an oil pressure bleed-off passage, relieving pressure build-up on top of the valve to maintain consistent oil pressure. Excess oil is also routed directly to the supply side of the pump to reduce the amount returned to the tank—which means less foaming and cavitation. The kits are available for a variety of bikes, including Big Twin models. S&S Cycle oil pump kits include: * Complete oil pump assembly * Pinion shaft pump drive gear * Oil pump driveshaft gear * Breather gear * Mounting hardware * Fittings and gaskets * Instructions

Not Yet Reviewed

$715.95

S&S Cycle Late Twin Cam Easy Start Chain Drive Camshaft Kits

S&S Cycle Late Twin Cam Easy Start chain drive camshaft kits offer more performance for less money and more time to enjoy riding. These S&S camshaft kits allow your stock starter to start any engine. Plus, some kits reuse stock components and can be used with stock valve springs. Most Easy Start kits include the cams, gear cover gasket, cam bearings, and instructions. Installation doesn't take long and S&S offers many choices to meet your engine size and compression ratio. Here's an easier way to increase performance without emptying your wallet--S&S Cycle Late Twin Cam Easy Start chain drive camshaft kits.

Not Yet Reviewed

$540.95

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$549.95

Biker's Choice Rocker Boxes

Biker's Choice rocker boxes top your cylinders with the right fit, function, and value. They're made from quality materials and beautifully finished to add a bit of "curb appeal" to your motorcycle application.

Not Yet Reviewed

$640.53

S&S Cycle M8 Big Bore Cylinders

S&S Cycle M8 big bore cylinders are bolt-on sets for Milwaukee 8 models. They are available in a Wrinkle Black finish with or without highlighted fins. Select the set you would like.

Not Yet Reviewed

$682.95

Wiseco Powersports Piston Kits

Wiseco powersports piston kits include your rings, piston pin, and circlips. Wiseco has a decade of experience producing quality pistons for dirt bikes, ATVs, snowmobiles, outboard marine engines, and motorcycles. Their piston kits provide strong, lightweight pistons with optimized designs that improve engine efficiency and maximize your torque and throttle response. Plus, Wiseco powersports piston kits are produced right here in the USA. It's time to blaze your own trail with Wiseco powersports piston kits.

4.13 out of 5 stars ( 8 )

$644.99

Feuling Parts Race Series Oil Pumps

Engineered to the highest standards, Feuling Parts race series oil pumps are constructed out of 7075 billet aluminum and high-flow 4140 heat-treated chromoly gearotor gears. They're built to such strict standards and, being made of 7075 billet aluminum, have 50 percent greater strength than 6061 aluminum, with the ability to hold tighter tolerances at high temperatures. These well-engineered pumps can produce 40 percent more pressure than your stock pump and are capable of 60 percent more return volume, to reduce or eliminate blowby and wet sumping. All of these functional improvements add up to a more efficient motor, with cooler temperatures and more hp and torque to the rear wheel. They are available for various models and engine types--find the best fit for your application and get your ride running well-lubricated for that next road trip.

Not Yet Reviewed

$507.95

S&S Cycle Milwaukee 8 Chain Drive Camshaft and Dynojet PV-3 Kits

S&S Cycle Milwaukee 8 chain drive camshaft and Dynojet PV-3 kits are the first of their kind, offering a 475 cam, tuner in chain drive, and true 100+ hp at the wheel in one package. The kits are designed to work specifically with S&S's Stealth air cleaner kits and Mk45 mufflers with a stock header or their Eldorado exhaust system. Features and benefits: * Bolt-in performance * No need for expensive dyno tuning * Display vehicle data channels in real-time * Weather-resistant for use in all conditions * High-contrast display, viewable in direct sunlight Please note: * PV-3 module is preloaded with calibrations developed by S&S. These calibrations are secure and do not allow for any modifications. * Calibrations do not work on any Harley-Davidson® Softail models. * Calibrations do not work on 2020+ Harley-Davidson® Touring Models.

Not Yet Reviewed

$628.95

Wiseco Powersports Pistons

Wiseco has a decade of experience producing quality pistons for dirt bikes, ATVs, snowmobiles, outboard marine engines, and motorcycles. Their pistons provide strong, lightweight pistons with optimized designs that improve engine efficiency and maximize your torque and throttle response. Plus, Wiseco powersports pistons are produced right here in the USA. It's time to blaze your own trail with Wiseco powersports pistons.

Not Yet Reviewed

$518.99

S&S Cycle Hot Set-Up Piston and Ring Kits

S&S Cycle Hot Set-Up piston and ring kits include forged pistons, rings, wristpins, and clips. They are available in standard and oversized options for stock or S&S cylinder heads. Select the kit needed for your Big Twin setup.

Not Yet Reviewed

$617.95

S&S Cycle Twin Cam Cylinders

Boost your engine's performance with S&S Cycle's Twin Cam cylinders. The design, finish and workmanship of these cylinder replacements feature many improvements over stock units, including sturdier walls that are far less prone to warpage. Straighter, sturdier walls equals a better seal, and fit for pistons, and piston rings. An improved machining process also ensures a better surface for both the head and base gaskets. These cylinders feature ductile cast-iron sleeves in aluminum castings and are offered in silver and black wrinkle finish. Select the cylinders designed to fit your specific HD® model.

Not Yet Reviewed

$510.95