Availability
Sierra Marine offers high-quality replacement pistons for a variety of watercraft engine applications. The forged aluminum pistons with rings are available in different bore sizes. For rebuild or maintenance, restore the performance you expect with the piston model recommended for your boat.
Not Yet Reviewed
$23.99
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$78.99
Clearance
Sierra Marine piston rings are available in numerous sizes, thicknesses, and materials to complement your pistons. These OE replacement ring sets serve a variety of important roles, including sealing the combustion chamber, improving heat transfer from the piston to the cylinder wall, and regulating engine oil consumption. Order the rings designed to fit your application.
Not Yet Reviewed
$32.99
$16.50
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$41.99
Diamond Pistons Marine Series pistons are ideal for your high-demand boats. These forged aluminum pistons are significantly stronger than the factory pistons allowing your engine to handle that extra horsepower, high-rpm operation and long hours on the water. Diamond Pistons Marine Series pistons feature: * 3D milling on piston crowns for "ready to install" finish * Moly skirt coating for friction-loss and skirt-wear protection * Oversized valve pockets for "larger than stock" valve sizes * Forged 2618 or 4032 aluminum alloy (where specified) * Premium 8620 or H-13 steel wrist pins (where specified)
Not Yet Reviewed
$1,510.99
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$2,586.97
The Wiseco legacy is rooted in 2-stroke piston manufacturing and performance, dating back to 1941--over 80 years ago. Today, their pistons are the result of decades of experience, incorporating the latest in 2-stroke piston manufacturing and design to deliver the performance Wiseco built its name on. Wiseco Marine Forged Series 2-stroke piston kits are engineered, designed, and machined for each specific engine. The improved tensile strength of the forged aluminum material optimizes strength and service life, while these dedicated forgings, along with additional lightening operations, 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.
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$83.99
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$108.99
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.
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$93.99
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
$77.99
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$509.97
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!
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$44.99
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.
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$93.99
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$1,176.97
Clearance
If you're looking for pistons with an unbeatable combination of performance and value, then Speed-Pro hypereutectic pistons are for you. These pistons are manufactured from aluminum alloy that contains 16 percent silicon for greater strength and wear resistance. They're also molded in the latest permanent-mold technology to ensure the precise fit and tight bore clearances that today's top engine builders demand. Hypereutectic pistons are ideal for use in high performance street, bracket, and oval track racing—and will work perfectly with normal ring end gaps. Choose the model designed for your vehicle and engine application.
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$134.99
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$226.99
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.
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$812.75
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$1,058.23
Mahle is the world's largest manufacturer of piston rings. Their tremendous research and development and extensive OE connections mean that Mahle Original standard piston ring sets have the technological edge. Things like narrow compression rings, steel compression rings for gasoline engines, low-tension oil rings, and coated compression rings for diesels all came from OE. Mahle's entire Original line proves time and again that it should be the ring of choice under every hood - regardless of the application. Mahle Original standard piston rings offer high tensile strength, high yield strength, and excellent hardness with low ring mass. These factors lead to stress resistance, minimal groove pound-out, long service life, cylinder conformability, oil economy, and good blow-by control with low friction. Whether you're repairing a modern computer-controlled engine, or rebuilding an older engine, be sure to specify Mahle Original standard piston ring sets (formerly Perfect Circle) … trusted by professional automotive technicians for over 100 years.
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$80.99
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$100.99
Mahle Original replacement pistons have the same great OE features to provide the perfect fit and function in your vehicle. They offer things like compensated ring grooves to ensure proper ring loading and oil control; as well as expansion-controlled designs for small fitting clearances—to reduce engine noise, wear, emissions, and improved oil control. Choose the model designed for your vehicle and engine application.
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$41.99
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$205.99
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.
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$7.50
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$440.99
Whether it's a car, truck, motorcycle, marine, or performance racing—properly sealing the piston to the engine block is a requirement. Hastings Piston ring sets do just that, while being offered in many different options to fit virtually any piston out there. If the engine your working on is blowing smoke, using excessive oil, or at a loss for power, it may be time for new rings. Hasting piston ring sets are great for rebuilds or new builds. Hastings has been manufacturing piston rings since 1915 and they have not spent a second developing anything but piston rings. Trust the professionals at Hastings and use them on your next job.
