Dbl Grv Pulley

The MOROSO Double Groove Pulley (MPN 64210) is a precision-engineered serpentine pulley designed for high-performance engine builds and street/strip applications where reliable accessory drive management is critical. This component serves as the foundation of your engine's belt system, distributing rotational loads across multiple grooves to ensure consistent power delivery to alternators, water pumps, and air conditioning compressors.

The dual-groove configuration distributes mechanical stress more evenly than single-groove alternatives, reducing harmonic vibration and extending belt life—a key advantage when running higher engine speeds or aggressive power levels. Finished to exacting standards, this pulley weighs just 1.89 pounds, making it an ideal choice for both street and competition engines where weight savings and reliability go hand in hand.

The compact 7.45 x 3.25 x 8.75-inch envelope ensures straightforward installation in tight engine bays without modification to existing brackets or accessory mounts. Whether you're building a carbureted muscle car or upgrading an existing engine package, this quality double groove pulley eliminates slippage and maintains proper belt tension under varying load conditions.