Snowmobile Engine
Snowmobile Engine Parts & Components at JJ Motorsports
Revamp your snowmobile engine with premium parts from JJ Motorsports. Our inventory features complete gasket sets, top-end kits, pistons, and seals using high-tech materials for superior reliability and performance in extreme cold. Compatible with engines from Sachs, JLO, Hirth, and more, these components ensure leak-free operation, better compression, and longevity for Ski-Doo, Polaris, Arctic Cat, and Yamaha models during trail rides or racing.
Shop trusted brands like Winderosa for gasket sets and Maxima Racing Oils for lubricants. Explore related categories such as snowmobile air and fuel systems for tuning or snowmobile drivetrain for full powertrain upgrades.
Top Snowmobile Engine Products
- WINDEROSA Complete Gasket Set 711063 – High-tech materials for reliable sealing.
- WINDEROSA Complete Gasket Set 711063C – Enhanced for performance engines.
- WINDEROSA Complete Gasket Set 711063D – Durable for extreme conditions.
- WINDEROSA Complete Gasket Set 711109A – Comprehensive top-end rebuild kit.
- WINDEROSA Complete Gasket Set 711020 – Affordable and reliable option.
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
-
On Sale
PROX Top End Gasket Kit - Ski Doo 1000 35.5905
PROX
MSRP: $134.95Now: $115.00Was: $134.95A top-end gasket kit is essential maintenance for any high-performance snowmobile engine, preventing coolant and oil leaks that compromise reliability and power delivery. The PROX 35.5905 is engineered to OEM specifications, ensuring precise fitment and...09346655- SKU:
- 09346655
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
MSRP: $134.95Now: $115.00Was: $134.95 -
On Sale
PROX Upper Rod Bearing - 20 mm x 25 mm x 23.8 mm 21.2697
PROX
MSRP: $10.99Now: $9.00Was: $10.99The PROX Upper Rod Bearing is engineered for high-RPM applications where precision and durability under extreme loads are non-negotiable. This needle cage bearing maintains critical clearances in your piston rod assembly, reducing friction and extending...09240249- SKU:
- 09240249
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER:
- 20 MM
- INSIDE DIAMETER METRIC:
- 20 MM
- LENGTH METRIC:
- 23.8 MM
- OUTSIDE DIAMETER METRIC:
- 25 MM
- STYLE:
- 2-STROKE
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- LENGTH:
- 23,8 MM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- OUTSIDE DIAMETER:
- 25 MM
MSRP: $10.99Now: $9.00Was: $10.99 -
On Sale
PROX Upper Rod Bearing - 20 mm x 24 mm x 22.8 mm 21.5503
PROX
MSRP: $10.99Now: $9.00Was: $10.99The PROX Upper Rod Bearing is engineered for high-revving engines where piston rod articulation demands precision needle bearing surfaces. Failing or worn rod bearings compromise engine reliability and can lead to catastrophic internal damage—this...09240252- SKU:
- 09240252
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- SNOW
- INSIDE DIAMETER:
- 20 MM
- INSIDE DIAMETER METRIC:
- 20 MM
- LENGTH:
- 22,8 MM
- LENGTH METRIC:
- 22.8 MM
- OUTSIDE DIAMETER:
- 24 MM
- STYLE:
- 2-STROKE
- OUTSIDE DIAMETER METRIC:
- 24 MM
- APPLICATION:
- CONNECTING ROD
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- BEARING
- UNITS:
- EACH
MSRP: $10.99Now: $9.00Was: $10.99 -
On Sale
PROX Upper Rod Bearing - 18 mm x 23 mm x 22.8 mm 21.5598
PROX
MSRP: $10.99Now: $9.00Was: $10.99A quality rod bearing is critical to engine longevity—it directly supports the dynamic loads between your piston and crankshaft. The PROX 18 mm x 23 mm x 22.8 mm needle cage bearing is engineered to handle high-RPM stress while maintaining precise...09240253- SKU:
