Snowmobile Piston and Ring Kits
Snowmobile Piston and Ring Kits at JJ Motorsports
Rebuild or upgrade your snowmobile's engine with premium piston and ring kits from JJ Motorsports. Our selection includes forged and cast pistons designed for superior strength, reduced thermal expansion, and optimal heat transfer in extreme cold conditions. Compatible with Yamaha, Polaris, Arctic Cat, Ski-Doo, and more, these kits feature high-silicone aluminum alloys, ArmorGlide® skirt coatings, and complete components like rings, wrist pins, circlips, and gaskets to enhance durability, efficiency, and power output for 2-stroke engines. Ideal for trail sleds, mountain climbers, or utility models, they ensure precise fitment, quick break-in, and long-lasting performance for DIY mechanics or professional shops.
Shop trusted brands like Parts Unlimited for cast assemblies and Wiseco for forged kits. Explore related categories such as snowmobile engine gaskets & kits for sealing solutions or snowmobile valves & parts for complete overhauls.
Top Snowmobile Piston and Ring Kits Products
- PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8272 – High-performance cast piston with super-high silicone content for strength, MOS2-coated skirts for wear resistance, includes rings, wrist pins, and circlips for Yamaha models.
- WISECO Piston Kit - Polaris SK1396 – Forged from high-silicone 4988 aluminum alloy for exceptional strength, includes rings, wrist pins, circlips, and top-end gasket with ArmorGlide® coating for Polaris 794cc 2-stroke engines.
- WISECO Piston Kit - Arctic Cat SK1397 – Precision-forged 4032 aluminum piston kit with ArmorGlide® skirt coating, includes rings, pins, circlips, and gasket for Arctic Cat M8000 794cc 2-stroke models 2014-2017.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Wiseco Piston Kit Arctic Cat 2006-2009 Prowler 650 Standard SK1260
WISECO
$349.95When you're rebuilding the top end of your 2006-2009 Arctic Cat Prowler 650, you need pistons that can handle sustained high RPMs without compromise. The Wiseco SK1260 kit eliminates the guesswork by pairing forged pistons with matched rings, pins, and...SK1260- SKU:
- SK1260
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- PRODUCT NAME:
- REBUILD KIT
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- SNOW
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COOLING SYSTEM:
- FAN COOLED
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- KIT
- BORE SIZE METRIC:
- 66.50 MM
- DISPLACEMENT:
- 438 CC
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 66.42 MM
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 63.00 MM
- TYPE:
- TOP END
$349.95Qty in Cart: 0Quantity:Price:$349.95Subtotal: -
Wiseco Piston Kit Arctic Cat Thundercat 1000 1998-2002 SK1265
WISECO
$554.95If you're running a Thundercat 1000, factory pistons won't cut it when you're pushing the engine hard. Wiseco's SK1265 kit replaces worn or damaged top-end components with precision-engineered pieces designed to handle sustained performance and extreme...SK1265- SKU:
- SK1265
- Availability:
- Ships Same Business Day
- Weight:
- 3.38 LBS
- DISPLACEMENT:
- 1000 CC
- MODEL:
- PRO-LITE
- RIDING STYLE:
- SNOW
- SKIRT COATING:
- NON-COATED
- TYPE:
- TOP END
- UNITS:
- KIT
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 64.60 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 80.90 MM
- BORE SIZE METRIC:
- 81.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- PRODUCT NAME:
- REBUILD KIT
$554.95 -
Wiseco 700 RMK 1997-2004 Piston Kit Standard SK1272
WISECO
$450.95A quality piston kit is critical for rebuilding or refreshing your 700 RMK engine—it directly impacts power delivery, reliability, and how long your sled will run between rebuilds. Wiseco's high-silicone alloy construction handles extreme temperatures...SK1272- SKU:
- SK1272
- Availability:
- Ships Same Business Day
- Weight:
- 2.44 LBS
- PISTON DIAMETER METRIC:
- 80.89 MM
- RIDING STYLE:
- SNOW
- UNITS:
- KIT
