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Snowmobile Engine

Snowmobile Engine

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

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
  • PARTS UNLIMITED Piston Assembly - Rotax - Standard 09-785

    PARTS UNLIMITED Piston Assembly - Rotax - Standard 09-785

    PARTS UNLIMITED

    $68.85
    When your Rotax engine demands reliability under sustained high-RPM operation, OEM-equivalent piston quality becomes non-negotiable. The PARTS UNLIMITED Piston Assembly delivers the thermal efficiency and dimensional precision of original equipment,...
    09785
    SKU:
    09785
    Availability:
    Ships Same Business Day
    Weight:
    1.06 LBS
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    SNOW
    BORE SIZE METRIC:
    76.00 MM
    STROKE LENGTH METRIC:
    65.80 MM
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    DISPLACEMENT:
    600 CC
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $68.85
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-800

    PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-800

    PARTS UNLIMITED

    $60.37
    A piston assembly is critical to your engine's combustion efficiency and longevity. This PARTS UNLIMITED unit delivers OEM-equivalent performance with superior heat dissipation, keeping combustion chamber temperatures in check and reducing thermal stress...
    09800
    SKU:
    09800
    Availability:
    Ships Same Business Day
    Weight:
    0.88 LBS
    DISPLACEMENT:
    250 CC
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    SNOW
    STROKE LENGTH METRIC:
    64.00 MM
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    BORE SIZE METRIC:
    70.00 MM
    UNITS:
    EACH
    $60.37
    Qty in Cart: 0
    Quantity:
    Price:
    $60.37
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8012

    PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8012

    PARTS UNLIMITED

    $55.07
    A worn or damaged piston compromises combustion efficiency and engine reliability—replacement is essential for maintaining peak performance. This PARTS UNLIMITED piston assembly delivers OE-equivalent quality with optimized heat dissipation, ensuring...
    098012
    SKU:
    098012
    Availability:
    Ships Same Business Day
    Weight:
    0.88 LBS
    $55.07
    Qty in Cart: 0
    Quantity:
    Price:
    $55.07
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-807

    PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-807

    PARTS UNLIMITED

    $45.53
    A piston assembly is critical to engine reliability and performance—it's where combustion energy converts to mechanical power. The PARTS UNLIMITED 09-807 delivers OEM-equivalent quality with optimized heat transfer geometry, ensuring consistent...
    09807
    SKU:
    09807
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    DISPLACEMENT:
    440 CC
    UNITS:
    EACH
    BORE SIZE METRIC:
    66.00 MM
    STROKE LENGTH METRIC:
    64.00 MM
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    SNOW
    $45.53
    Qty in Cart: 0
    Quantity:
    Price:
    $45.53
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-808

    PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-808

    PARTS UNLIMITED

    $47.65
    A quality piston assembly is foundational to engine reliability and performance—especially when you're pushing your Yamaha to its limits. The PARTS UNLIMITED Standard 09-808 delivers OEM-equivalent construction with optimized thermal properties, ensuring...
    09808
    SKU:
    09808
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    UNITS:
    EACH
    DISPLACEMENT:
    650 CC
    RIDING STYLE:
    SNOW
    BORE SIZE METRIC:
    73.00 MM
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    64.00 MM
    $47.65
    Qty in Cart: 0
    Quantity:
    Price:
    $47.65
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8082

    PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8082

    PARTS UNLIMITED

    $48.71
    When you're rebuilding a Yamaha engine, piston quality directly impacts combustion efficiency and engine longevity. These PARTS UNLIMITED pistons are engineered to match OEM specifications while delivering superior heat dissipation—critical for...
    098082
    SKU:
    098082
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    $48.71
    Qty in Cart: 0
    Quantity:
    Price:
    $48.71
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8102

    PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8102

    PARTS UNLIMITED

    $38.11
    When your Yamaha engine demands precision and reliability, OE-spec pistons are non-negotiable. This PARTS UNLIMITED assembly delivers the thermal efficiency and durability you need to maintain peak performance without cutting corners. Engineered to...
    098102
    SKU:
    098102
    Availability:
    Ships Same Business Day
    Weight:
    0.94 LBS
    $38.11
    Qty in Cart: 0
    Quantity:
    Price:
    $38.11
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-813

    PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-813

    PARTS UNLIMITED

    $50.83
    A worn or damaged piston assembly directly compromises engine efficiency, reliability, and power output—making replacement essential for maintaining peak performance. The PARTS UNLIMITED Piston Assembly for Yamaha delivers OEM-equivalent casting quality...
    09813
    SKU:
    09813
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    BORE SIZE METRIC:
    72.00 MM
    RIDING STYLE:
    SNOW
    STROKE LENGTH METRIC:
    59.60 MM
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    DISPLACEMENT:
    480 CC
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $50.83
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8132

    PARTS UNLIMITED Piston Assembly - Yamaha - +.020 09-8132

    PARTS UNLIMITED

    $47.65
    When you're rebuilding a Yamaha engine, piston quality directly impacts combustion efficiency and engine longevity. PARTS UNLIMITED's +.020 piston assembly delivers OEM-matched performance with superior heat dissipation from the combustion chamber to...
    098132
    SKU:
    098132
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    $47.65
    Qty in Cart: 0
    Quantity:
    Price:
    $47.65
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-817

    PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-817

    PARTS UNLIMITED

    $48.71
    A piston assembly is critical to engine reliability and performance—it's the component that converts combustion pressure into usable power. The PARTS UNLIMITED Piston Assembly for Yamaha maintains OEM-level specifications while delivering superior heat...
    09817
    SKU:
    09817
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    BORE SIZE METRIC:
    73.00 MM
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    SNOW
    STROKE LENGTH METRIC:
    68.00 MM
    DISPLACEMENT:
    569 CC
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    UNITS:
    EACH
    $48.71
    Qty in Cart: 0
    Quantity:
    Price:
    $48.71
    Subtotal:
  • PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-825

    PARTS UNLIMITED Piston Assembly - Yamaha - Standard 09-825

    PARTS UNLIMITED

    $50.95
    A piston assembly is your engine's front-line defense against combustion forces and thermal stress. When stock pistons show wear or you're rebuilding after performance modifications, PARTS UNLIMITED's cast piston assembly delivers OE-matched geometry...
    09825
    SKU:
    09825
    Availability:
    Ships Same Business Day
    Weight:
    0.88 LBS
    RIDING STYLE:
    SNOW
    STROKE LENGTH METRIC:
    68.00 MM
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    BORE SIZE METRIC:
    68.00 MM
    DISPLACEMENT:
    500 CC
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $50.95
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-692

    PARTS UNLIMITED Ring Set R09-692

    PARTS UNLIMITED

    $16.91
    Piston ring degradation directly impacts compression, oil consumption, and overall engine efficiency—replacing worn rings restores the seal integrity your engine needs to maintain peak performance. Whether you're rebuilding after a high-mileage teardown...
    R09692
    SKU:
    R09692
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE SIZE METRIC:
    60.00 MM
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    RIDING STYLE:
    SNOW
    PISTON MATERIAL:
    ALUMINUM
    PISTON SIZE IMPERIAL:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $16.91
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-6932

    PARTS UNLIMITED Ring Set R09-6932

    PARTS UNLIMITED

    $16.91
    A worn or damaged piston ring set directly compromises compression, oil control, and combustion efficiency—leading to power loss, increased blow-by, and accelerated engine wear. The PARTS UNLIMITED Ring Set R09-6932 restores proper sealing and...
    R096932
    SKU:
    R096932
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    BORE SIZE METRIC:
    70.00 MM
    PISTON MATERIAL:
    ALUMINUM
    PISTON SIZE IMPERIAL:
    +0.020'
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    RIDING STYLE:
    SNOW
    $16.91
    Qty in Cart: 0
    Quantity:
    Price:
    $16.91
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-693-C

    PARTS UNLIMITED Ring Set R09-693-C

    PARTS UNLIMITED

    $20.09
    Piston ring sets are critical wear items that directly impact compression, oil control, and engine efficiency. Over time, rings lose their sealing ability, leading to blow-by, oil consumption, and power loss. The PARTS UNLIMITED Ring Set R09-693-C...
    R09693C
    SKU:
    R09693C
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    UNITS:
    SET
    PRODUCT NAME:
    PISTON RING
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    SNOW
    BORE SIZE METRIC:
    70.00 MM
    PISTON SIZE IMPERIAL:
    STANDARD
    $20.09
    Qty in Cart: 0
    Quantity:
    Price:
    $20.09
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-695

