Snowmobile Engine Bearings
Snowmobile Engine Bearings at JJ Motorsports
Restore smooth operation to your snowmobile's 2-stroke engine with premium engine bearings from JJ Motorsports. Our selection includes upper rod bearings, needle bearings, and top-end bearings designed for high RPM performance, wear resistance, and precise fitment in extreme cold conditions. Compatible with Yamaha Enticer, Arctic Cat Bearcat, Polaris, Ski-Doo, and more, these bearings feature stainless steel cages, high-grade Chromium Molybdenum alloys, case-hardened high-silicon aluminum, and dimensions like 18x23x21.8mm for superior durability, reduced friction, and extended lifespan for trail sleds, mountain climbers, or utility models. Built for easy installation and racing/recreational use, they ensure reliable power delivery for DIY mechanics or professional shops.
Shop trusted brands like Prox for rod bearings, Kimpex for needle bearings, and Wiseco for top-end options. Explore related categories such as snowmobile piston and ring kits for rebuilds or snowmobile engine gaskets & kits for sealing solutions.
Top Snowmobile Engine Bearings Products
- PROX Upper Rod Bearing - 18 mm x 23 mm x 21.8 mm 21.5696 – Stainless steel needle cage bearing for 2-stroke connecting rods in snowmobile engines.
- KIMPEX Needle Bearing - Yamaha Enticer 340 1978-1988 294848 – High-grade bearing steel with carbon nitriding for wear resistance in Yamaha snowmobile engines (16x20x22.5mm).
- WISECO Top End Bearing - Arctic Cat Bearcat 550 1995-1996 B1024 – Case-hardened high-silicon aluminum for high RPM piston use in Arctic Cat snowmobiles (20x26x24mm).
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 Top End Bearing Kawasaki JS550 1982-1988 B1021
WISECO
$25.95The Wiseco B1021 top end bearing is essential for maintaining reliable piston and rod performance in your Kawasaki JS550. Over thousands of engine cycles, factory bearings wear and develop play that compromises power delivery and accelerates secondary...B1021- SKU:
- B1021
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- LENGTH METRIC:
- 22.5 MM
- OUTSIDE DIAMETER METRIC:
- 20 MM
- PRODUCT NAME:
- BEARING
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- UNITS:
- EACH
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 16 MM
- MATERIAL:
- SILICONE
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
$25.95 -
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: $10.99Qty 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: $13.99Qty 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: -
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 -
Wiseco Top End Bearing Arctic Cat Bearcat 550 1995-1996 B1024
WISECO
$25.95The Wiseco Top End Bearing B1024 is purpose-built for Arctic Cat Snowmobile enthusiasts who demand reliability at sustained high RPMs. Factory bearings wear predictably under aggressive riding conditions—this upgrade delivers case-hardened durability and...B1024- SKU:
- B1024
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- APPLICATION:
- PISTON
- LENGTH METRIC:
- 24 MM
- OUTSIDE DIAMETER METRIC:
- 26 MM
- INSIDE DIAMETER METRIC:
- 20 MM
- MATERIAL:
- SILICONE
- TYPE:
- TOP END
$25.95 -
Kimpex Needle Bearing for Yamaha Enticer 340 1978-1988 294848
KIMPEX
$6.99Needle bearing wear is one of the most common causes of Yamaha Enticer 340 engine failure, particularly in the crankshaft and transmission assemblies. This OEM-spec Kimpex replacement bearing restores precision fit and eliminates excess clearance that...09522- SKU:
- 09522
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- LENGTH METRIC:
- 22.5 MM
- OUTSIDE DIAMETER METRIC:
- 20 MM
- APPLICATION:
- PISTON
- MATERIAL:
- CHROMIUM MOLYBDENUM ALLOY
- PRODUCT NAME:
- BEARING
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 16 MM
- RIDING STYLE:
- SNOW
- TYPE:
- NEEDLE
$6.99 -
On Sale
PROX Upper Rod Bearing - 18 mm x 22 mm x 22.8 mm 21.5400
PROX
MSRP: $10.99Now: $9.00Was: $10.99Piston rod-end bearings are critical to engine reliability, especially in high-RPM racing applications where lateral loads and reciprocating forces demand precision engineering. The PROX 18 x 22 x 22.8 mm needle cage bearing handles these extreme...09240251- SKU:
- 09240251
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- INSIDE DIAMETER:
- 18 MM
- INSIDE DIAMETER METRIC:
- 18 MM
- RIDING STYLE:
- SNOW
- OUTSIDE DIAMETER:
- 22 MM
- PRODUCT NAME:
- BEARING
- LENGTH:
- 22,8 MM
- LENGTH METRIC:
- 22.8 MM
- OUTSIDE DIAMETER METRIC:
- 22 MM
- STYLE:
- 2-STROKE
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- MATERIAL:
- STAINLESS STEEL
MSRP: $10.99Now: $9.00Was: $10.99Qty in Cart: 0Quantity:Price:MSRP: $10.99Now: $9.00Was: $10.99Subtotal: -
Kimpex Needle Bearing for Ski-Doo 1984-1986 Alpine 500 994291
KIMPEX
$10.99The KIMPEX Needle Bearing is engineered for Ski-Doo Alpine 500 engines (1984-1986) where precision and reliability directly impact performance. OEM-spec needle bearings are critical wear items that affect engine efficiency, smoothness, and longevity—this...09524- SKU:
- 09524
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- LENGTH METRIC:
- 22.7 MM
- RIDING STYLE:
- SNOW
- TYPE:
- NEEDLE
- INSIDE DIAMETER METRIC:
- 20 MM
- APPLICATION:
- PISTON
- MATERIAL:
- CHROMIUM MOLYBDENUM ALLOY
- PRODUCT NAME:
- BEARING
- OUTSIDE DIAMETER METRIC:
- 24 MM
- UNITS:
- EACH
$10.99 -
KIMPEX Needle Bearing 294836
KIMPEX
$9.99A needle bearing's job is simple but critical: minimize friction while handling radial loads under extreme RPM and temperature conditions. The KIMPEX 294836 combines Japanese-sourced bearing steel with precision manufacturing to deliver the reliability...NB1410- SKU:
- NB1410
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- INSIDE DIAMETER METRIC:
- 18 MM
- LENGTH METRIC:
- 22 MM
- PRODUCT NAME:
- BEARING
- MATERIAL:
- CHROMIUM MOLYBDENUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- APPLICATION:
- PISTON
- OUTSIDE DIAMETER METRIC:
- 22 MM
- TYPE:
- NEEDLE
$9.99Qty in Cart: 0Quantity:Price:$9.99Subtotal:
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Snowmobile Engine Bearings
- Compatibility: Match bearings to your snowmobile's make (e.g., Arctic Cat Bearcat 550 1995-1996, Ski-Doo Alpine 500 1984-1986, Yamaha Enticer 340 1978-1988, Kawasaki JS550 1982-1988) and engine type (primarily 2-stroke). Use the vehicle selector for model-year accuracy, including sizes like 18x23x21.8mm or 20x25x23.8mm to ensure precise fitment without issues.
- Type of Use: For high-RPM racing or mountain climbing, select needle or rod bearings for durability; trail or utility sleds benefit from top-end bearings for reliable performance and wear resistance in extreme cold conditions.
- Components and Upgrades: Choose upper rod bearings (needle cage), needle bearings (piston rod-end), or top-end bearings. Focus on features like stainless steel cages, chromium molybdenum alloys for hardness (HV700-860), and case-hardened high-silicon aluminum for reduced friction and extended lifespan.
- Brand and Quality: Opt for PROX for stainless steel rod bearings, KIMPEX for high-grade needle bearings with carbon nitriding, or WISECO for top-end bearings in high-silicon aluminum. Prioritize materials sourced from Japan for superior wear resistance and reliability in harsh winter environments.
- Installation and Cost: Bearings are designed for easy DIY or professional installation with precise fitment. Prices range from $6.99 for basic needle bearings to $23.99 for premium top-end options—look for sales and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What snowmobile models and engines do these bearings support? Bearings fit brands like Arctic Cat (e.g., Cheetah 500 1986-1988), Ski-Doo (e.g., Alpine 500 1984-1986), Yamaha (e.g., Enticer 340 1978-1988), and Kawasaki (e.g., JS550 1982-1988), primarily for 2-stroke engines. Use the year/make/model filter for exact compatibility.
- How do needle bearings improve engine performance? KIMPEX needle bearings with chromium molybdenum and carbon nitriding provide wear resistance, precise fitment, and reliable power delivery at high RPMs in extreme cold.
- What materials ensure durability? Stainless steel cages (PROX), high-grade alloys with hardness ratings (KIMPEX), and case-hardened high-silicon aluminum (WISECO) offer superior strength, reduced friction, and longevity in demanding conditions.
- Are these bearings suitable for rebuilds? Yes, ideal for engine overhauls in trail, mountain, or utility sleds, with easy installation and benefits like extended lifespan for recreational or racing use.
- What if a bearing doesn't fit my sled? Verify 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 pistons/rings kits, gaskets, cylinders/heads, or full rebuild kits in the snowmobile engine category to complement your bearing upgrade.
