HTD Belt 26.772in Long 30mm Wide

The Jones Racing Products HTD Belt 26.772in Long 30mm Wide (Model 680-30 HD) is a precision synchronous drive belt engineered for marine engine systems and high-performance marine applications. This HTD (Hybrid Timing Drive) belt delivers reliable power transmission in demanding saltwater and freshwater environments where standard belts fail prematurely. Built to Jones Racing Products' exacting standards, the 680-30 HD serves weekend anglers, tournament fishermen, and commercial marine operators who demand consistent performance without unexpected shutdown.

The 26.772-inch circumference and 30mm width specification fit specific marine engine configurations where precise belt length and width are critical to proper pulley alignment and torque delivery. The 8mm pitch (tooth spacing) ensures positive engagement with matched HTD pulleys, preventing slippage and belt creep that can compromise cooling system efficiency, alternator charging, or raw water pump operation. At 0.25 lbs, the belt weighs minimally while maintaining the tensile strength required for continuous marine duty. HTD belts outperform conventional V-belts in corrosive salt air and high-humidity conditions because their positive tooth profile resists the stretching, glazing, and deterioration that weakens standard rubber over time.

This belt is essential when replacing worn auxiliary drive belts on marine inboard engines, outboards with external serpentine systems, and diesel marine power plants. Engine builders, marine mechanics, and boat owners performing preventative maintenance choose HTD replacements to eliminate mid-season belt failure. Verify pulley compatibility and belt length against your engine's technical documentation before ordering—the 680-30 HD is a direct fit for specific applications and is not interchangeable with standard V-belt sizes.

Jones Racing Products manufactures racing and high-performance belts to ISO and automotive timing standards, ensuring consistent tooth profile and durable elastomer compounds across batches. The 680-30 HD represents proven OEM and aftermarket upgrade quality for boaters who prioritize reliability over budget alternatives.