Water Pump Pulley HTD 37 Tooth

The KRC Power Steering Water Pump Pulley HTD 37 Tooth is a precision-engineered replacement component designed for engine cooling system restoration and maintenance. This aluminum pulley features a 37-tooth HTD (High Torque Drive) profile compatible with both 5/8-inch and 3/4-inch shaft diameters, accommodating a wide range of OEM and aftermarket applications. The black anodized finish provides corrosion resistance and durability in high-temperature engine bay environments where standard finishes fail under thermal cycling and moisture exposure.

The 4-bolt mounting pattern delivers secure installation with minimal runout, critical for pulley systems where misalignment leads to belt wear and premature failure. HTD profile teeth ensure positive belt engagement without slipping, maintaining consistent water pump rotation regardless of engine load. At 0.6 pounds, this pulley integrates seamlessly into engine compartments without adding unnecessary mass. The anodized aluminum construction balances strength with thermal conductivity, allowing heat dissipation away from bearing surfaces while resisting corrosion from coolant contact and salt-air exposure in marine or coastal environments.

This component serves rebuilding and restoration applications across marine engines, automotive cooling systems, and industrial pump installations where original equipment pulleys require replacement. Off-road and outdoor enthusiasts working on engine overhauls, marine cooling upgrades, or custom engine builds rely on quality pulleys to ensure reliable water circulation under extended operating conditions. Mechanics and technicians performing preventive maintenance on vehicles subject to saltwater exposure or extreme temperature ranges specify anodized aluminum pulleys for their proven longevity and corrosion resistance.

KRC Power Steering components are engineered to OEM specifications, ensuring direct compatibility with factory cooling system designs. The HTD 37-tooth profile is a standard industrial specification found across multiple engine platforms, making this pulley a versatile replacement option for technicians maintaining equipment fleets or performing engine restoration work where authentic specifications are required.