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ATV/UTV Piston and Ring Kits

ATV/UTV Piston and Ring Kits

ATV/UTV Piston and Ring Kits

ATV/UTV Piston & Ring Kits at JJ Motorsports

Rebuild your ATV/UTV engine with premium forged piston and ring kits from JJ Motorsports, featuring high-compression and big-bore options for massive power gains on Yamaha YFZ450, Honda TRX450R, Suzuki LTZ400, and more. These race-proven kits deliver superior durability and performance in off-road, trail, and dune conditions.

Shop Millennium, JE Pistons, and Wossner piston kits for championship-level quality. Explore related categories such as ATV/UTV engine for cylinders and gaskets, or ATV/UTV for cams and exhaust to complete your top-end rebuild and dominate the track or trail.

Top ATV/UTV Piston & Ring Kits

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Wiseco 2006-2009 Suzuki LT-R450 QuadRacer Piston Kit with Gaskets PK1425

    Wiseco 2006-2009 Suzuki LT-R450 QuadRacer Piston Kit with Gaskets PK1425

    WISECO

    $379.95
    When you're pushing your LT-R450 to its limits on the track, your piston kit is the foundation of reliable power delivery. Wiseco's high-silicone forged construction handles sustained high RPMs and thermal stress that stock components simply can't...
    09030489
    SKU:
    09030489
    Availability:
    Ships Same Business Day
    Weight:
    1.77 LBS
    DISPLACEMENT:
    450 CC
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    95.50 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    BORE SIZE METRIC:
    95.50 MM
    COMPRESSION RATIO IMPERIAL:
    13.1:1
    PRODUCT NAME:
    REBUILD KIT
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    62.80 MM
    TYPE:
    TOP END
    $379.95
    Qty in Cart: 0
    Quantity:
    Price:
    $379.95
    Subtotal:
  • Wiseco Honda TRX250X 1987-1992 Piston Kit with Gaskets PK1021

    Wiseco Honda TRX250X 1987-1992 Piston Kit with Gaskets PK1021

    WISECO

    $253.95
    When your TRX250X's engine is showing signs of wear—loss of compression, increased blow-by, or declining top-end power—a quality piston kit is the most direct path to restoring (or exceeding) factory performance. The Wiseco PK1021 delivers a complete...
    09030491
    SKU:
    09030491
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    MODEL:
    FORGED SERIES
    STROKE LENGTH METRIC:
    57.30 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    74.00 MM
    COMPRESSION RATIO IMPERIAL:
    12.0:1
    DISPLACEMENT:
    246 CC
    PISTON DIAMETER METRIC:
    73.95 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    PRODUCT NAME:
    REBUILD KIT
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    $253.95
    Qty in Cart: 0
    Quantity:
    Price:
    $253.95
    Subtotal:
  • Wiseco 68mm Piston Kit for 1987-1993 Suzuki LT230E Quad Runner PK1009

    Wiseco 68mm Piston Kit for 1987-1993 Suzuki LT230E Quad Runner PK1009

    WISECO

    $239.95
    The Wiseco 68mm Piston Kit is engineered for serious 2-cycle performance, delivering the strength and thermal stability needed to withstand aggressive riding and sustained high-RPM operation. If you're rebuilding your LT230E or looking to restore lost...
    09030492
    SKU:
    09030492
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    67.95 MM
    STROKE LENGTH METRIC:
    67.00 MM
    BORE - OVERSIZE METRIC:
    +2.00 MM
    PRODUCT NAME:
    REBUILD KIT
    BORE SIZE METRIC:
    68.00 MM
    COMPRESSION RATIO IMPERIAL:
    10.25:1
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE:
    +2,00 MM
    DISPLACEMENT:
    229 CC
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    PISTON SIZE METRIC:
    +2.00 MM
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    $239.95
    Qty in Cart: 0
    Quantity:
    Price:
    $239.95
    Subtotal:
  • Wiseco Piston Kit for 1987-1996 Suzuki LT-4WD QuadRunner 250 67.00mm 10.25:1 Compression PK1012