- 09240253
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER:
- 18 MM
- INSIDE DIAMETER METRIC:
- 18 MM
- LENGTH:
- 23,8 MM
- OUTSIDE DIAMETER METRIC:
- 23 MM
- RIDING STYLE:
- SNOW
- LENGTH METRIC:
- 23.8 MM
- OUTSIDE DIAMETER:
- 23 MM
- APPLICATION:
- CONNECTING ROD
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- BEARING
- STYLE:
- 2-STROKE
- UNITS:
- EACH
MSRP: $10.99Now: $9.00Was: $10.99Qty in Cart: 0Quantity:Price:MSRP: $10.99Now: $9.00Was: $10.99Subtotal: -
On Sale
PROX Upper Rod Bearing - 18 mm x 23 mm x 21.8 mm 21.5696
PROX
MSRP: $10.99Now: $9.00Was: $10.99A worn or damaged piston rod-end bearing will compromise your engine's reliability and performance under high RPM and load conditions. The PROX Upper Rod Bearing delivers OEM-equivalent durability with needle cage construction designed to handle...09240255- SKU:
- 09240255
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- OUTSIDE DIAMETER:
- 23 MM
- OUTSIDE DIAMETER METRIC:
- 23 MM
- RIDING STYLE:
- SNOW
- INSIDE DIAMETER:
- 18 MM
- INSIDE DIAMETER METRIC:
- 18 MM
- LENGTH:
- 21,8 MM
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- CONNECTING ROD
- LENGTH METRIC:
- 21.8 MM
- PRODUCT NAME:
- BEARING
- STYLE:
- 2-STROKE
- UNITS:
- EACH
MSRP: $10.99Now: $9.00Was: $10.99Qty in Cart: 0Quantity:Price:MSRP: $10.99Now: $9.00Was: $10.99Subtotal: -
On Sale
PROX Upper Rod Bearing - 20 mm x 26 mm x 23.8 mm 21.5698
PROX
MSRP: $10.99Now: $9.00Was: $10.99If you're rebuilding a high-revving engine or servicing critical rotating assemblies, needle cage bearings are non-negotiable for minimizing friction and extending component life. The PROX 20 mm x 26 mm x 23.8 mm upper rod bearing delivers the precision...09240256- SKU:
- 09240256
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 26 MM
- APPLICATION:
- CONNECTING ROD
- LENGTH:
- 23,8 MM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- OUTSIDE DIAMETER:
- 26 MM
- UNITS:
- EACH
- INSIDE DIAMETER:
- 20 MM
- INSIDE DIAMETER METRIC:
- 20 MM
- LENGTH METRIC:
- 23.8 MM
- STYLE:
- 2-STROKE
MSRP: $10.99Now: $9.00Was: $10.99Qty in Cart: 0Quantity:Price:MSRP: $10.99Now: $9.00Was: $10.99Subtotal: -
On Sale
PROX Upper Rod Bearing - 20 mm x 25 mm x 22.8 mm 21.5700
PROX
MSRP: $10.99Now: $9.00Was: $10.99Piston rod-end bearings are critical to engine reliability—they handle extreme lateral loads and oscillating forces that can quickly wear inferior components. The PROX 20 mm x 25 mm x 22.8 mm needle cage bearing delivers the precision fit and durability...09240257- SKU:
- 09240257
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- LENGTH:
- 22,8 MM
- OUTSIDE DIAMETER:
- 25 MM
- OUTSIDE DIAMETER METRIC:
- 25 MM
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- INSIDE DIAMETER:
- 20 MM
- INSIDE DIAMETER METRIC:
- 20 MM
- LENGTH METRIC:
- 22.8 MM
- STYLE:
- 2-STROKE
MSRP: $10.99Now: $9.00Was: $10.99 -
On Sale
PROX Upper Rod Bearing - 22 mm x 27 mm x 24.8 mm 21.5801
PROX
MSRP: $13.99Now: $12.00Was: $13.99The PROX Upper Rod Bearing is engineered for high-RPM applications where precision tolerances and needle cage reliability are non-negotiable. This OEM-quality bearing eliminates excess piston rod clearance, reducing friction losses and extending engine...09240258- SKU:
- 09240258
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- INSIDE DIAMETER:
- 22 MM
- INSIDE DIAMETER METRIC:
- 22 MM
- APPLICATION:
- CONNECTING ROD
- LENGTH METRIC:
- 24.8 MM
- MATERIAL:
- STAINLESS STEEL
- OUTSIDE DIAMETER:
- 27 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- LENGTH:
- 24,8 MM
- OUTSIDE DIAMETER METRIC:
- 27 MM
- STYLE:
- 2-STROKE
- UNITS:
- EACH
MSRP: $13.99Now: $12.00Was: $13.99 -
On Sale
PROX Upper Rod Bearing - 24 mm x 29 mm x 23.7 mm 21.5802
PROX
MSRP: $13.99Now: $12.00Was: $13.99Piston rod bearings are critical components that endure extreme loads and high-speed cycling in high-performance engines. A worn or undersized bearing compromises rod clearance, increases friction, and risks catastrophic engine failure. The PROX Upper...09240259- SKU:
- 09240259
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- OUTSIDE DIAMETER:
- 29 MM
- OUTSIDE DIAMETER METRIC:
- 29 MM
- INSIDE DIAMETER:
- 24 MM
- INSIDE DIAMETER METRIC:
- 24 MM
- LENGTH:
- 23,7 MM
- STYLE:
- 2-STROKE
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- LENGTH METRIC:
- 23.7 MM
MSRP: $13.99Now: $12.00Was: $13.99Qty in Cart: 0Quantity:Price:MSRP: $13.99Now: $12.00Was: $13.99Subtotal: -
On Sale
PROX Upper Rod Bearing - 22 mm x 27 mm x 23.8 mm 21.5807
PROX
MSRP: $13.99Now: $12.00Was: $13.99The PROX Upper Rod Bearing is a precision needle cage bearing engineered for high-RPM piston rod applications where reliability under extreme loads is non-negotiable. This OEM-quality component reduces friction at the piston pin junction, maintaining...09240260- SKU:
- 09240260
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- LENGTH METRIC:
- 23.8 MM
- OUTSIDE DIAMETER:
- 27 MM
- STYLE:
- 2-STROKE
- APPLICATION:
- CONNECTING ROD
- LENGTH:
- 23,8 MM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- INSIDE DIAMETER:
- 22 MM
- INSIDE DIAMETER METRIC:
- 22 MM
- OUTSIDE DIAMETER METRIC:
- 27 MM
- UNITS:
- EACH
MSRP: $13.99Now: $12.00Was: $13.99Qty in Cart: 0Quantity:Price:MSRP: $13.99Now: $12.00Was: $13.99Subtotal: -
On Sale
PROX Upper Rod Bearing - 21 mm x 27 mm x 24.8 mm 21.5808
PROX
MSRP: $10.99Now: $9.00Was: $10.99A precision piston rod-end bearing is critical to engine longevity and consistent performance under high RPM conditions. This PROX needle cage bearing eliminates excessive side-load wear that degrades rod clearances and compromises engine reliability...09240261- SKU:
- 09240261
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- APPLICATION:
- CONNECTING ROD
- INSIDE DIAMETER:
- 21 MM
- INSIDE DIAMETER METRIC:
- 21 MM
- OUTSIDE DIAMETER:
- 27 MM
- PRODUCT NAME:
- BEARING
- STYLE:
- 2-STROKE
- UNITS:
- EACH
- LENGTH:
- 24,8 MM
- OUTSIDE DIAMETER METRIC:
- 27 MM
- LENGTH METRIC:
- 24.8 MM
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- SNOW
MSRP: $10.99Now: $9.00Was: $10.99 -
On Sale
PROX Piston Kit - Arctic Cat 600 CTEC 01.5614.000
PROX
MSRP: $105.95Now: $90.00Was: $105.95A worn or damaged piston directly impacts combustion efficiency, throttle response, and engine longevity. The PROX Piston Kit for Arctic Cat 600 CTEC engines restores OEM-spec compression and sealing, ensuring reliable performance whether you're pushing...09106063- SKU:
- 09106063
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- BORE SIZE METRIC:
- 73.80 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- RIDING STYLE:
- SNOW
MSRP: $105.95Now: $90.00Was: $105.95Qty in Cart: 0Quantity:Price:MSRP: $105.95Now: $90.00Was: $105.95Subtotal: -
On Sale
PROX Piston Kit - SeaDoo 850 ETEC 01.5817.000
PROX
MSRP: $165.95Now: $141.00Was: $165.95The PROX Piston Kit is engineered to restore or exceed OEM performance standards for your SeaDoo 850 ETEC, ensuring consistent power delivery and reliability whether you're running stock boost or pushing modified fuel maps. A quality piston kit is...09106065- SKU:
- 09106065
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
