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 600 HO ETEC 35.5613
PROX
MSRP: $64.95Now: $55.00Was: $64.95A top-end gasket kit is essential maintenance for any Ski-Doo 600 HO ETEC engine running at peak performance. Over time, thermal cycling and combustion pressures degrade factory gaskets, leading to compression loss, oil seepage, and potential...09346631- SKU:
- 09346631
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GASKET SET
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
MSRP: $64.95Now: $55.00Was: $64.95 -
On Sale
PROX Top End Gasket Kit - Arctic Cat EXT/ZRT 600 35.5696
PROX
MSRP: $74.95Now: $64.00Was: $74.95A top-end gasket failure can compromise your engine's reliability and performance, leading to costly downtime. The PROX Top End Gasket Kit for Arctic Cat EXT/ZRT 600 delivers OEM-equivalent sealing with precision-engineered gaskets designed to withstand...09346635- SKU:
- 09346635
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- UNITS:
- SET
- PRODUCT NAME:
- GASKET SET
MSRP: $74.95Now: $64.00Was: $74.95Qty in Cart: 0Quantity:Price:MSRP: $74.95Now: $64.00Was: $74.95Subtotal: -
On Sale
PROX Top End Gasket Kit - Arctic Cat Fire/Saber Cat 35.5703
PROX
MSRP: $74.95Now: $64.00Was: $74.95A top-end gasket kit is essential maintenance for any Arctic Cat Fire or Saber Cat engine—it seals critical combustion chamber interfaces to prevent oil leaks, coolant seepage, and compression loss that can degrade performance and reliability. PROX...09346638- SKU:
- 09346638
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- GASKET SET
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- UNITS:
- SET
MSRP: $74.95Now: $64.00Was: $74.95Qty in Cart: 0Quantity:Price:MSRP: $74.95Now: $64.00Was: $74.95Subtotal: -
On Sale
PROX Top End Gasket Kit - Polaris 700 35.5797
PROX
MSRP: $59.95Now: $51.00Was: $59.95A worn or compromised top end gasket kit can lead to compression loss, oil leakage, and catastrophic engine failure—especially in high-performance applications. The PROX Top End Gasket Kit for Polaris 700 engines provides a complete OEM-quality seal that...09346639- SKU:
- 09346639
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- GASKET SET
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- UNITS:
- SET
MSRP: $59.95Now: $51.00Was: $59.95 -
On Sale
PROX Top End Gasket Kit - Polaris 700 35.5799
PROX
MSRP: $59.95Now: $51.00Was: $59.95A quality top-end gasket kit is essential for maintaining cylinder head integrity and preventing costly coolant or oil leaks that compromise engine performance. The PROX Top End Gasket Kit for Polaris 700 engines delivers OEM-equivalent sealing with...09346640- SKU:
- 09346640
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- GASKET SET
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- UNITS:
- SET
MSRP: $59.95Now: $51.00Was: $59.95Qty in Cart: 0Quantity:Price:MSRP: $59.95Now: $51.00Was: $59.95Subtotal: -
On Sale
PROX Top End Gasket Kit - Ski Doo SM/MXZ 35.5800
PROX
MSRP: $54.95Now: $47.00Was: $54.95A top-end rebuild demands precision gasket sealing to maintain compression and prevent oil leakage across cylinder head surfaces. The PROX Top End Gasket Kit delivers OEM-equivalent quality with superior material durability, ensuring reliable performance...09346641- SKU:
- 09346641
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- SNOW
- PRODUCT NAME:
- GASKET KIT
MSRP: $54.95Now: $47.00Was: $54.95 -
On Sale
PROX Top End Gasket Kit - Ski Doo Summit/MXZ 800 35.5808
PROX
MSRP: $79.95Now: $68.00Was: $79.95A failed top end gasket kit can compromise your snowmobile's engine integrity, leading to coolant leaks, loss of compression, and catastrophic engine damage. The PROX Top End Gasket Kit is engineered to exact OEM specifications, ensuring a perfect seal...09346645- SKU:
- 09346645
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- SNOW
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
MSRP: $79.95Now: $68.00Was: $79.95Qty in Cart: 0Quantity:Price:MSRP: $79.95Now: $68.00Was: $79.95Subtotal: -
On Sale
PROX Top End Gasket Kit - Arctic Cat 800 35.5811
PROX
MSRP: $84.95Now: $72.00Was: $84.95A properly sealed top end is non-negotiable for engine reliability and performance on your Arctic Cat 800. This OEM-equivalent gasket kit ensures leak-free operation and maintains optimal combustion chamber integrity across demanding riding conditions...09346647- SKU:
- 09346647
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
MSRP: $84.95Now: $72.00Was: $84.95Qty in Cart: 0Quantity:Price:MSRP: $84.95Now: $72.00Was: $84.95Subtotal: -
On Sale
PROX Top End Gasket Kit - Polaris 800 35.5813
PROX
MSRP: $74.95Now: $64.00Was: $74.95A worn or failed top end gasket kit compromises your Polaris 800's sealing integrity, leading to coolant leaks, oil weeping, and potential engine damage. This OEM-equivalent PROX gasket kit restores reliable compression sealing and prevents catastrophic...09346649- SKU:
- 09346649
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- RIDING STYLE:
- SNOW
MSRP: $74.95Now: $64.00Was: $74.95 -
On Sale
PROX Top End Gasket Kit - Polaris 800 35.5817
PROX
MSRP: $89.95Now: $76.00Was: $89.95A failing top end gasket kit is the fastest way to lose compression, burn oil, and watch your engine's reliability spiral. The PROX Top End Gasket Kit for Polaris 800 engines delivers OEM-equivalent sealing integrity with precision-cut materials that...09346650- SKU:
- 09346650
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- SNOW
MSRP: $89.95Now: $76.00Was: $89.95 -
On Sale
PROX Top End Gasket Kit - Ski Doo 800R ETEC 35.5818
PROX
MSRP: $69.95Now: $59.00Was: $69.95A top-end gasket failure can sideline your sled at the worst possible moment, compromising engine integrity and reliability when you need it most. The PROX Top End Gasket Kit delivers OEM-equivalent sealing performance with precision engineering,...09346651- SKU:
- 09346651
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
MSRP: $69.95Now: $59.00Was: $69.95 -
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: $10.99 -
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: $10.99 -
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: $13.99Qty in Cart: 0Quantity:Price:MSRP: $13.99Now: $12.00Was: $13.99Subtotal: -
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:
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.