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$9.50
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$453.99
Sealed Power plasma-moly piston ring sets feature heat-resistant plasma-molybdenum facing material. Plasma-moly is a relatively soft and porous ring facing with excellent oil carrying capacity and fast conformability (break-in) to the cylinder bore surface. They are a premium part of the comprehensive line of Sealed Power engine components that provide innovative designs, use leading edge materials, and utilize ISO and QS certified manufacturing to deliver top-quality products that meet the rigorous demands of both classic and today's modern engines. Features of and benefits of Sealed Power plasma-moly piston ring sets include: * Improved bond strength of plasma-moly provides excellent resistance to flaking * Controlled porosity of the coating results in improved top ring lubrication * Variety of top ring materials * Decreased friction * High melting point of moly for very high resistance to scuffing * Exacting tolerances * Meets or exceeds OEM specifications * Recommended for street use, marine use, and for racing where file fitting is not required
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$21.99
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$218.99
KB Performance Hyper piston and ring kits are offered for a wide range of applications from street and towing to marine and race. The kits feature pistons cast from 390 hypereutectic alloy heat-treated to T-6 standards to make them stronger. The pistons also feature fully machined crowns and valve pockets. KB hypereutectic pistons come in several head designs, as well as standard and oversized bore sizes. All KB Hyper pistons are lightweight to improve throttle response and rpm changes, while still being strong enough to withstand high compression and high temperatures. KB Performance Hyper kits (KT) are completed with piston ring sets containing top rings of moly-coated cast iron (M) or ductile iron (D).
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$148.99
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$729.99
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.
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$88.97
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$849.97
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
$143.97
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$233.97
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.
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$107.99
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$1,019.97
Wiseco powersports Tracker 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 help 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 powersports piston kits by Wiseco! Order the piston kit designed to fit your application.
Not Yet Reviewed
$219.99
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$287.99
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
$179.99
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$445.97
Mahle Original piston ring sets are designed to be installer-friendly. They are pre-lapped to seat immediately, virtually eliminating break-in time. Ring materials and coatings, as well as ring tension, are all optimized for reduced friction and extended life in each application. The compression rings feature a barrel-faced contact area for more efficient compression and CNC-controlled gap chamfer to optimize compression and reduce blow-by. Intermediate rings have a reverse twist design for better groove side sealing, and taper race machining to enhance contact. The CP-20 oil ring assemblies feature a 20 degree ear angle, an exclusive feature that provides the best possible side seal against the cylinder wall, and a special chemical polish on the oil ring expander offers enhanced oil drain back. Mahle Original piston ring sets provide unmatched quality and ease of installation, making them the rings of choice for today's engine builders.
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$80.99
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$123.99
Sealed Power Performance piston rings are made from ductile iron, and compression rings are available with moly, chrome, and plasma-moly facings for extra durability. These OE-quality sets will seal mild- to high-compression engines and help protect against oil blowby. They feature standard ring end gaps for easy installation. Find the bore dimension and ring thicknesses needed for your application.
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$85.99
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$99.99
Sealed Power chrome piston ring sets are noted for their high wear-resistance and low cylinder wear. The face of the top rings in these sets is electroplated with hard chromium to provide a surface that's resistant to abrasive wear. This face coating will not flake off, even when exposed to high vibration and detonation. Being harder and less porous than a moly ring, chrome rings provide increased life in engines that are operated in dusty or dirty environments. Chrome coatings are used mainly on top rings where mechanical and thermal loads are greatest, and on oil rings that have a particularly high unit pressure. With the load levels of modern internal combustion engines ever increasing, there's often a need to improve the thermal and/or mechanical load-carrying capacity of piston rings—and chrome is one solution. These piston rings are available in a wide range of bore sizes and thicknesses for applications from the 1940s and up. Features and benefits of Sealed Power chrome piston ring sets: * Increased wear resistance in dirty air conditions * Exacting tolerances * Meets or exceeds OEM specifications * State-of-the-art manufacturing * Recommended for use on dirt tracks and for off-road racing
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$76.99
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$77.99
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