awtetpje Go-Kart Torque Converter Jackshaft Kit — Stepped 0.66"×6.37" Shaft with 10T #40/41 & 12T #35 Sprockets, Keyed, Hardware

This kit from awtetpje supplies the core mechanical parts needed to set up or service a torque-converter-driven jackshaft on mini bikes and go-karts. Each component is sized to work together: a machined jackshaft with a stepped diameter, a precision key, two common sprocket options, fastening hardware, and a retaining ring. The parts are sold as a single set to simplify ordering and reduce compatibility guesswork.

What parts are included and how are they sized?

The set contains a single jackshaft, keyed shaft fasteners, two sprockets, a key, nut, washers, and a snap ring. Dimensions and gear types are provided so you can confirm fitment with your chassis and chain type.

• Jackshaft: 0.66" diameter by 6.37" overall with a step to 18mm, 2.5" from one end
• Key: 0.19" x 3.06" standard rectangular key
• Sprockets: 10-tooth for #40 or #41 chain and 12-tooth for #35 chain (TAV 2 type)
• Fasteners: nut, washers, and snap ring for secure mounting

How will this kit integrate with a go-kart torque converter?

The jackshaft is machined to accept common sprockets and to accept a keyed connection to the torque converter or driven components. The included hardware secures the sprockets and prevents axial movement during operation.

• Stepped shaft lets you mount components at the correct offset
• Keyway ensures positive torque transfer between shaft and sprocket
• Snap ring and washers limit shaft endplay and maintain alignment
• Two sprocket sizes support different final drive ratios and chain types

Which chains and sprockets are compatible with this kit?

This kit provides two sprocket choices to match commonly used chain standards on small vehicles. Confirm your vehicle’s chain pitch before installation to pick the correct sprocket.

• 10-tooth sprocket fits #40 and #41 chain pitches
• 12-tooth sprocket fits #35 chain pitch
• TAV 2 style sprocket compatible with standard small-vehicle drivetrains
• Use correct chain width and tension for reliable operation

How is the jackshaft constructed and what are the mounting details?

The jackshaft is a turned steel shaft dimensioned for small-engine drivetrains, featuring a stepped diameter to set component positions. The 2-1/2" offset from the end provides a consistent mounting location for sprockets or bearings.

• Shaft overall length: 6.37" with 0.66" diameter section
• Step reduces to 18mm where required for mating parts
• Key slot accepts the supplied 0.19" x 3.06" key for positive drive
• Package includes nut, washers, and snap ring to secure assembly

Who this is for: DIY go-kart builders, small-vehicle fabricators, and repair technicians who need a ready-made jackshaft assembly designed for torque-converter systems. If you require a compact, keyed shaft with common sprocket choices and the fastening hardware to assemble a reliable drivetrain, this awtetpje kit provides the essential parts in one purchase. Confirm chain pitch and shaft clearances on your machine before installation to ensure proper fit.