- DISPLACEMENT:
- 700 CC
- SKIRT COATING:
- ARMORGLIDE®
- BORE SIZE METRIC:
- 81.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 68.00 MM
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
$450.95 -
Wiseco Piston Kit 70.50mm Standard Bore 2003 Polaris 500 Classic SK1281
WISECO
$423.95When your 2003 Polaris 500 Classic demands more from its 2-cycle engine, a quality piston kit is non-negotiable. Wiseco's SK1281 delivers the precision-forged construction and matched ring set your rebuild needs to restore power and reliability. This...SK1281- SKU:
- SK1281
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 70.50 MM
- DISPLACEMENT:
- 500 CC
- PISTON DIAMETER METRIC:
- 70.37 MM
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- SNOW
- STROKE LENGTH METRIC:
- 64.00 MM
- TYPE:
- TOP END
- COOLING SYSTEM:
- LIQUID COOLED
$423.95Qty in Cart: 0Quantity:Price:$423.95Subtotal: -
Wiseco Piston Kit 72mm Bore for 1999-2003 Polaris 800 XCR SK1296
WISECO
$549.95When you're rebuilding a 1999-2003 Polaris 800 XCR, settling for stock internals leaves serious performance on the table. The Wiseco SK1296 piston kit delivers the durability and precision needed to handle aggressive riding conditions, featuring forged...SK1296- SKU:
- SK1296
- Availability:
- Ships Same Business Day
- Weight:
- 2.94 LBS
- RIDING STYLE:
- SNOW
- STROKE LENGTH METRIC:
- 65.00 MM
- UNITS:
- KIT
- BORE SIZE METRIC:
- 72.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- PISTON DIAMETER METRIC:
- 71.95 MM
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 794 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
$549.95 -
Wiseco Piston Kit for Ski-Doo MX Z 600 1999-2001 77mm 1.00mm Oversize SK1304
WISECO
$484.95When your Ski-Doo MX Z 600 needs a top-end refresh, a quality piston kit determines whether you get marginal gains or genuine performance restoration. Wiseco's high-silicone alloy pistons minimize thermal expansion and deliver the durability required for...SK1304- SKU:
- SK1304
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 76.86 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 65.80 MM
- UNITS:
- KIT
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 76.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- DISPLACEMENT:
- 613 CC
- SKIRT COATING:
- ARMORGLIDE®
$484.95 -
WISECO Piston Kit - Polaris SK1305
WISECO
$407.95If you're pushing your Polaris engine to the limit, stock pistons won't cut it. The Wiseco SK1305 kit delivers the thermal stability and durability needed for sustained high-RPM performance, while the complete component package—pistons, rings, pins, and...SK1305- SKU:
- SK1305
- Availability:
- Ships Same Business Day
- Weight:
- 2.74 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 72.91 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE SIZE METRIC:
- 73.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- DISPLACEMENT:
- 544 CC
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- RIDING STYLE:
- SNOW
- STROKE LENGTH METRIC:
- 65.00 MM
$407.95Qty in Cart: 0Quantity:Price:$407.95Subtotal: -
WISECO Piston Kit - Ski-Doo SK1323
WISECO
$394.95When you're rebuilding a 2-cycle top-end, piston quality directly impacts reliability, power delivery, and engine longevity. Wiseco's SK1323 kit eliminates the guesswork of sourcing individual components—everything you need arrives together, matched and...SK1323- SKU:
- SK1323
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- COOLING SYSTEM:
- LIQUID COOLED
- PISTON DIAMETER METRIC:
- 69.87 MM
- PRODUCT NAME:
- REBUILD KIT
- ENGINE TYPE:
- 2-STROKE
- BORE SIZE METRIC:
- 69.50 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- SNOW
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 506 CC
- MODEL:
- PRO-LITE
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 65.80 MM
- TYPE:
- TOP END
- UNITS:
- KIT
$394.95 -
Wiseco Piston Kit Yamaha SX Viper 700 Mountain 2003-2006 SK1325
WISECO