    Wiseco Piston Kit for 1987-1996 Suzuki LT-4WD QuadRunner 250 67.00mm 10.25:1 Compression PK1012

    WISECO

    $229.95
    If you're rebuilding a 1987-1996 Suzuki LT-4WD QuadRunner 250, choosing the right piston kit directly impacts engine longevity and power delivery. Wiseco's high-silicone forged construction handles the extreme temperatures and pressures of 2-cycle...
    09030502
    SKU:
    09030502
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    MODEL:
    FORGED SERIES
    STROKE LENGTH METRIC:
    67.00 MM
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    67.00 MM
    COMPRESSION RATIO IMPERIAL:
    10.25:1
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    DISPLACEMENT:
    249 CC
    PRODUCT NAME:
    REBUILD KIT
    ENGINE TYPE:
    4-STROKE
    PISTON DIAMETER METRIC:
    66.95 MM
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    $229.95
    Qty in Cart: 0
    Quantity:
    Price:
    $229.95
    Subtotal:
  • WISECO Piston Kit with Gaskets PK1023

    WISECO Piston Kit with Gaskets PK1023

    WISECO

    $234.95
    If you're rebuilding a 2-cycle top end, you need a piston kit engineered to handle sustained high RPM and temperature extremes without failure. Wiseco's forged-aluminum construction delivers the strength and thermal stability that separates reliable...
    09030505
    SKU:
    09030505
    Availability:
    Ships Same Business Day
    Weight:
    1.65 LBS
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    246 CC
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE SIZE METRIC:
    75.00 MM
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    BORE - OVERSIZE:
    +1,00 MM
    PISTON DIAMETER METRIC:
    74.95 MM
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    COMPRESSION RATIO IMPERIAL:
    12.0:1
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    57.30 MM
    $234.95
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • Wiseco Yamaha YFM700 Grizzly 2007-2013 Piston Kit PK1419

    Wiseco Yamaha YFM700 Grizzly 2007-2013 Piston Kit PK1419

    WISECO

    $334.95
    If you're rebuilding the top end on your YFM700 Grizzly, you need pistons that can handle sustained high RPM and extreme operating temperatures without sacrificing reliability. Wiseco's high-silicone forged aluminum construction delivers the strength and...
    09030508
    SKU:
    09030508
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    PRODUCT NAME:
    REBUILD KIT
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    84.00 MM
    BORE SIZE METRIC:
    102.00 MM
    PISTON DIAMETER METRIC:
    101.94 MM
    TYPE:
    TOP END
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    9.2:1
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    DISPLACEMENT:
    686 CC
    MODEL:
    FORGED SERIES
    RIDING STYLE:
    UTV
    Qty in Cart: 0
    Quantity:
    Price:
    $334.95
    Subtotal:
  • Wiseco Piston Kit Yamaha YFZ350 Banshee 1987-2006 64.25mm 513M06425

    Wiseco Piston Kit Yamaha YFZ350 Banshee 1987-2006 64.25mm 513M06425

    WISECO

    $154.95
    If you're running a Banshee and want measurable gains in horsepower and throttle response, a quality piston upgrade is one of the most effective investments you can make. The Wiseco 513M06425 is precision-engineered to tighter tolerances than OEM...
    09102794
    SKU:
    09102794
    Availability:
    Ships Same Business Day
    Weight:
    0.64 LBS
    MODEL:
    PRO-LITE
    BORE SIZE METRIC:
    64.25 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    ATV
    BORE - OVERSIZE METRIC:
    +0.25 MM
    DISPLACEMENT:
    350 CC
    STROKE LENGTH METRIC:
    54.00 MM
    BORE - OVERSIZE:
    +0,25 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • Wiseco Piston Kit 1987-1990 Suzuki LT500R 88.50mm 561M08850

