30 Series 6.5 HP Go Kart Mini Bike Torque Converter Clutch

The TadaMark 30 Series Torque Converter Driver Clutch is a direct-replacement 6" diameter clutch with a 3/4" bore designed to deliver reliable power transfer for 6.5 HP (212cc) go-kart and mini-bike engines compatible with Comet/Manco 219552A.

This replacement driver clutch fits small-engine applications that use a 3/4" straight crankshaft and are built around the 30 series torque converter standard. Constructed from iron and aluminum alloys, the unit balances durability and thermal dissipation for extended use on recreational vehicles. It is sold as a like-for-like substitute for part number 219552A and targets engines typically in the 2HP–8HP range, with recommended use on 6.5 HP (212cc) engines.

Will this clutch fit my go-kart or mini-bike engine?

Check the crankshaft diameter and series before purchase. The TadaMark driver clutch is specifically sized for a 3/4" (19.05 mm) straight crankshaft and conforms to the 30 series torque converter pattern.

• Fits 3/4" bore straight crankshafts only (19.05 mm).
• Designed for 30 series torque converters and replaces part 219552A.
• Compatible with Comet and Manco systems used on go-karts and mini-bikes.
• Not compatible with 0.787" (20 mm) bores—measure before ordering.

How does this clutch affect engine performance and durability?

The clutch transfers torque from the crank to the driven pulley while helping manage heat and mechanical load. Quality iron and aluminum construction improves heat dispersion and resists wear under normal recreational use.

• Robust materials reduce deformation and improve service life.
• Efficient thermal dissipation lowers heat-related wear.
• Properly matched to 6.5 HP engines for balanced power delivery.
• Helps prevent overloading the engine when installed and used correctly.

Do I need to break in the clutch after installation?

Yes — a brief break-in period ensures the internal shoes seat correctly and prevents excessive slipping or smoke. Follow the recommended initial run steps to establish proper contact areas inside the unit.

• Perform 3–5 short break-in runs under light load.
• Avoid heavy load or high RPMs during the first uses.
• If you notice slipping or smoke, continue gentle break-in until resolved.
• Refer to the product details for step-by-step break-in guidance.

What should I watch out for during ordering and installation?

Confirm bore size, keyway dimensions, and compatibility with your torque converter model before buying. The part includes a 3/16" keyway and is built to match the 6" diameter 30 series form factor.

• Verify 3/4" (19.05 mm) bore, not 20 mm/0.787".
• Includes a 3/16" keyway—ensure crank key fits securely.
• Intended for engines in the 2HP–8HP range, optimal at 6.5 HP/212cc.
• Contact seller support if fitment questions arise before installation.

Who is this for? The TadaMark 30 Series Driver Clutch is aimed at DIY mechanics, kart builders, and small-vehicle hobbyists who need a durable, OEM-style replacement for Comet/Manco 219552A applications. It suits users who can confirm shaft dimensions, are comfortable performing a straightforward installation and initial break-in, and want a robust clutch that balances heat control with dependable torque transfer on go-karts, mini bikes, and similar small-engine projects.