$584.95The Wiseco Piston Kit SK1325 is engineered specifically for the Yamaha SX Viper 700 Mountain (2003-2006) to restore or upgrade your engine's compression, thermal stability, and overall reliability under sustained high-RPM operation. Whether you're...SK1325- SKU:
- SK1325
- Availability:
- Ships Same Business Day
- Weight:
- 3.28 LBS
- COOLING SYSTEM:
- LIQUID COOLED
- SKIRT COATING:
- ARMORGLIDE®
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON DIAMETER METRIC:
- 68.87 MM
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 69.00 MM
- DISPLACEMENT:
- 696 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 62.00 MM
- UNITS:
- KIT
$584.95 -
Wiseco Piston Kit Arctic Cat King Cat 900 2004-2006 SK1329
WISECO
$414.95When your Arctic Cat King Cat 900's top end starts showing wear, a quality piston kit isn't just a rebuild—it's insurance against catastrophic failure and a path back to factory performance. Wiseco's SK1329 kit delivers the precision-engineered...SK1329- SKU:
- SK1329
- Availability:
- Ships Same Business Day
- Weight:
- 3.28 LBS
- MODEL:
- PRO-LITE
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- DISPLACEMENT:
- 862 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- COOLING SYSTEM:
- LIQUID COOLED
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 85.00 MM
- PISTON DIAMETER METRIC:
- 84.87 MM
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 76.00 MM
$414.95 -
Wiseco Piston Kit Yamaha Phazer 480 1984-1998 SK1035
WISECO
$329.95A worn or damaged piston severely limits your Phazer 480's performance and can lead to catastrophic engine failure if left unaddressed. Wiseco's complete piston kit delivers the reliability and precision needed to restore full power output while...SK1035- SKU:
- SK1035
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- DISPLACEMENT:
- 485 CC
- PISTON DIAMETER METRIC:
- 71.90 MM
- SKIRT COATING:
- ARMORGLIDE®
- COOLING SYSTEM:
- FAN COOLED
- BORE SIZE METRIC:
- 72.00 MM
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 59.60 MM
- UNITS:
- KIT
$329.95Qty in Cart: 0Quantity:Price:$329.95Subtotal: -
Wiseco Piston Kit Yamaha Phazer 480 1984-1998 72.50mm SK1036
WISECO
$329.95When you're rebuilding a 1984-1998 Yamaha Phazer 480, settling for OEM components means leaving performance on the table. Wiseco's SK1036 piston kit delivers the strength and thermal stability that 2-stroke engines demand, especially if you're pushing...SK1036- SKU:
- SK1036
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- BORE - OVERSIZE:
- +0,50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 59.60 MM
- UNITS:
- KIT
- COOLING SYSTEM:
- FAN COOLED
- DISPLACEMENT:
- 491 CC
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 72.00 MM
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 72.40 MM
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- SKIRT COATING:
- ARMORGLIDE®
$329.95 -
Wiseco Piston Kit Yamaha VK540 1988-2011 SK1045
WISECO
$349.95A worn or damaged piston compromises combustion efficiency and engine reliability—especially in high-RPM two-stroke applications. The Wiseco SK1045 delivers the precision engineering and thermal stability needed for complete engine rebuilds on Yamaha...SK1045- SKU:
- SK1045
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- MODEL:
- PRO-LITE
- RIDING STYLE:
- SNOW
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 64.00 MM
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +0,50 MM
- PISTON DIAMETER METRIC:
- 73.40 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- UNITS:
- KIT
- BORE SIZE METRIC:
- 73.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- DISPLACEMENT:
- 543 CC
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- REBUILD KIT
$349.95 -
Wiseco Piston Kit Polaris 500 Classic 1989-1997 SK1066
WISECO
$409.95When your 500 Classic demands serious power and reliability, a complete piston kit overhaul is non-negotiable. Wiseco's high-silicone forged construction handles the thermal stress of aggressive riding while maintaining tight tolerances—critical for...SK1066- SKU:
