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Peak Shifting Performance

"The Original" Thunder Shift Kit, Heavy Hitters, and more!


Welcome to Thunder Products Clutching. We are your NEW source for snowmobile and ATV clutch performance upgrades.

Here you will find tried and true clutching upgrades proven to give you spot-on holeshots, stronger midrange pull, and better top-end. For the last 25 years, Thunder Shift Kits and Heavy Hitter adjustable weights have proven performance gains. Thunder Products Clutching, LLC is your new source and manufacturer of these and other high-performance drivetrain upgrades. Learn more about us here, but more importantly browse our store and find the right products for your snowmobile or ATV.

Our Most Popular Upgrades

  • Yamaha Secondary Clutch Belt Adjuster & Belt Removal Tool

    $89.95
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  • Arctic Cat Drive Clutch Go-Rings

    $19.95
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  • Thunder Shift Rollers for Yamaha

    $79.95
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  • Thunder Shift Arms for Ski-Doo TRA

    $289.95
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  • 911 Response Clutch Cover

    $259.95
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  • Thunder Shift Heavy Hitters

    $239.95$269.95
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Looking for the best fuel system upgrades for even more performance? Go here!