TadaMark Driver Clutch Torque Converter for 6.5HP Engines — 3/4" Bore, 6" 30-Series, Iron/Aluminium

The TadaMark 30 Series driver clutch is a 6" torque converter component designed for 3/4" straight crankshafts on 6.5HP (212cc) small engines, compatible with Comet/Manco part 219552A.

This replacement driver clutch (torque converter pulley) is built to match 30-series go-kart and mini-bike setups that use a 3/4" (19.05mm) bore. Constructed from iron and aluminum alloys, it balances durability and heat dissipation for frequent recreational use. It’s intended for small-engine vehicles such as go karts, mini bikes and similar equipment where a 3/4" crankshaft fits; it is not the 0.787" (20mm) variant.

How does this clutch fit my engine and gearbox?

The TadaMark driver clutch is sized for a straight crankshaft with a 3/4" bore and a 3/16" keyway. It replaces Comet/Manco part number 219552A and conforms to the 30-series torque converter standard used on many 6.5HP (212cc) engines.

• 3/4" (19.05mm) bore—matches straight crankshafts only
• 3/16" keyway—standard key for secure coupling
• 6" diameter—fits 30-series housings and belts
• Replaces part number 219552A for Comet/Manco units

What materials and performance benefits does it offer?

Fabricated from a combination of iron and aluminum, this driver clutch aims to withstand shock loads while transferring heat away from the operating surfaces. The material choice provides a solid balance of strength and thermal management for frequent starts and stop cycles typical in off-road recreation.

• Iron components for wear resistance and structural strength
• Aluminum sections to speed heat dissipation and save weight
• Precision bore and keyway for reliable power transfer
• Designed to reduce engine load by optimizing engagement

What should I do during initial installation and break-in?

After installation, perform a short break-in routine so the internal shoes bed in properly and achieve full contact. If the clutch slips or produces smoke during early runs, that’s often due to insufficient break-in; increase the bedding cycles and avoid prolonged heavy loads until the clutch seats.

• Run 3–5 controlled warm-up cycles at modest throttle
• Avoid prolonged high-load use until shoes fully seat
• If slipping persists, recheck alignment, key, and shaft fit
• Contact support if fitment or performance issues continue

Will this part work on different engine sizes or bore variations?

It is engineered specifically for engines with a 3/4" straight crankshaft and is recommended for 2–8HP range, with best application around 6.5HP (212cc). It will not fit 0.787" (20mm) bores—measure your crankshaft before ordering to ensure compatibility.

• Recommended engine range: 2HP–8HP; ideal for 6.5HP (212cc)
• Only fits 3/4" (19.05mm) straight crankshafts
• Not compatible with 0.787" (20mm) bores
• Commonly used on Comet and Manco 30-series systems

Who is this for: The TadaMark 30 Series driver clutch is made for backyard builders, go-kart hobbyists, and small-vehicle repairers who need a direct-fit replacement for Comet/Manco 219552A style torque converters. Choose this part when you require a durable, correctly sized 3/4" bore clutch for routine recreational use—measure your shaft, confirm the 3/16" keyway, and follow the recommended break-in steps for reliable operation.