YAMAHA Engines & Components

Hot Cams Valve Shims

Hot Cams valve shims will work with OEM cam adjustments, as well as hot cam adjustments. They are made from 4140 cold rolled steel and are available in several thicknesses and diameters. Hot Cams valve shims are a must for any powersports application to keep it running at full power.

4.33 out of 5 stars ( 6 )

$122.99

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$123.99

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.

4.0 out of 5 stars ( 7 )

$119.99

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$249.99

Hot Rods Connecting Rods

Hot Rods connecting rods are premium-quality replacements offered to you at an extremely affordable price. All of their rods are created from 8620 case hardened steel. But, in addition to that, they undergo a special forging process which helps to improve grain flow as well as dimensional consistency--and that means a rod of uncompromising strength. These connecting rods are built tough and tested to ensure maximum strength and durability. Don't be left behind because of a broken bike--keep your machines running in top-notch condition with these Hot Rods connecting rods!

4.0 out of 5 stars ( 1 )

$132.00

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$221.30

Pro-X Racing Parts Piston Kits

Pro-X Racing Parts piston kits furnish the pistons, rings, wrist pins, and circlip retainers to perform a relatively easy rebuild. Available for 2-stroke and 4-stroke models, these industry-leading pistons are CNC-machined for precision in either a cast or forged aluminum alloy--perfect for low friction and low expansion. Sleeved cylinder versions are made in both standard and oversized parts, while plated cylinder kits can be ordered in standard and A, B, C, and D oversizes. Pro-X Racing Parts piston kits are produced in a variety of OEM bore measurements for powersports equipment from makers like Yamaha, Kawasaki, KTM, Honda®, Husaberg, and Husqvarna. Ensure the best ride every time--replace or rebuild your pistons before they fail and cause more expensive problems.

Not Yet Reviewed

$109.99

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$199.99

Wiseco Powersports Pro-Lite Piston Kits

Wiseco powersports piston kits include your rings, piston pin, and circlips. These 2-stroke kits feature Pro-Lite pistons that are CNC-machined for optimal cam shape and profile, horsepower, and service life. Wiseco has a decade of experience producing quality pistons for dirt bikes, ATVs, snowmobiles, outboard marine engines, and motorcycles. Their piston kits offer strong, lightweight pistons with optimized designs to 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 )

$129.99

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$242.99

Hot Cams Drop-In Performance Camshafts

Hot Cams drop-in performance camshafts are one of the most economical, reliable, easy-to-install camshafts and add power gains to dirt bikes, ATVs, and UTVs. Hot Cams drop-in performance camshafts feature 8620 billet case-hardened steel and are CNC-machined for an exact fit and lobe profile. They are engineered to be drop-in cams that use stock valve springs in most cases and have multiple stages to choose from for many of the most popular applications. Stage 1 is designed for excellent bottom end, Stage 2 is designed for increased bottom to midrange performance, and Stage 3 is designed for top end performance.

5.0 out of 5 stars ( 2 )

$126.99

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$248.99

Wiseco Powersports 4-Stroke Forged Series Piston Kits

Wiseco powersports 4-stroke forged series piston kits include your rings, piston pin, and circlips. Wiseco has a decade of experience producing quality pistons for dirt bikes, motorcycles, ATVs, snowmobiles, and outboard marine engines. 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 these Wiseco powersports piston kits! Order the piston kit designed to fit your application.

3.0 out of 5 stars ( 2 )

$177.99

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$249.99

Wiseco Powersports 2-Stroke Forged Series Piston Kits

Wiseco powersports 2-stroke forged series piston kits include your rings, piston pin, and circlips. Wiseco has a decade of experience producing quality pistons for dirt bikes, motorcycles, ATVs, snowmobiles, and outboard marine engines. 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 these Wiseco powersports piston kits! Order the 2-stroke Forged Series piston kit designed to fit your application.

Not Yet Reviewed

$104.99

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$229.99

Kibblewhite Lightweight Racing Valve Spring Kits

Kibblewhite is dedicated to providing the best lightweight racing valve spring kits available. The folks at Kibblewhite have years of experience building the finest valvetrain products, and that experience has culminated in these lightweight valve springs. Each spring starts life as the finest quality super-clean, chrome-silicon wire that is wound to the most exacting standards. After the spring is wound, it goes through a rigidly controlled heat treatment, stress relief, and shot-peening process that ensures the longest lasting and strongest springs possible. These springs are perfect for today's high-revving motors, whether you are on the race track or the trail. Upgrade to these Kibblewhite lightweight racing valve spring kits today and stop worrying about when one of your stock springs is going to fail you.