- SK1066
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- PISTON DIAMETER METRIC:
- 72.87 MM
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 60.00 MM
- BORE - OVERSIZE:
- +1,00 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- COOLING SYSTEM:
- LIQUID COOLED
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 72.00 MM
- DISPLACEMENT:
- 502 CC
- MODEL:
- PRO-LITE
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
$409.95 -
Wiseco Piston Kit Polaris 500 Classic 1989-1997 Liquid Cooled SK1067
WISECO
$409.95Your Polaris 500 Classic demands pistons engineered to handle sustained high-RPM operation without sacrificing reliability. Wiseco's SK1067 kit delivers the durability and thermal stability required for serious riding, whether you're pushing your sled to...SK1067- SKU:
- SK1067
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- DISPLACEMENT:
- 509 CC
- STROKE LENGTH METRIC:
- 60.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +1,50 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +1.50 MM
- BORE SIZE METRIC:
- 72.00 MM
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 73.37 MM
- RIDING STYLE:
- SNOW
$409.95 -
Wiseco Piston Kit for Polaris 500 Classic Touring 1998 SK1076
WISECO
$374.95If you're rebuilding the top end on your Polaris 500 Classic Touring, a quality piston kit is non-negotiable—it directly impacts compression ratio, ring seal, and overall engine longevity. The Wiseco SK1076 delivers forged piston strength with...SK1076- SKU:
- SK1076
- Availability:
- Ships Same Business Day
- Weight:
- 2.13 LBS
- BORE SIZE METRIC:
- 72.00 MM
- DISPLACEMENT:
- 488 CC
- MODEL:
- PRO-LITE
- TYPE:
- TOP END
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 71.87 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- SNOW
- STROKE LENGTH METRIC:
- 60.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COOLING SYSTEM:
- FAN COOLED
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- REBUILD KIT
- SKIRT COATING:
- ARMORGLIDE®
$374.95Qty in Cart: 0Quantity:Price:$374.95Subtotal: -
Wiseco Piston Kit Arctic Cat Cheetah Touring 1991-1992 SK1085
WISECO
$324.95When you're rebuilding a 2-cycle engine, piston quality directly impacts combustion efficiency, ring seal, and overall engine longevity. The Wiseco SK1085 is engineered specifically for Arctic Cat Cheetah Touring sleds, eliminating guesswork and ensuring...SK1085- SKU:
- SK1085
- Availability:
- Ships Same Business Day
- Weight:
- 2.06 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 436 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 60.00 MM
- BORE SIZE METRIC:
- 68.00 MM
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- COOLING SYSTEM:
- LIQUID COOLED
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- PISTON DIAMETER METRIC:
- 67.90 MM
- RIDING STYLE:
- SNOW
$324.95Qty in Cart: 0Quantity:Price:$324.95Subtotal: -
Wiseco Piston Kit Yamaha YFZ450R 2004-2009 PK1064
WISECO
$344.95Your YFZ450R's engine performance is only as strong as its internals. When you're pushing hard on the track or trail, factory pistons can't handle sustained high RPMs, extreme heat, and aggressive tuning—which is where the Wiseco Piston Kit steps in...SK1094- SKU:
- SK1094
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- REBUILD KIT
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 73.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- DISPLACEMENT:
- 569 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 72.90 MM
- STROKE LENGTH METRIC:
- 68.00 MM
- MODEL:
- PRO-LITE
- RIDING STYLE:
- SNOW
- SKIRT COATING:
- NON-COATED
- TYPE:
- TOP END
$344.95Qty in Cart: 0Quantity:Price:$344.95Subtotal: -
Wiseco Piston Kit for Polaris 440 Indy 1992-1998 SK1123
WISECO
$334.95If you're rebuilding a 1992-1998 Polaris 440 Indy, the piston kit is the foundation of your engine's performance and reliability. Wiseco's high-silicone construction resists thermal expansion and maintains tight tolerances under sustained high-RPM...SK1123- SKU:
