Radiator and Cooling Fan for Chevrolet S-10 (1996-2004) 4.3L

High-Efficiency 4-Row Radiator Cooling Fan Kit for 1996-2004 Chevrolet S-10

What it Does: The 4-Row Radiator Cooling Fan Kit replaces the restrictive factory cooling assembly on the 1996-2004 Chevrolet S-10 to maximize heat dissipation, eliminate thermal throttling, and maintain stable coolant temperatures under load.

The Stock Chevrolet S-10 Thermal Heat Soak Problem

Factory cooling systems on the second-generation GMT325 platform utilize thin cores and crimped plastic end tanks that degrade rapidly under continuous thermal cycling. Over years of operation, these plastic reservoirs become brittle, prone to micro-fractures, and vulnerable to seam separation under system pressure. Compounding the issue, the OEM mechanical clutch fan leeches usable crankshaft horsepower, creates parasitic drag, and fails to pull sufficient cubic feet per minute (CFM) at low RPM or during extended idle periods. This results in severe heat soak, elevated transmission fluid temperatures, and chronic overheating when towing or hauling heavy payloads.

The Engineering Solution

This comprehensive cooling package replaces the leak-prone OEM heat exchanger with a high-capacity 4-row crossflow radiator constructed entirely from aerospace-grade aluminum. Featuring 100% precision TIG-welded tanks and a brazed tube-and-fin core, it dramatically increases fluid capacity and external surface area for superior heat transfer. The system integrates an aircraft-grade aluminum shroud paired with dual high-output 12V 80W electric cooling fans. By eliminating the mechanical parasitic drag of the factory clutch assembly, this kit provides on-demand airflow across the entire fin density, preventing hot spots and ensuring the Vortec 4300 L35/LU3 runs at optimal operating temperatures regardless of ambient conditions.

Technical Specifications

Compatibility

• 1996-2004 Chevrolet S-10 (4.3L V6 Vortec 4300)

Frequently Asked Questions

Does this fit the GMT325 S-10?
Yes, this is a direct fit for the 1996-2004 Chevrolet S-10 equipped with the Vortec 4300 L35/LU3 4.3L V6 engine.

Does this kit eliminate the stock mechanical fan clutch?
Yes, the integrated dual 12V electric fans and aluminum shroud fully replace the OEM clutch-driven fan, freeing up rotational horsepower.

The Chevrolet Durability Standard

Built for the rugged demands of midsize work trucks, this all-aluminum cooling system provides the structural integrity and high-volume thermal rejection required for demanding towing, heavy hauling, and high-ambient duty cycles without risking catastrophic tank failure.