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2003 HONDA Pistons & Piston Rings
Showing In Stock Items. Show All 40 Items.
Wiseco 4-Stroke Piston Rings
Manufactured to the highest standards to outperform the competition, Wiseco 4-stroke piston rings maximize your performance and keep you firing on all cylinders. These rings are crafted from various metals and with specific finishes for both street and track. Designed to underscore piston lubrication, reduce bore friction, and optimize the heart of your engine, Wiseco rings improve the overall function of your pistons and powerplant. The 4-stroke rings are intended for use in cast iron, NikaSil, boron composite, and electrofusion bores; certain rings are designed for limited coatings, such as the XJ with chrome bores and the XN with NikaSil bores. Match up the specs from your motorcycle with the size and type of piston ring replacements you need. You can always depend on race-proven Wiseco technology!
( 16 )
$30.99
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$51.99
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.
( 7 )
$107.99
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$394.97
Wiseco Piston Retaining Clips
Wiseco piston retaining clips are important hardware components for a wide variety of powersports equipment, including ATVs, UTVs, street and off-road bikes, snowmobiles, and personal watercraft. The steel circular wrist pins are designed to permit rotation within the piston, but prevent lateral movement. They're available in a variety of diameters and thicknesses to fit your specific application.
( 5 )
$2.99
Wiseco 2-Stroke Piston Rings
Wiseco 2-stroke piston rings improve the overall function of your pistons and powerplant to maximize performance and keep you firing on all cylinders. Manufactured to optimize piston lubrication and reduce friction, ensuring longer performance from the heart of your engine, these rings are crafted from various metals and with specific finishes for both street and track. The 2-stroke rings are intended for use in cast iron, NikaSil, boron composite, and electrofusion bores; certain rings are designed for limited coatings, such as CSM and CDM model rings with chrome bores. Just match up the specs from your motorcycle with the size and type piston ring replacements you need. You can always depend on race-proven technology from Wiseco!
( 6 )
$21.99
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$44.99
Hastings Premium Ductile Ring Sets
Whether it's a car, truck, motorcycle, marine, or performance racing application—properly sealing the piston to the engine block is a requirement. Hastings premium ductile ring sets do just that, and they're offered in many different options to fit virtually any piston. If the engine you're working on is blowing smoke, using excessive oil, or at a loss for power, it may be time for new rings. These premium ductile piston ring sets are great for rebuilds or new builds, daily drivers or performance vehicles. Order the sizes needed for your project.
( 147 )
$28.99
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$140.99
Wiseco Piston Lock Rings
These Wiseco piston lock rings are designed for floating-pin pistons. Engines produced with press-fit pins can be converted to the "floating" type, providing that the piston has provisions for a lock ring retainer. Floating pins are preferred by most serious engine builders.
( 16 )
$2.99
CP Pistons Wrist Pin Locks
CP Piston wrist pin locks are designed for floating-pin pistons. CP Piston wrist pin locks are manufactured from steel, making these wrist pin locks durable for all of your applications. Get a pair of these wrist pin locks today!
( 4 )
$3.25
JE Pistons Pro Seal Piston Rings
JE Pistons Pro Seal piston rings feature barrel-faced top rings made from premium ductile iron. They also have a special high-tech, friction-reducing, plasma-moly inlay on the face that combines molybdenum, nickel, chrome, and trace elements. The results are higher temperature resistance, reduced wear, better ring sealing, and reduced flaking. The second rings are a taper-faced, reverse-torsional design with a special phosphate coating. The oil-control rings are available in your choice of either low or standard-tension types. Choose the set designed for fitment on your engine application.
( 5 )
$30.99
Namura Technologies Piston Rings
These piston rings from Namura Technologies offer a steel top ring that has been gas nitrided. Plus, a second ring that is cast iron acts as a wiper and pushes the oil away from the combustion chamber. Some kits will also include an oil ring made of nitride coated stainless steel. These top-quality Namura Technologies piston rings will help to increase engine performance and are designed for years of durable use.
Not Yet Reviewed
$10.99
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$22.99
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.
( 8 )
$88.97
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$220.97
Wiseco Powersports Piston Wrist Pins
Choose Wiseco for your powersports piston wrist pins. They carry a variety of pins to suit most any applications in either chromed or un-chromed, straight or tapered styles, with no finish or their Superfinish. Wiseco powersports wrist pins are strong, lightweight, and can be used with OEM pistons.
