SBC LWP Water Pump Pulley 1 Groove Black

The TRANS-DAPT SBC LWP Water Pump Pulley 1 Groove Black (MPN 8604) is a precision-engineered water pump pulley designed specifically for small block Chevy engines running long-water-pump configurations. This single-groove V-belt pulley serves as the critical interface between your engine's serpentine belt system and the water pump shaft, ensuring reliable coolant circulation under all operating conditions. Whether you're restoring a classic Chevy, upgrading a street rod, or maintaining a performance build, this OEM-quality replacement pulley delivers the reliability and fit that modern engine bays demand.

Manufactured from high-strength steel and finished in black powder coat for corrosion resistance, the SBC LWP pulley features a 6.3-inch diameter optimized for stock and modified small block applications. The single-groove design accommodates standard V-belt configurations found on most carbureted and fuel-injected SBC engines, while the long-water-pump mounting ensures compatibility with both classic and contemporary cooling systems. The black powder-coat finish not only provides aesthetic appeal under the hood but also protects against rust and oxidation, critical for longevity in high-heat engine compartments where coolant temperature swings stress metal components.

Mechanics and enthusiasts installing this pulley should verify long-water-pump fitment before ordering, as SBC configurations vary between short and long pump designs. The 1.4-pound weight and compact 10 x 2.15 x 16.55-inch dimensions ensure hassle-free installation in tight engine bays common to vintage Chevrolet chassis and modern restomod builds. This TRANS-DAPT pulley is an ideal solution for anyone replacing a worn, damaged, or corroded factory pulley while maintaining original or stock-appearing cooling-system aesthetics.