    Wiseco Piston Kit 1987-1990 Suzuki LT500R 88.50mm 561M08850

    WISECO

    $209.95
    The Wiseco Piston Kit delivers the precision and durability required for consistent high-RPM performance in your LT500R. Factory pistons wear unevenly under sustained racing loads—this kit restores your engine to factory-new tolerances with superior...
    09102795
    SKU:
    09102795
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    BORE - OVERSIZE METRIC:
    +2.50 MM
    MODEL:
    PRO-LITE
    BORE SIZE METRIC:
    88.50 MM
    ENGINE TYPE:
    2-STROKE
    BORE - OVERSIZE:
    +2,50 MM
    DISPLACEMENT:
    499,50 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    86.00 MM
    UNITS:
    EACH
    $209.95
    Qty in Cart: 0
    Quantity:
    Price:
    $209.95
    Subtotal:
  • Wiseco Piston Kit for Honda TRX450FM 1998-2004 PK1590

    Wiseco Piston Kit for Honda TRX450FM 1998-2004 PK1590

    WISECO

    $254.95
    If you're rebuilding a Honda TRX450FM or pushing its limits on the track, a worn piston kit will rob you of power and reliability. The Wiseco PK1590 delivers the durability and precision fit you need to maximize engine efficiency and longevity under...
    09030649
    SKU:
    09030649
    Availability:
    Ships Same Business Day
    Weight:
    1.95 LBS
    PISTON DIAMETER METRIC:
    90.42 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    PRODUCT NAME:
    REBUILD KIT
    BORE SIZE METRIC:
    90.50 MM
    COMPRESSION RATIO IMPERIAL:
    9.5:1
    DISPLACEMENT:
    432 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    68.00 MM
    BORE - OVERSIZE:
    +0,50 MM
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $254.95
    Subtotal:
  • Wiseco Piston Kit for Honda TRX450FE 2002-2006 91.5mm 4 Stroke PK1592

    Wiseco Piston Kit for Honda TRX450FE 2002-2006 91.5mm 4 Stroke PK1592

    WISECO

    $286.82
    The Honda TRX450FE's original pistons will eventually wear, reducing compression and throttle response. This Wiseco piston kit restores—and improves—your engine's performance with high-silicone forged aluminum that handles sustained high-RPM loads...
    09030651
    SKU:
    09030651
    Availability:
    Ships Same Business Day
    Weight:
    1.75 LBS
    COMPRESSION RATIO IMPERIAL:
    9.5:1
    PISTON DIAMETER METRIC:
    91.42 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE:
    +1,50 MM
    BORE SIZE METRIC:
    91.50 MM
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    BORE - OVERSIZE METRIC:
    +1.50 MM
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    68.00 MM
    TYPE:
    TOP END
    DISPLACEMENT:
    432 CC
    PRODUCT NAME:
    REBUILD KIT
    $286.82
    Qty in Cart: 0
    Quantity:
    Price:
    $286.82
    Subtotal:
  • Wiseco Piston Kit 96.00mm 13.5:1 Honda TRX450R 2006-2009 4905M09600

    Wiseco Piston Kit 96.00mm 13.5:1 Honda TRX450R 2006-2009 4905M09600

    WISECO

    $288.95
    The Wiseco Piston Kit delivers the precision and durability your TRX450R demands, whether you're pushing the limits on the track or tackling demanding terrain. Built to exact specifications, this 96.00mm piston kit maintains consistent compression and...
    09101671
    SKU:
    09101671
    Availability:
    Ships Same Business Day
    Weight:
    1.01 LBS
    DISPLACEMENT:
    450 CC
    PISTON MATERIAL:
    FORGED
    STROKE LENGTH METRIC:
    64.80 MM
    BORE SIZE METRIC:
    96.00 MM
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    PISTON
    SKIRT COATING:
    MOLY COATED
    $288.95
    Qty in Cart: 0
    Quantity:
    Price:
    $288.95
    Subtotal:
  • Wiseco Piston Kit with Gasket for Polaris Predator 500 2003-2007 PK1645