Not Yet Reviewed

$163.81

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$207.81

Vertex Top-End Piston Kits

Vertex top-end piston kits are OEM-style replacements. These kits include everything needed to rebuild a top-end for the specific application selected. When applicable, the wrist pin bearing included is DLC-coated for added longevity. All piston skirts are coated with a high-tech molybdenum disulphide coating for faster break-in and increased piston life along with a T-5 hardening cycle. Rebuild your top-end without worries with Vertex top-end piston kits.

4.67 out of 5 stars ( 3 )

$135.86

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$181.76

Wiseco Marine 4-Stroke Forged Series Piston Kits

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, their forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you're looking for. Wiseco Marine Forged Series 4-stroke piston kits are engineered, designed, and machined for improved tensile strength and service life, while dedicated forgings allow for optimized strength-to-weight ratio. Each Wiseco forged piston kit includes high-quality piston ring(s), wrist pin(s), and circlips. Select the kit with the proper specs for your marine engine.

5.0 out of 5 stars ( 1 )

$221.99

Cylinder Works 2-Stroke Cylinder Heads

Cylinder Works 2-stroke cylinder heads are offered for use as OE replacements. These are new cast aluminum, bare, standard bore cylinder heads.

Not Yet Reviewed

$199.18

Pro-X Racing Parts Connecting Rod Kits

When the time comes to rebuild the motor in your dirt bike, ATV, or scooter, turn to Pro-X Racing Parts for OEM-quality connecting rod kits. These components are made out of tough alloys to tight tolerances for durability, dimensional consistency, and strength. The rods are barreled and shot-peened for smooth surfaces and double forged on dedicated forgings. Pro-X oiling slots maximize lower rod oiling and extend bearing life. Pro-X Racing Parts connecting rod kits will bring your motor back to life.

Not Yet Reviewed

$104.99

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$169.99

Namura Technologies Piston Kits

It's time to install higher performing pistons--without the higher price. Namura Technologies piston kits come with the piston individually wrapped, a set of OEM-quality rings packed in their own box, and wrist pins and clips. These Namura piston kits are direct replacements for OEM pistons with no modifications or dimensional adjustments needed. High-compression piston kits are also available for the speed freak in you. Due to their machined smooth heads, hard anodized crowns, and increased silicon content, Namura Technologies piston kits are an impressive buy. Don't pass up the opportunity to improve performance and increase power. Install these Namura Technologies piston kits in your ride today!

Not Yet Reviewed

$102.99

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$141.99

Vertex Replica Piston Kits

Quality you can see, power you can feel—Vertex Replica piston kits are choice replacements for precision performance. Available in 2- and 4-stroke, the Replica piston kits feature both cast and forged manufacturing processes, supplying the highest quality to meet your needs. And, Vertex offers A, B, C, and D sizes, so you can choose the proper fit for your cylinder. The difference in the sizes is 0.01mm (0.0004 in.) increments, with A being the smallest and D the biggest. Vertex Replica piston kit notes: * 2-stroke piston kits are gravity cast aluminum alloy with 18 percent silicone content, which produces an extremely light but very strong piston * 4-stroke pistons are forged from 2618 or 3032 alloys for superior strength and durability * All pistons are heat-treated with a T-5 hardening and tempering cycle * All piston skirts are treated with a high-tech molybdenum disulfide (MOS2) coating for faster break-in time and increased piston life * Standard pistons and rings are OEM replacements * Kits include piston, rings, wrist pin, and circlips

Not Yet Reviewed

$132.26

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$231.26

Pro-X Racing Parts Valve Shims

Pro-X Racing Parts offer valve shims for most models Japanese dirt bikes, Road bikes and ATV's and KTM applications. The valve shims are made of premium materials. Specific heat-treatment ensures hardness of the shims to offer maximum durability and less wear. Next to the specific heat-treatment the valve shims are precision machined to match exact size. The ProX valve shims are available in assortment boxes, as well as refill kits. Assortment boxes contain 7.48mm or 9.48mm shims for Japanese applications and 8.90mm and 10.00mm for KTM applications. Thicknesses range from 1.20mm up to 3.50mm. Incremental by 0.025 mm. Refill kits are available for each individual shim size and come in a package of five shims. Select the valve shims for your application needs.

Not Yet Reviewed

$104.99

Vertex High-Compression Piston Kits

Restore that crisp, clean power that your bike used to have. Vertex high-compression piston kits are a work of art and offer you an affordable way to increase horsepower while maintaining stock engine displacement. To handle the internal pressures of a 4-stroke engine, these pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability, and moly coated piston skirts for faster break-in time and increased piston life. The kits also include rings, a pin, and clips. Improve power and torque across the entire rpm range with Vertex.

