1988-1993 Chevy C1500/K1500/Suburban LS and LT Radiator with 34-Inch Core and Fans
Installing an LS or LT powerplant in a GMT400 C/K Series truck can expose the limits of factory cooling when towing or idling. This direct-fit radiator for 1988 to 1993 C1500, K1500, and Suburban models features a 34 inch full width aluminum core and twin electric fans to keep both engine and transmission temperatures in check. Engineered with TIG welded aluminum tanks treated against corrosion and configured to use existing GMT400 mount points, it preserves engine bay clearance while adding thermal capacity. By engaging fans only when coolant or transmission fluid reaches its threshold, the design reduces unnecessary electrical draw and sustains consistent airflow under heavy towing or stop and go driving.
34 Inch Full Width Core for Rapid Heat Rejection
The 34 inch full width aluminum core offers an expanded surface area that accelerates the transfer of heat from coolant to air. Aluminum is chosen for its excellent thermal conductivity which helps distribute warmth evenly and prevents hot spots during heavy towing or steep climbs. By retaining GMT400 factory mount geometry it fits precisely without modifying engine bay structure. This design helps maintain stable engine temperatures under sustained load and protects critical components from heat stress.
Dual Electric Fans for Consistent Low Speed Airflow
Two high capacity electric fans are calibrated to activate when coolant or transmission fluid reaches preset thresholds at low vehicle speeds. This targeted engagement maintains steady airflow in gridlock or during towing without drawing excessive current. Integration with the existing wiring harness simplifies installation and ensures the fans only run when needed, safeguarding both engine and transmission from overheating under demanding conditions.
Robust TIG Welded Aluminum Construction
Every joint between the core and tanks is formed using TIG welding, creating strong uninterrupted seams free from filler irregularities. This all aluminum assembly withstands engine vibration and road shock far better than designs with plastic end tanks. It also simplifies leak inspection and repair while reducing the total number of components. The result is a radiator that delivers unwavering durability and alignment under torque loads.
Tailored Coating Options for Corrosion Resistance
Customers can choose between a raw aluminum finish that forms a protective oxide layer and a black epoxy coat that offers enhanced barrier protection against moisture and road debris. Both options are applied under strict quality control to ensure uniform coverage without impairing thermal efficiency. These coatings not only extend service life in harsh climates but also allow for seamless matching with engine bay aesthetics.
To complete your setup with the same radiator but without fans consider our 1988-1993 LS Radiator 34" Core Width (Automatic Transmission) and trust MuscleRods for reliable cooling performance.