1PZ 17-Tooth Semi-Automatic Clutch Assembly for 50cc–135cc ATVs & Go-Karts — 4.5" Iron Durable

1PZ TA1-17T is a 17-tooth, 4.5" semi-automatic clutch assembly engineered to replace worn clutches on 50cc–135cc Chinese-engine ATVs, dirt bikes, and go-karts.

Whether you’re repairing a TaoTao, SUNL, Roketa, Kazuma, JCL or similar small-engine vehicle, the 1PZ TA1-17T offers a direct-fit semi-automatic option built from durable iron for reliable torque transfer and efficient heat dissipation. This replacement clutch is designed for vehicles with semi-automatic reverse engines and covers common engine sizes from 50cc up to 135cc, making it a practical spare part for workshops and DIY mechanics.

Will this clutch fit my 50cc, 110cc, 125cc or 135cc vehicle?

Compatibility centers on engine type and spline/tooth count. The TA1-17T is made for semi-automatic reverse engine systems and has 17 teeth; it commonly fits Chinese-brand ATVs, dirt bikes and go-karts that use the same 17T standard.

• Fits many TaoTao, Buyang, Coolsport, Lifan, Kazuma, SUNL, Roketa, JCL models.
• Designed for semi-automatic reverse transmissions—confirm engine type before installing.
• Spline/tooth count: 17 teeth; diameter roughly 4.5" (4-1/2").
• Check your old clutch for matching tooth count and diameter to ensure correct replacement.

How durable and heat-resistant is the 1PZ TA1-17T clutch?

This clutch assembly uses quality iron construction to balance strength and weight. The material choice provides good wear resistance and faster heat dissipation compared with lower-grade cast parts, helping maintain performance during routine riding and towing loads.

• Iron construction for improved durability and torque handling.
• Engineered for wear resistance under typical ATV and kart loads.
• Design disperses heat to reduce overheating during repeated engagements.
• Lightweight relative to heavier solid cast replacements, aiding responsiveness.

How do I install the TA1-17T and what comes in the package?

Installation is straightforward for anyone familiar with clutch swaps on small engines, but specific steps vary by model—use a service manual or a guided video for your vehicle. The clutch ships in a 1PZ brand box and includes one 17T semi-automatic clutch assembly; any necessary circlips or bolts should be reused from the original or sourced per your model’s requirements.

• Package contains: 1 x 17T Semi-Automatic Clutch Assembly in 1PZ box.
• Re-use original mounting hardware or replace per manufacturer torque specs.
• Recommended tools: clutch puller (if required), basic wrench set, torque wrench.
• Inspect and replace worn bearings, springs or bell housing as needed during installation.

What performance changes should I expect after replacement?

Replacing a worn clutch restores consistent engagement and reduces slippage, resulting in smoother acceleration and more predictable power delivery. Because the TA1-17T is designed to meet original equipment geometry, you should notice near-original responsiveness without changing gearing or top speed.

• Reduces clutch slippage when worn parts are replaced.
• Improves throttle-to-drive engagement and makes starts more consistent.
• No changes to gear ratios—keeps factory performance characteristics.
• Durable construction helps extend service intervals versus degraded stock parts.

Who is this for? The 1PZ TA1-17T is intended for do-it-yourself mechanics, small repair shops, and owners of 50cc–135cc ATVs, dirt bikes or go-karts that require a 17-tooth semi-automatic clutch replacement. If your vehicle uses a semi-automatic reverse engine and you need a robust, direct-fit iron clutch to restore reliable engagement, this unit is a practical, cost-effective option. Contact support with your vehicle model and engine details if you’re unsure about fitment.