    Wiseco Piston Kit with Gasket for Polaris Predator 500 2003-2007 PK1645

    WISECO

    $319.95
    When you're pushing your Predator 500 to its limits, a stock piston just won't cut it. Wiseco's forged piston kit delivers the durability and thermal stability needed for sustained high-RPM performance, especially in forced induction or heavily modified...
    09030653
    SKU:
    09030653
    Availability:
    Ships Same Business Day
    Weight:
    2.34 LBS
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    499 CC
    STROKE LENGTH METRIC:
    64.60 MM
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    RIDING STYLE:
    ATV
    SKIRT COATING:
    NON-COATED
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    PRODUCT NAME:
    REBUILD KIT
    BORE SIZE METRIC:
    99.20 MM
    COMPRESSION RATIO IMPERIAL:
    12.5:1
    PISTON DIAMETER METRIC:
    99.12 MM
    TYPE:
    TOP END
    UNITS:
    KIT
    $319.95
    Qty in Cart: 0
    Quantity:
    Price:
    $319.95
    Subtotal:
  • Wiseco Yamaha YFM80 Grizzly 2005 Piston Kit with Gasket PK1678

    Wiseco Yamaha YFM80 Grizzly 2005 Piston Kit with Gasket PK1678

    WISECO

    $209.95
    A top-end rebuild demands precision components that won't compromise under sustained load or high RPM operation. The Wiseco YFM80 Grizzly piston kit delivers a complete solution with high-silicone forged pistons engineered to minimize thermal expansion...
    09030660
    SKU:
    09030660
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE SIZE METRIC:
    47.00 MM
    PISTON DIAMETER METRIC:
    46.97 MM
    PRODUCT NAME:
    REBUILD KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    45.60 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    DISPLACEMENT:
    79 CC
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $209.95
    Subtotal:
  • Wiseco Piston Kit 68.50mm for Honda ATC250R 1985-1986 PK1081

    Wiseco Piston Kit 68.50mm for Honda ATC250R 1985-1986 PK1081

    WISECO

    $284.95
    If you're running a Honda ATC250R and serious about maximizing engine output, top-end wear is your primary concern. The Wiseco Piston Kit PK1081 delivers factory-tight tolerances and forged construction that handles sustained high RPM and thermal stress...
    09030461
    SKU:
    09030461
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE - OVERSIZE METRIC:
    +2.50 MM
    BORE SIZE METRIC:
    68.50 MM
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    UNITS:
    KIT
    BORE - OVERSIZE:
    +2,50 MM
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    72.00 MM
    DISPLACEMENT:
    246 CC
    PISTON DIAMETER METRIC:
    68.43 MM
    SKIRT COATING:
    NON-COATED
    Qty in Cart: 0
    Quantity:
    Price:
    $284.95
    Subtotal:
  • Wiseco Yamaha YFZ350 Banshee 1987-2006 Piston Kit with Gaskets PK149

    Wiseco Yamaha YFZ350 Banshee 1987-2006 Piston Kit with Gaskets PK149

    WISECO

    $379.95
    When you're pushing your YFZ350 Banshee to the limit, stock pistons won't cut it. The Wiseco PK149 kit delivers the durability and precision engineering you need for reliable high-performance operation, whether you're overboring for extra displacement or...
    09030465
    SKU:
    09030465
    Availability:
    Ships Same Business Day
    Weight:
    2.15 LBS
    BORE - OVERSIZE:
    +0,50 MM
    PISTON MATERIAL:
    ALUMINUM
    DISPLACEMENT:
    352 CC
    STROKE LENGTH METRIC:
    54.00 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    64.50 MM
    MODEL:
    RACER'S CHOICE
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    UNITS:
    EACH
    COOLING SYSTEM:
    LIQUID COOLED
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    REBUILD KIT
    $379.95
    Qty in Cart: 0
    Quantity:
    Price:
    $379.95
    Subtotal:
  • Wiseco Piston Kit Standard 94mm 10.5:1 Honda TRX450R 2004-2005 4848M09400

