Pulley - Power Steering Pump GM LS

The Holley Power Steering Pump Pulley for GM LS-Series engines is a precision-engineered component designed for builders and enthusiasts upgrading their LS powerplants with modern steering systems. This pulley interfaces directly with the power steering pump drive belt, transferring rotational energy from the engine's serpentine belt to pressurize your hydraulic steering system. Whether you're building a restomod, swapping an LS into a classic platform, or upgrading your modern muscle car, a properly matched pulley ensures reliable steering assist without belt slip, vibration, or premature wear.

Manufactured by Holley, a leader in automotive performance systems, this pulley is engineered to OEM specifications for LS-series compatibility, ensuring correct belt wrap and load distribution. The precise diameter and profile are critical—incorrect pulley sizing causes steering lag, belt chirp, or inadequate pump flow under high-demand conditions like tight parking or aggressive track work. At 1.78 lbs and measuring 8.2 x 1.4 x 9.4 inches, this is a compact, lightweight component that bolts directly to your pump shaft. The Holley design accounts for LS engine accessory mounting variations, making integration straightforward across different block generations.

LS engine swappers and performance builders rely on Holley's pulley systems to maintain factory-grade steering feel in custom applications where original components don't fit or aren't available. Upgrading or replacing a worn steering pump pulley during a larger serpentine belt service prevents downtime and extends the life of your power steering pump and alternator. Installation pairs with a matched serpentine belt—verify your pulley diameter against your belt specification and other engine accessories (water pump, alternator, air conditioning compressor) to ensure proper routing and tension. This Holley pulley (MPN 97-152) is the go-to choice for LS builders prioritizing reliability and correct steering response.