GM Gen3 LS1 OEM Water Pump Natural Cast Pulley and Gaskets Included

GM Gen3 LS1 OEM Water Pump with Natural Cast Pulley and Gaskets Included

Upgrade your 1997–2003 GM LS1 5.7L Gen III engine with a high‑performance, OEM‑style water pump designed for street use. This Aeroflow GM LS cast aluminum pump pairs OEM accessory compatibility with enhanced cooling efficiency, delivering reliability under everyday driving and spirited driving alike. The package includes a natural cast pulley and gaskets, so you have everything you need for a straightforward swap.

• Lightweight cast aluminum body for weight savings, improved durability, and better cooling potential.
• Precision cast‑iron impeller design paired with pressure‑balanced water passages to equalize flow and minimize engine hot spots at any speed.
• Impeller geometry helps limit high‑RPM cavitation, reducing the risk of cracking, corrosion, or fatigue over time.
• Fully compatible with OEM accessories and pulleys, ensuring a seamless fit with your existing belt drive system.
• Suits GM LS Series engines from 1997 to 2003 (Gen III, 5.7L LS1).
• Includes natural cast pulley and gaskets for a complete installation.

Ideal for street-performance LS1 builds that demand dependable cooling, reduced hot spots, and a durable, components‑friendly upgrade. This pump delivers a balanced combination of lightweight construction, robust impeller design, and OEM‑friendly compatibility to keep your LS1 running cool and efficient.