HTD Belt 28.976in Long 20mm Wide

The HTD Belt 28.976in Long 20mm Wide from Jones Racing Products is a precision synchronous drive belt engineered for marine engine cooling systems, alternators, and water pump applications where reliable power transmission is non-negotiable. Built for boaters, mechanics, and engine rebuilders who demand OEM-quality replacements, this belt transfers engine rotational force to critical accessories with zero slippage under load. Whether you're running a freshwater cruiser or a saltwater fishing platform, a failing serpentine belt can leave you stranded—this HTD design eliminates that risk.

This HTD synchronous belt features an 8mm pitch tooth profile that meshes precisely with matching pulleys to eliminate the belt slip that plagues older V-belt designs. The 20mm width distributes load across a wider contact surface, reducing stress concentration and extending service life in high-heat engine bays. Constructed from reinforced synthetic rubber compounded to resist saltwater spray, UV exposure, and thermal cycling, the belt maintains flexibility at 32°F winter startups while resisting degradation in 140°F-plus summer conditions. The exact 28.976-inch circumference ensures proper tension and fit when installed on compatible marine engine platforms.

Marine technicians and weekend anglers alike appreciate this belt's plug-and-play compatibility with Jones Racing Products pulley systems and OEM-equivalent serpentine routes. Installation requires no special tools—simply route the belt following your engine block's belt guide, adjust tension to factory spec using a tension gauge, and verify pulley alignment before starting. At 0.21 lbs, the lightweight design minimizes rotational inertia while delivering the torque required to spin alternators at 6,000+ RPM without slip. Stock this replacement now to ensure your charging system, cooling fan, and freshwater pump run at full capacity every time you leave the dock.