TadaMark 30 Series torque converter driven pulley — 6" diameter, 5/8" bore iron replacement for 2–7HP mini bikes & go-karts

Compact 30 Series torque converter driven pulley by TadaMark: a 6" diameter, 5/8" bore replacement designed for mini bikes, go-karts and small lawn equipment with 2–7HP engines.

This single-piece driven pulley (30 Series) is engineered to replace Comet part numbers 219456A, 217610A and 219457A. Built from high-quality iron for strength and heat dissipation, it provides the mechanical interface between the engine’s clutch and the driven belt system. The pulley fits a wide range of light-duty machines — mini bikes, go-karts, and push or small riding lawnmowers — that use a 5/8" driven shaft and 6" pulley diameter.

How will this pulley fit my machine?

The TadaMark 30 Series driven pulley accepts a 5/8" shaft and measures 6" across, matching common dimensions on many small engines and transmissions. It is intended as a direct-fit replacement for the listed Comet part numbers, but measurements and keyways should be verified before installation.

• Driven shaft bore: 5/8" (0.625 inch)
• Pulley diameter: 6 inches
• Series: 30 Series compatible with standard torque converter assemblies
• Replaces Comet: 219456A, 217610A, 219457A

What engines and vehicles is this compatible with?

Designed for small engines rated roughly 2 to 7 horsepower, this pulley suits lightweight recreational and utility applications. Use it on mini bikes, go-karts, small lawn tractors, and certain garden machines that use a 30 Series torque converter setup.

• Recommended engine range: 2HP–7HP maximum
• Common uses: mini bike, go-kart, lawnmower drive systems
• Works with standard 30 Series torque converters and belt drives

What is the construction and how durable is it?

The pulley is cast from high-grade iron for a balance of strength and heat management. That material choice helps resist wear under typical operating conditions and provides faster heat dissipation than some softer metals, while keeping weight manageable for small machines.

• Material: durable iron casting
• Benefits: wear resistance and improved heat dissipation
• Design: lightweight for small engine applications

Are there special installation or break-in steps I should follow?

Yes — new clutches and driven pulleys require a brief break-in period to establish reliable friction contact. After installation, run 3–5 short break-in cycles at moderate load; this helps the clutch shoes seat properly and prevents slipping or smoke from insufficient contact area.

• Perform 3–5 short break-ins after installation
• Avoid heavy loads or full-throttle runs during break-in
• If slipping or smoke occurs, stop and verify seating and alignment

Who is this for: This TadaMark 30 Series 6" driven pulley is intended for DIY mechanics, small-vehicle hobbyists and equipment owners who need a reliable replacement pulley for 2–7HP engines. It’s ideal when your machine specifies a 30 Series driven pulley with a 5/8" bore or replaces Comet part numbers 219456A, 217610A or 219457A. If you’re restoring a mini bike, updating a go-kart drive or repairing a small lawnmower, this pulley gives you a straightforward, serviceable option.