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Metallic go-kart torque converter kit with pulleys and rubber belt

VEVOR

VEVOR Go-Kart Torque Converter 30 Series 3/4" Clutch Kit

SKU CH-JSY3-KQ419

Asymmetrical 30-series torque converter kit with 3/4-inch driver and 5/8-inch driven pulleys plus a 725 drive belt for 2-8 HP engines

  • TypeOther Appliances
  • Width8.27
  • Smooth power transfer with 30 series asymmetrical driver pulley
  • Fits 3/4 inch engine shafts using 19.05 mm bore
  • Includes 725 rubber drive belt for immediate installation
  • Replaces Comet 219552 Manco 5957 Yerf Dog 43201 parts
  • Lightweight steel and aluminum alloy construction at 3.3 kg

Go-Kart Torque Converter Kit

This 30 series asymmetrical driver pulley kit replaces Comet 219552, Manco 5957 and Yerf Dog Q43201W units on 2 to 8 HP small engines. It includes a steel and aluminium alloy drive pulley, a 725 rubber drive belt and a driven pulley, all supplied new in a single package. The 3/4 inch drive wheel bore fits common crankshafts on recreational go-karts and mini-bikes.

Sustained Load Behaviour

The asymmetrical pulley design varies the effective drive ratio as engine speed rises, keeping the belt engaged without the sudden grab of a centrifugal clutch. Steel and aluminium alloy construction resists heat buildup during extended runs, while the rubber belt maintains grip across the operating range. The kit weighs 3.3 kg, reflecting solid components that absorb vibration under continuous throttle.

Compatibility Checks

Verify that your engine crankshaft measures exactly 3/4 inch (19.05 mm) and that the driven shaft accepts a 5/8 inch (15.875 mm) bore before ordering. Confirm the 8.27 width clearance inside your frame and that the existing belt routing matches the 725 belt length supplied. Buyers needing a different bore size, a symmetrical pulley or a heavier-duty belt for more than 8 HP should look elsewhere.

Highlights

  • Smooth power transfer with 30 series asymmetrical driver pulley
  • Fits 3/4 inch engine shafts using 19.05 mm bore
  • Includes 725 rubber drive belt for immediate installation
  • Replaces Comet 219552 Manco 5957 Yerf Dog 43201 parts
  • Lightweight steel and aluminum alloy construction at 3.3 kg

Specifications

TypeOther Appliances
Width8.27

Questions about this item

Does the 30 Series driver pulley run hot during long rides?

The steel and aluminium alloy construction dissipates heat from the belt interface, and the 725 rubber belt is rated for continuous duty on 2-8 HP engines.

Must I supply my own engine shaft and driven sprocket to complete the kit?

The kit includes the driver pulley, driven pulley and belt; you need a 3/4 inch engine crankshaft and a 5/8 inch driven shaft on the axle or jack-shaft.

Will the 19.05 mm bore fit the crankshaft on my older Comet 219552 setup?

Yes — the driver pulley inner diameter is 19.05 mm (3/4 inch), matching the Comet 219552, Manco 5957 and Yerf Dog Q43201W replacements listed.

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