Not Yet Reviewed

$207.99

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$235.99

All Balls Racing Crankshaft Bearings and Seal Kits

These All Balls Racing crankshaft bearing and seal kits contain right side and left side crankshaft bearings and seals, depending on your application. These crankshaft bearings feature Koyo and Nachi bearings (precision Japanese crank bearings). All Balls Racing crankshaft seals are designed with a carbon/fluorocarbon sealing lip to reduce "dry start" friction and crank pin wear. All Balls Racing crankshaft bearings and seal kits include all of the parts needed to do the job right!

5.0 out of 5 stars ( 1 )

$103.71

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$113.24

Namura Technologies Top-End Repair Kits

Top-end rebuilds can help to improve the performance of your ride, and Namura Technologies top-end repair kits will keep your ATV, UTV, or off-road motorcycle running in peak condition! They include everything you need: pistons, top-end gasket kit, and wrist pin bearings (where applicable) in one convenient, time-saving package. Namura kits are available for a wide variety of makes and models, with specific bore and compression ratio parts to service your specific vehicle. Choose to do your rebuild with repair kits from Namura Technologies—the people who make pistons with attitude!

5.0 out of 5 stars ( 2 )

$101.99

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$198.99

Vertex Big Bore Piston Kits

Vertex offers Big Bore piston kits for a variety of applications, including Kawasaki off-road bikes from the 1990s and up. All pistons are heat-treated with a T-5 hardening and tempering cycle, and all piston skirts are coated with a high-tech molybdenum disulphite coating for faster break-in time and increased piston life. Cast piston kits are gravity cast aluminum alloy (not forged) with 18 percent silicone content—which produces an extremely light but very strong piston. Forged pistons are forged from 2618 aluminum for superior strength and durability. Forged high-compression pistons improve power and torque across the entire RPM range. Big Bore pistons increase engine displacement, torque, and peak horsepower. Forged Replica pistons are forged OE replacements. Replica pistons and all rings are OEM replacements.

Not Yet Reviewed

$158.99

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$245.99

Cylinder Works Power Valve Kits

If you have a broken power valve on your off-road machine, Cylinder Works power valve kits offer you quick and affordable access to OEM-quality replacements. Standard bore and a big bore version are available to provide long-lasting quality you can depend on. Regulate your exhaust port to reach optimal power and rev level ride after ride with Cylinder Works power valve kits.

1.0 out of 5 stars ( 1 )

$222.26

Wiseco Racers Choice 2-Stroke Powersports Pistons

Wiseco Racers Choice 2-Stroke Powersports piston furnish the highest quality forged aluminum pistons for dirt bikes, ATVs, snowmobiles, outboard marine, and motorcycles. Their cutting-edge designs coax maximum performance: increased power and instantaneous response! Many kits include top end rings, pins, and gaskets to make it simple for racers and engine builders to complete the necessary upgrades. As with all engine components, locate the Wiseco piston model that's a compatible fit with your vehicle.

Not Yet Reviewed

$189.99

Wiseco Powersports 2-Stroke Racer Elite Series Pistons

Wiseco offers powersports 2-stroke Racer Elite Series pistons for a wide range of KTM, Husaberg, Husqvarna, KTM, Gas Gas, Honda©, Kawasaki, Suzuki, and Yamaha off-road bikes from 1993 and up. Engineered, tested, and proven for high-level racing applications, these forged aluminum pistons deliver factory-level performance through industry-leading innovation and experience. Racer Elite 2-stroke pistons set a new standard with proprietary technology and dyno-proven performance in a USA-made forged piston package. Additional product details: * Designed for full-race applications * Engineered to be the most advanced 2-stroke pistons on the market * Industry's first 2-stroke piston to be forged with 2000-Series alloy, providing greater tensile strength * Optimized design for extreme conditions and racing applications * ArmorFit skirt coating conforms to the bore for the ultimate in piston control and wear * ArmorPlating coating protects and improves performance in three main areas: -- Protects the crown from harmful detonation -- Protects pin bore for decreased wear and bore deformation -- Enhanced ring seal for long life and performance * Improved performance, utilizing premium quality rings with enhanced dimensional control, which results in improved sealing and power increases

Not Yet Reviewed

$199.99

Hot Rods Crankshaft Bearing and Seal Kits

Hot Rods crankshaft bearings and seal kits are the ideal alternatives to expensive OEM bearings and seals. These precision, high-quality crank bearing and seal kits complement Hot Rods' crankshaft assemblies. Hot Rods offers two crankshaft bearings and two seals to complete your installation.

Not Yet Reviewed

$100.65

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$115.85