SKU: AFS21109
UPC: 684980002713
MPN: 21109
The Cog Belt Pulley - 28 Tooth from Aeromotive is a precision-engineered HTD belt drive component designed for high-performance fuel system applications. Built for users who demand reliable, consistent fuel delivery in competition and street-driven vehicles, this aluminum pulley transfers rotational force from an engine-driven belt to Aeromotive fuel pump assemblies. The 28-tooth configuration provides optimal gear reduction and pump speed management, ensuring proper fuel pressure regulation across varying engine loads and RPM ranges.
Manufactured from aluminum in a natural finish, the Cog Belt Pulley - 28 Tooth features HTD (High Torque Drive) tooth geometry that grips 3/8-inch pitch belts with precision engagement and minimal slippage. HTD design distributes load more evenly across the belt profile than traditional V-belt systems, reducing wear and extending component lifespan in demanding fuel system environments. The 28-tooth count is calibrated to work with Aeromotive's pump curve specifications, delivering the correct displacement volume and pressure output required for EFI tuning and carbureted applications alike. This pulley's compact footprint—5.5 x 2.7 x 5.7 inches—integrates seamlessly into tight engine bay layouts without sacrificing mechanical advantage.
Racers, engine builders, and fuel system installers benefit most from this component when upgrading to Aeromotive belt-driven pump kits or replacing worn pulleys in existing systems. Installation requires a compatible HTD belt (3/8-inch pitch) and proper tensioning to prevent belt slip and ensure repeatable fuel delivery. This pulley is sold individually and pairs with Aeromotive fuel pump assemblies to form a complete, efficient fuel delivery solution for carbureted hot rods, EFI conversions, and naturally aspirated or forced-induction engines requiring 100+ GPH capacity. Always verify pulley tooth count and belt pitch compatibility with your specific pump model before ordering.
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