- BORE SIZE METRIC:
- 82.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- SNOW
MSRP: $165.95Now: $141.00Was: $165.95 -
On Sale
PROX Piston Kit - Arctic Cat 800 CTEC 01.5818.000
PROX
MSRP: $119.95Now: $102.00Was: $119.95Your Arctic Cat 800 CTEC demands reliable internal components that can withstand extreme conditions and deliver consistent performance. A worn or damaged piston directly impacts compression, throttle response, and overall engine longevity. The PROX...09106066- SKU:
- 09106066
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- SNOW
- BORE SIZE METRIC:
- 85.00 MM
- UNITS:
- KIT
MSRP: $119.95Now: $102.00Was: $119.95Qty in Cart: 0Quantity:Price:MSRP: $119.95Now: $102.00Was: $119.95Subtotal: -
On Sale
PROX Piston Kit - Polaris 850 01.5819.000
PROX
MSRP: $165.95Now: $141.00Was: $165.95A worn or damaged piston directly undermines engine reliability and performance—especially in high-demand Polaris 850 applications where every combustion cycle matters. The PROX Piston Kit restores factory specifications with precision-engineered...09106067- SKU:
- 09106067
- Availability:
- Ships Same Business Day
- Weight:
- 1.61 LBS
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 85.00 MM
- RIDING STYLE:
- SNOW
- UNITS:
- KIT
MSRP: $165.95Now: $141.00Was: $165.95 -
On Sale
PROX Piston Kit - Standard - MXZ 500 01.5595.000
PROX
MSRP: $105.95Now: $90.00Was: $105.95The PROX Piston Kit keeps your MXZ 500 running at peak performance through extreme conditions. Forged from high-silicon alloy, these pistons deliver the strength and reliability demanded by both trail and racing applications. Every kit ships complete...09106260- SKU:
- 09106260
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- SNOW
- BORE SIZE:
- 72,00 MM
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 72.00 MM
MSRP: $105.95Now: $90.00Was: $105.95Qty in Cart: 0Quantity:Price:MSRP: $105.95Now: $90.00Was: $105.95Subtotal: -
On Sale
PROX Piston Kit - +.05" - MXZ 500 01.5595.050
PROX
MSRP: $105.95Now: $90.00Was: $105.95If you're pushing your MXZ 500 to its limits, factory pistons won't cut it—especially if you've already bored or plan to upgrade your engine's displacement. The PROX +.05" piston kit delivers the strength and precision you need to handle high-rpm demands...09106261- SKU:
- 09106261
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- RIDING STYLE:
- SNOW
- BORE - OVERSIZE:
- +0,50 MM
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE:
- 72,00 MM
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 72.00 MM
MSRP: $105.95Now: $90.00Was: $105.95Qty in Cart: 0Quantity:Price:MSRP: $105.95Now: $90.00Was: $105.95Subtotal: -
On Sale
PROX Ring Set 02.5699.000
PROX
MSRP: $24.95Now: $21.00Was: $24.95Proper ring sealing is critical to engine efficiency and longevity. A quality ring set maintains compression, reduces blow-by, and ensures consistent heat transfer from the combustion chamber to the cylinder walls. The PROX Ring Set 02.5699.000 delivers...09120441- SKU:
- 09120441
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE SIZE METRIC:
- 76.00 MM
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RIDING STYLE:
- SNOW
MSRP: $24.95Now: $21.00Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.00Was: $24.95Subtotal: -
On Sale
PROX Ring Set 02.5699.100
PROX
MSRP: $24.95Now: $21.00Was: $24.95Ring seal quality directly impacts combustion efficiency, oil consumption, and engine longevity. Poor sealing compromises compression, forces your engine to work harder, and accelerates wear on cylinder walls. The PROX Ring Set 02.5699.100 delivers...09120443- SKU:
