HOOTO 725 V-Belt for 30-Series Torque Converters — 725mm x 17.5mm Black, Heat-Resistant Replacement for Mudhead & Trailmaster

HOOTO 725 is a replacement 725mm x 17.5mm V-belt designed for 30-series torque converters on mid-size go-karts, providing durable drive performance for models like Mudhead 208R, Hammerhead 80T and Trailmaster MB200.

Replace worn or slipping belts with a specifically sized drive belt engineered for small off-road karts and 6.5 hp engines. This HOOTO 725 belt is molded from heat-resistant rubber compounds and sized to match OEM part numbers for a straightforward swap without modifying the primary drivetrain components.

Will this belt fit my kart's torque converter or primary drive?

If your machine uses a 30-series torque converter and the OEM belt specification calls for a 725mm length, this belt is a direct match. It is commonly used as an aftermarket replacement where factory part numbers like 9.110.018 or 9.100.018-725 are listed.

• Length: 725 mm (28.54 inches)
• Width: 17.5 mm (0.7 inches)
• Compatible examples: Mudhead 208R, Hammerhead 80T, Trailmaster MB200, Mid XRX
• Fits karts with typical 6.5 hp engine setups using a 30-series torque converter

How durable and heat-resistant is the HOOTO 725 belt?

The belt is manufactured from reinforced rubber formulated for long wear and dimensional stability under higher temperatures. You can expect reduced stretching and consistent tension over extended mileage compared with lower-grade belts.

• Reinforced rubber construction for tear resistance
• Good heat resistance to reduce early deformation
• Designed for steady performance in stop-start and high-load conditions

How easy is installation and which parts does it replace?

Installation is plug-and-play for systems that accept a 725mm x 17.5mm V-belt; no belt trimming or converter modification is required. It replaces common OEM numbers and fits directly onto pulleys used in the listed kart models.

• Direct replacement for 725 drive belt and equivalent OEM numbers
• No alteration to torque converter or pulleys needed for proper fit
• Suitable for routine DIY tune-ups and workshop belt swaps

What performance can I expect on track or trail?

Expect consistent power transfer and reliable belt life when the belt is correctly tensioned and aligned. While not a high-performance racing belt, it is formulated to deliver steady traction and reduce premature slip in typical recreational and utility kart use.

• Engineered for high mileage in recreational driving
• Stable grip on drive and driven pulleys to minimize slip
• Recommended for standard 6.5 hp mid-size kart setups

Who is this for: The HOOTO 725 belt is aimed at owners of mid-size go-karts and utility off-road karts that require a 30-series torque converter belt — especially those running Mudhead 208R, Hammerhead 80T, Trailmaster MB200, Mid XRX or similar models. It’s a practical choice for do-it-yourself mechanics, small repair shops, and riders who need a durable, OEM-sized replacement that restores reliable drive performance without fuss.