Performance Radiator for GMC Sonoma (1994-2003) 2.2L

Heavy-Duty 3-Row Aluminum Performance Radiator for 1994-2003 GMC Sonoma

What it Does: Directly replaces the crack-prone factory radiator to maximize coolant capacity and stabilize engine operating temperatures under sustained thermal loads.

The Stock Sonoma Cooling Deficiencies

The factory cooling assembly on second-generation S-Series trucks relies on single-row aluminum cores crimped to composite plastic end tanks. Over repeated thermal cycles, the plastic tanks embrittle, leading to micro-fractures along the end tank seams and transmission cooler fittings. Furthermore, the limited single-row surface area struggles with heat dissipation during continuous hauling or extended idling, causing severe heat soak and elevated coolant temperatures in the 2.2L pushrod engine.

The Engineering Solution

Engineered to eliminate factory failure points, this direct-fit unit features an all-aluminum 3-row crossflow core fully TIG-welded to hand-fabricated aluminum end tanks. The multi-core configuration increases fin-to-tube contact area and fluid volume, significantly accelerating heat dissipation over OEM specifications. Built-in integrated transmission oil cooler lines ensure stable automatic transmission fluid temperatures, while the structural 100% aluminum construction eliminates adhesive and gasket degradation.

Technical Specifications

Compatibility

• 1994-2003 GMC Sonoma Base 2.2L L4 Automatic
• 1994-2003 GMC Sonoma SL 2.2L L4 Automatic
• 1994-2003 GMC Sonoma SLS 2.2L L4 Automatic

The GMC Workhorse Standard

Built for daily utility and extended hauling duty, this all-aluminum replacement provides the structural rigidity and thermal margin required to prevent cooling-related downtime in fleet or daily service.