- 09120443
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- BORE SIZE METRIC:
- 77.00 MM
- RIDING STYLE:
- SNOW
MSRP: $24.95Now: $21.00Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.00Was: $24.95Subtotal: -
On Sale
PROX Ring Set 02.5603
PROX
MSRP: $24.95Now: $21.00Was: $24.95Proper ring sealing is fundamental to engine performance and longevity. The PROX Ring Set 02.5603 delivers the thermal management and compression integrity your engine demands, whether you're pushing peak power at the track or maintaining reliability...09120445- SKU:
- 09120445
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- SNOW
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE SIZE METRIC:
- 77.25 MM
- UNITS:
- SET
MSRP: $24.95Now: $21.00Was: $24.95
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Snowmobile Engine Parts
- Compatibility: Confirm parts fit your snowmobile's make (e.g., Arctic Cat, Polaris, Ski-Doo, Yamaha) and engine type (e.g., Sachs, JLO, Hirth, CCW, Kohler, Xenoah). Use the vehicle selector for model-specific matches, ensuring compatibility with current and non-current models to avoid leaks or performance issues.
- Type of Use: For high-performance racing or extreme cold rides, select top-end kits and gaskets for better compression; maintenance or trail use benefits from basic rebuild kits and seals for reliability and longevity in demanding winter conditions.
- Components and Upgrades: Choose from complete gasket sets, top-end kits (e.g., pistons, rings), cylinders/heads, bearings/seals, recoil starters, valves/cams, crankshafts, oil filters/tanks, wrist pins, motor mounts, flywheels/rods, and rebuild kits. Focus on features like high-tech materials for sealing and oil seals for leak-free operation.
- Brand and Quality: Opt for trusted brands like Winderosa for gasket and top-end sets with superior materials, or Maxima Racing Oils for lubricants. Prioritize high-tech, durable constructions that provide unmatched reliability, better compression, and performance in extreme environments.
- Installation and Cost: Many parts like gaskets or seals are DIY-friendly with basic tools; full rebuilds may require mechanics. Prices range from $40 for basic gasket sets to $110 for premium top-end kits—look for bundles and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What snowmobile models and engines do these parts support? Parts are designed for makes like Arctic Cat, Polaris, Ski-Doo, and Yamaha, with compatibility for engines from Sachs, JLO, Hirth, CCW, Kohler, and Xenoah. Use the year/make/model filter for exact fits.
- How do gasket sets improve engine performance? Winderosa complete gasket sets provide superior sealing for leak-free operation, better compression, and increased longevity, ideal for performance engines in extreme cold.
- What do top-end kits typically include? Full top-end sets like Winderosa 710235 include gaskets, oil seals, and high-tech materials for a comprehensive rebuild, ensuring reliability and enhanced performance.
- Are these parts suitable for extreme conditions? Yes, made from high-tech materials designed for demanding snow riding, they offer unmatched durability and performance in harsh winter environments.
- What if a part doesn't fit my snowmobile? Verify compatibility using our selector tool before purchase. If it doesn't match, our returns policy allows exchanges or refunds.
- Can I find related engine components? Yes—explore subcategories like pistons/rings, cylinders/heads, bearings/seals, or browse air and fuel or drivetrain for complementary upgrades.