- SK1123
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 432 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 60.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- SKIRT COATING:
- NON-COATED
- BORE SIZE METRIC:
- 67.72 MM
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 67.57 MM
- RIDING STYLE:
- SNOW
- UNITS:
- KIT
$334.95Qty in Cart: 0Quantity:Price:$334.95Subtotal: -
Wiseco Yamaha SS440 1980-1985 Piston Kit SK1127
WISECO
$309.95If you're rebuilding a classic Yamaha SS440, you need pistons engineered to handle sustained high RPMs and thermal stress without sacrificing reliability. Wiseco's SK1127 kit delivers the precision fit and durability required for a proper top-end...SK1127- SKU:
- SK1127
- Availability:
- Ships Same Business Day
- Weight:
- 1.88 LBS
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 66.00 MM
- COOLING SYSTEM:
- FAN COOLED
- MODEL:
- FORGED SERIES
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 65.90 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- SNOW
- STROKE LENGTH METRIC:
- 64.00 MM
- DISPLACEMENT:
- 437 CC
- ENGINE TYPE:
- 2-STROKE
- SKIRT COATING:
- NON-COATED
- TYPE:
- TOP END
$309.95Qty in Cart: 0Quantity:Price:$309.95Subtotal:
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Snowmobile Piston and Ring Kits
- Compatibility: Ensure the kit matches your snowmobile's make (e.g., Arctic Cat, Polaris, Ski-Doo with Rotax, Yamaha, Kawasaki) and engine specs (primarily 2-stroke, e.g., 440cc-794cc). Use the vehicle selector for model-specific fits, including bore sizes (standard or oversize +.010/+.020/+.040) and years (e.g., Arctic Cat M8000 2014-2017) to prevent mismatches.
- Type of Use: For high-performance or mountain riding, choose forged kits for strength and heat resistance; trail or utility sleds benefit from cast kits for reliable rebuilds and wear resistance in standard conditions.
- Components and Upgrades: Select kits including pistons, rings (one per piston), wrist pins, circlips, and sometimes top-end gaskets. Focus on oversize options for bored engines, coatings for reduced friction, and materials for better compression and longevity.
- Brand and Quality: Opt for Wiseco for forged aluminum kits with ArmorGlide® skirt coating and high-silicone alloys, or Parts Unlimited for cast assemblies with MOS2 coatings. Prioritize features like precise fitment, quick break-in, and superior heat transfer for durability in cold, high-RPM environments.
- Installation and Cost: Kits are often DIY for experienced users with basic tools; professional help recommended for engine rebuilds. Prices range from $27 for basic oversize assemblies to $66 for premium kits—look for sales and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What snowmobile models and engines do these kits support? Kits fit brands like Arctic Cat (e.g., M8000 794cc 2014-2017), Polaris (e.g., 794cc 2-stroke), Ski-Doo (e.g., Rotax engines), Yamaha (e.g., 250cc), and Kawasaki. Use the year/make/model filter for exact compatibility with 2-stroke engines.
- How do forged vs. cast pistons differ? Forged (e.g., Wiseco SK1396) offer superior strength and heat resistance for performance; cast (e.g., Parts Unlimited 09-601) provide high-silicone content for wear resistance and affordable rebuilds.
- What is typically included in a kit? Most include piston(s), rings, wrist pins, circlips, and sometimes gaskets (e.g., Wiseco kits); check details for single-piston replacements or full assemblies.
- What materials enhance durability? High-silicone aluminum alloys reduce thermal expansion; coatings like ArmorGlide® or MOS2 minimize friction, improve break-in, and extend life in extreme cold.
- What if a kit doesn't fit my sled? Verify bore size, engine type, and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related engine parts? Yes—explore gaskets, cylinders/heads, bearings/seals, or full rebuild kits in the snowmobile engine category to complement your piston upgrade.