    Wiseco Piston Kit Standard 94mm 10.5:1 Honda TRX450R 2004-2005 4848M09400

    WISECO

    $255.95
    If you're running a TRX450R in competitive or high-demand recreational settings, your stock piston won't cut it—you need a forged piston engineered to handle sustained power and maintain precision under load. The Wiseco 94mm 10.5:1 piston kit delivers...
    09100665
    SKU:
    09100665
    Availability:
    Ships Same Business Day
    Weight:
    1.04 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    BORE SIZE METRIC:
    94 MM
    DISPLACEMENT:
    450 CC
    SKIRT COATING:
    MOLY COATED
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    64.80 MM
    UNITS:
    EACH
    $255.95
    Qty in Cart: 0
    Quantity:
    Price:
    $255.95
    Subtotal:
  • Wiseco Piston Kit Honda TRX450R 2004-2005 94.00mm 13.1:1 4851M09400

    Wiseco Piston Kit Honda TRX450R 2004-2005 94.00mm 13.1:1 4851M09400

    WISECO

    $274.95
    The stock piston in your TRX450R has limits—upgrade to the Wiseco 94.00mm kit to reclaim lost compression efficiency and unlock measurable gains in throttle response and acceleration. This precision-engineered piston raises your compression ratio to 13...
    09100668
    SKU:
    09100668
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    94 MM
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    SKIRT COATING:
    ARMORGLIDE®
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    COMPRESSION RATIO IMPERIAL:
    13.1:1
    DISPLACEMENT:
    450 CC
    STROKE LENGTH METRIC:
    64.80 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $274.95
    Subtotal:
  • Wiseco 86mm Piston Kit for Honda TRX400EX 1999-2008 PK1038

    Wiseco 86mm Piston Kit for Honda TRX400EX 1999-2008 PK1038

    WISECO

    $319.95
    When you're pushing your TRX400EX to its limits, a worn or damaged top-end becomes the weak link in your drivetrain. The Wiseco 86mm Piston Kit delivers the strength and precision your engine needs to handle aggressive riding and sustained high...
    09030471
    SKU:
    09030471
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    BORE - OVERSIZE:
    +1,00 MM
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    REBUILD KIT
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    86.00 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    DISPLACEMENT:
    397 CC
    PISTON DIAMETER METRIC:
    85.95 MM
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    70.00 MM
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $319.95
    Subtotal:
  • Wiseco Piston Kit 95mm 12:1 Compression Yamaha YFZ450 2004-2005 PK1071

    Wiseco Piston Kit 95mm 12:1 Compression Yamaha YFZ450 2004-2005 PK1071

    WISECO

    $349.95
    If you're running a YFZ450 at the edge of its limits, a worn or damaged piston is the quickest path to catastrophic engine failure. This Wiseco kit delivers a complete top-end solution with a forged piston engineered to handle sustained high RPM and...
    09030474
    SKU:
    09030474
    Availability:
    Ships Same Business Day
    Weight:
    1.85 LBS
    BORE SIZE METRIC:
    95.00 MM
    MODEL:
    FORGED SERIES
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    12.0:1
    PISTON DIAMETER METRIC:
    94.94 MM
    SKIRT COATING:
    ARMORGLIDE®
    STROKE LENGTH METRIC:
    62.00 MM
    UNITS:
    KIT
    PRODUCT NAME:
    REBUILD KIT
    DISPLACEMENT:
    439 CC
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $349.95
    Subtotal:
  • Wiseco Piston Kit for Honda TRX450R 2004-2005 94mm PK1070

    Wiseco Piston Kit for Honda TRX450R 2004-2005 94mm PK1070

    WISECO

    $384.95
    If you're running a Honda TRX450R and pushing performance limits, a worn or damaged piston directly tanks your power output and engine reliability. The Wiseco PK1070 kit replaces your entire top-end assembly with precision-forged components engineered to...
    09030486
    SKU:
    09030486
    Availability:
    Ships Same Business Day
    Weight:
    1.80 LBS
    COMPRESSION RATIO IMPERIAL:
    13.1:1
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    93.92 MM
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    BORE SIZE METRIC:
    94.00 MM
    DISPLACEMENT:
    450 CC
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    64.80 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    REBUILD KIT
    SKIRT COATING:
    ARMORGLIDE®
    Qty in Cart: 0
    Quantity:
    Price:
    $384.95
    Subtotal:
  • Total: items /

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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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