Torque Converters & Belt Drive Clutches

Torque converters and belt-drive clutch systems allow small engines to deliver smooth, automatic power transfer without manual shifting. These systems use a combination of a drive clutch, driven pulley, and V-belt to adjust gear ratio based on engine RPM and load, providing strong low-speed torque and efficient acceleration. Over time, belts can glaze or stretch, pulleys may wear, and springs or ramps can lose tension—leading to slipping, weak takeoff, or reduced top speed. The parts in this category support many common converter setups used on go karts, mini bikes, small ATVs, and utility machines, including Comet-style 30-series and heavier-duty 40-series systems.

This category may include:

• Drive clutches and driven pulleys for belt-drive torque converter systems
• Replacement V-belts in multiple lengths and profiles
• Backing plates, covers, and mounting hardware
• Comet-style 30-series, 40-series, and similar torque converter components
• Parts compatible with go karts, mini bikes, small ATVs, and utility engines

Additional notes about this collection:

• Helps restore proper engagement, stronger low-end torque, and smoother acceleration
• Useful for repairing worn converters or upgrading older belt-drive systems
• Recommended when replacing belts, pulleys, or clutch components showing heat damage or wear
• Designed for accurate fitment when matched to engine size, belt profile, and converter series