    PARTS UNLIMITED Ring Set R09-695

    PARTS UNLIMITED

    $16.91
    Worn or damaged piston rings directly compromise compression, oil control, and power output—making a quality replacement essential for restoring engine performance and preventing costly damage. The PARTS UNLIMITED Ring Set R09-695 delivers OEM-equivalent...
    R09695
    SKU:
    R09695
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PISTON MATERIAL:
    ALUMINUM
    PISTON SIZE IMPERIAL:
    STANDARD
    RIDING STYLE:
    SNOW
    BORE SIZE METRIC:
    68.00 MM
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    $16.91
    Qty in Cart: 0
    Quantity:
    Price:
    $16.91
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-701

    PARTS UNLIMITED Ring Set R09-701

    PARTS UNLIMITED

    $14.79
    Worn or damaged piston rings directly compromise cylinder pressure, allowing combustion gases to bypass the seal and rob your engine of power while increasing oil consumption. This PARTS UNLIMITED Ring Set R09-701 restores proper compression and sealing...
    R09701
    SKU:
    R09701
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BORE SIZE METRIC:
    62.00 MM
    PISTON SIZE IMPERIAL:
    STANDARD
    PRODUCT NAME:
    PISTON RING
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    SNOW
    UNITS:
    SET
    $14.79
    Qty in Cart: 0
    Quantity:
    Price:
    $14.79
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-7512

    PARTS UNLIMITED Ring Set R09-7512

    PARTS UNLIMITED

    $14.79
    A worn or damaged ring set directly compromises compression, oil control, and fuel efficiency—symptoms that worsen quickly once ignored. PARTS UNLIMITED's R09-7512 Ring Set restores proper piston sealing, recovering lost horsepower and preventing costly...
    R097512
    SKU:
    R097512
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BORE SIZE METRIC:
    62.00 MM
    UNITS:
    SET
    RIDING STYLE:
    SNOW
    PISTON SIZE IMPERIAL:
    +0.020'
    PRODUCT NAME:
    PISTON RING
    PISTON MATERIAL:
    ALUMINUM
    $14.79
    Qty in Cart: 0
    Quantity:
    Price:
    $14.79
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-7514

    PARTS UNLIMITED Ring Set R09-7514

    PARTS UNLIMITED

    $16.91
    A failed piston ring set compromises compression, increases blow-by, and degrades engine performance across the board. The PARTS UNLIMITED Ring Set R09-7514 restores proper sealing and combustion efficiency, ensuring your engine performs at spec. Whether...
    R097514
    SKU:
    R097514
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PISTON SIZE IMPERIAL:
    +0.040'
    PISTON MATERIAL:
    ALUMINUM
    BORE SIZE METRIC:
    62.00 MM
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    RIDING STYLE:
    SNOW
    $16.91
    Qty in Cart: 0
    Quantity:
    Price:
    $16.91
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-752

    PARTS UNLIMITED Ring Set R09-752

    PARTS UNLIMITED

    $17.97
    Piston ring wear is one of the most common causes of compression loss and increased blowby in high-performance engines. The PARTS UNLIMITED Ring Set R09-752 restores proper sealing between your piston and cylinder wall, recovering lost horsepower and...
    R09752
    SKU:
    R09752
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BORE SIZE METRIC:
    67.50 MM
    PISTON SIZE IMPERIAL:
    STANDARD
    RIDING STYLE:
    SNOW
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    PISTON MATERIAL:
    ALUMINUM
    $17.97
    Qty in Cart: 0
    Quantity:
    Price:
    $17.97
    Subtotal:
  • PARTS UNLIMITED Ring Set R09-7522

    PARTS UNLIMITED Ring Set R09-7522

    PARTS UNLIMITED

    $17.97
    Piston ring degradation is one of the most common causes of compression loss and oil consumption in high-mileage engines. The PARTS UNLIMITED Ring Set R09-7522 restores proper ring seal and cylinder wall contact, ensuring optimal combustion pressure and...
    R097522
    SKU:
    R097522
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    SNOW
    PISTON MATERIAL:
    ALUMINUM
    BORE SIZE METRIC:
    67.50 MM
    PISTON SIZE IMPERIAL:
    +0.020'
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    $17.97
    Qty in Cart: 0
    Quantity:
    Price:
    $17.97
    Subtotal:
  • Total: items /

Adding your products to cart

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)

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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