Twisted Urethane Water Pump Belt
The Twisted Urethane Water Pump Belt is a durable replacement for a standard o-ring style belt in an external kart water pump system. Tested and proven durable over 15+ years of use, its urethane construction is resistant to cracking. When properly installed and tensioned, it can be as durable as—or more durable than—a conventional o-ring belt.
Features and Available Sizes
- Proven durability: Tested through more than 15 years of use, with durable urethane construction that resists cracking.
- Installation without axle removal: The hook-and-clip connection allows installation without removing the kart's axle.
- Effective diameter: 3/16"
- 14-inch length: Approximately 4.5-inch diameter.
- 15-inch length: Approximately 4.8-inch diameter.
- Sold individually: Each purchase includes one twisted urethane water pump belt.
- Quantity discount: Buy 10 or more belts and save 20%.
External Water Pump Applications
For kart engines that run an external water pump, including TaG, IAME X30, ROK GP, KZ shifter and ROK Shifter setups. It can also be used with other engines running an external water pump, provided the pulley groove and belt length are compatible.
Check your water pump pulley setup and required belt length before ordering. Fitment depends on the external pump drive arrangement, not just the engine model.
OEM OTK/Tony Kart Pulley Compatibility
This belt does not fit the OEM OTK / Vortex Tony Kart water pump axle pulley. The pulley groove is too narrow to accommodate the Twisted Urethane Water Pump Belt.
Important Installation Instructions
Do not over-tension the belt, and do not cinch down on or crimp the small stainless steel clip. Simply hook the connection together and adjust the belt tension as needed.
Clamping the clip tightly against the urethane creates a stress riser—a point where stress is concentrated—which can cause the belt to break at that connection. Excessive tension can also shorten belt life.
Proper tension and an unclamped clip connection are essential for long service life. Correctly set up, this twisted urethane water pump belt can match or exceed the durability of a standard o-ring style belt.