( 3 )
$16.99
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$71.99
CP Pistons Honda K-Series Piston and Ring Kits
CP Pistons Honda K-Series piston and ring kits are as good as they come. Founded to service the needs of those with the desire to build engines of the highest quality and technology, CP Pistons uses proprietary tooling, dedicated cutters, and unique fixtures, along with state-of-the-art equipment to produce superior pistons that will not compromise your expectations. Their climate-controlled inspection department is the most advanced in the industry and is outfitted with computerized electronic equipment specifically designed for their needs. Each piston is engineered using sophisticated computer modeling for optimum designs, while their 5-axis machining capability enables them to create pistons for any application. Additional features include: * Full radius dome designs * Some pistons are suitable for turbo, nitrous oxide, and supercharged engines * Specific X-designated part numbers incorporate an X-style forging for additional strength, durability, and weight reduction * Available in standard or oversized * Deep valve relief depth accommodates high-lift camshaft * Made for +1mm valve sizes * Custom skirt cam and barrel design * Accumulator grooves * High-strength aluminum forgings * High performance rings * Fully CNC-machined and balanced to +/-1 gram * Wrist pins included at no additional cost * Double pin oilers, force fed oil ring * Pick lock grooves for easy lock removal * Pin fitting included
Not Yet Reviewed
$216.63
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$246.29
Wiseco Sport Compact Piston and Ring Kits
Wiseco sport compact piston and ring kits give you stronger pistons and tighter tolerances than any other part in your engine, with less internal and external machining. Wiseco's advanced forging process and extensive heat-treating and finishing processes ensure the performance and reliability that you demand from your engine. These kits' crown thickness and ring lands are designed for power-adders like turbos and blowers and nitrous oxide. They come complete with high-quality piston rings. Whether you're on or off of the street, you can depend on the maximum strength and minimum variance of Wiseco's aluminum-forged pistons for your sport compact vehicle. Choose the kit recommended for your make and engine application.
( 5 )
$992.99
Mahle PowerPak Piston and Ring Kits
Mahle PowerPak piston and ring kits include forged pistons, low-drag rings, steel pins, and wire locks—all in one race-proven package. The pistons are hand-deburred and then coated with dry phosphate to protect against ring micro-welding and pin galling during initial startup. For additional performance, Mahle added its proprietary Grafal anti-friction coating to the piston skirts. These replacement packages are available in a wide variety of size options for fitment with specific engines and pistons.
( 22 )
$631.10
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$805.41
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
$89.99
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$175.99
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
$295.16
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
$148.46
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$170.96
JE Pistons Sport Compact/European Pistons
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import, and sport compact applications. Engineered, forged and machined, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. JE Pistons sport compact/European pistons are engineered for extreme applications, up to and including professional competition. In this environment, the higher compression ratios, highest boost, or heavy nitrous usage necessitate the higher tensile strength of 2618 aluminum alloy. Their domed or dished tops require no deburring or preparation and feature smooth-flowing radii for excellent flame travel. High-quality wrist pins, locks, and JE Pro Seal premium piston rings are included. JE Pistons' performance has been proven in victory lane time and time again. Available individually and in sets, equip your engine with the best in forged pistons. Features: * Designed specifically for each engine and use application to provide optimized performance durability * Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin * Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise * Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
Not Yet Reviewed
$299.99
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$899.99
JE Pistons Ultra Series Pistons
JE Ultra Series pistons combine all of the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick-wall wrist pins, and a revolutionary new forging technology for the ultimate in strength. They are ready for massive power and boost right out of the box. Features of the JE Ultra Series pistons: * Grain flow optimized 2618 forging * Lateral gas ports improve ring seal * Ceramic crown coating—thermal barrier blocks combustion heat for durability and better exhaust scavenging characteristics * Perfect Skirt Coating—protects skirts, reduces friction, and eliminates cold-start piston slap and false knock on computer-controlled engines * Accumulator grooves reduce ring flutter at high rpm * Double broach pin oiling * Upgraded 9310 pins and locks—thicker, premium material wrist pins boosts strength * Carbon steel nitride rings
( 2 )
$349.99
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$1,124.99
Wiseco Racers Choice SuperMini Piston Kits
Wiseco Racers Choice SuperMini piston kits are the excellent choice for doing your bike rebuilds the right way! These top-end kits feature Wiesco's high-quality, forged pistons matched with high-quality components to provide you with the ultimate performance and durability for your SuperMini application. Meet the racing demands for strength and toughness by choosing the optimized performance of Wiseco Racers Choice SuperMini piston kits.
Not Yet Reviewed
$182.97
Wiseco Racers Choice GP-Series Piston Kits
Be the driving force in your powersports performance with Wiseco Racers Choice GP-Series piston kits! The Racers Choice GP-Series pistons are forged to be tough and durable to stand up to the abuse of high performance applications. With the pistons CNC-machined high-silicon aluminum alloy, Electra coating, removed boost ports, and high performance rings, your performance is optimized. Select the piston kit for your application needs.
Not Yet Reviewed
$207.97
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$224.97
Wiseco Sport Compact Pistons
Are people not looking twice at your sport compact? Give them more than a little surprise by installing a set of Wiseco sport compact pistons. These pistons are forged from either 4032 or 2168 aluminum alloy and are precisely CNC-machined to their final configuration. Where appropriate, designs incorporate the strength to deal with nitrous, turbos, or blowers. Chromoly wrist pins and Spirolox retainers are included. Order the size designed for fitment on your vehicle.
Not Yet Reviewed
$683.99
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.
( 2 )
$120.99
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$246.99
Pro-X Racing Parts Piston Clips
Pro-X Racing Parts offer a wide range of clips for many piston diameters in different styles compatible with Pro-X or OEM pistons. Piston clips are not just a circled wire, they are much more, as they avoid the pin to move in the piston bosses. Do not underestimate the forces on the pin during operation. Pro-X piston circlips are top-quality, direct replacement circlips, exceeding OEM specifications and tolerances. Shop for Pro-X pistons, clutch plates, pistons and other powersport racing parts that will get you to the finish line faster. Order the Pro-X piston clips designed to fit your application needs.
Not Yet Reviewed
$2.99
