Electric Water Pump GM LS

The Electric Water Pump GM LS by AEROMOTIVE is engineered for high-performance LS-series engine builds that demand reliable, efficient coolant circulation without parasitic drag from mechanical belt-driven systems. This electric pump is ideal for custom engine swaps, track-focused builds, and street performance applications where independent water pump control delivers superior thermal management and fuel economy benefits. By eliminating engine-driven pump losses, builders can optimize horsepower while maintaining precise coolant flow rates under all operating conditions.

This AEROMOTIVE unit features a robust aluminum construction with black anodized finish for corrosion resistance and durability in demanding environments. The pump delivers a consistent 40 GPM flow rate and mounts directly to GM LS-series engine blocks via factory block-mount provisions. Inlet and outlet connections utilize female O-ring fittings—1-1/2 inch on the inlet and 1-1/4 inch on the outlet—ensuring secure, leak-free hose coupling without additional adapters. The compact 8.5 x 8.25 x 10.75-inch footprint and lightweight 9.65-pound design minimize installation complexity and weight penalty, making it compatible with space-constrained engine bays and weight-sensitive platforms.

Serious engine builders, fabricators, and LS swap enthusiasts benefit most from this electric water pump solution, particularly those prioritizing thermal efficiency and engine bay integration. Installation requires basic plumbing, electrical connections, and consideration of pump controller and relay circuits for safe operation. The block-mount design ensures OEM-quality fitment and repeatability across multiple builds, making it the preferred choice for both single-vehicle projects and professional shop applications supporting GM LS powerplants in street, strip, and circuit racing formats.