Aluminum Radiator with Shroud for Hummer H1 (1992-2001) 5.7L 6.2L 6.5L
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Heavy-Duty Aluminum Radiator with Shroud for 1992-2001 Hummer H1
Primary Function: Directly replaces the thermal-limited factory cooling stack with a high-capacity 3-row aluminum core and electric fan kit to suppress coolant temp spikes under sustained load.
The Stock H1 Thermal Bottleneck
The Hummer H1 operates in an exceptionally tight, rear-slanted engine bay where airflow dynamics are severely constrained. Factory multi-piece copper-brass or crimped-tank radiators are prone to seam fatigue, core tube scaling, and mechanical fan clutch slippage at low trail speeds. Compounding this, the heavy curb weight paired with Detroit Diesel or small-block power plants demands massive thermal rejection. Stock units regularly suffer from heat soak during extended high-load pulling or low-speed rock crawling, risking cylinder head distortion and transmission fluid overheating.
The Engineering Solution
Engineered to resolve acute thermal saturation, this all-aluminum cooling assembly features a brazed 3-row tube-and-fin core welded directly to reinforced aluminum end tanks via precision TIG seams, completely eliminating failure-prone crimped gaskets. Paired with a fitted aluminum shroud and electric fan setup, the unit establishes constant negative static pressure across the entire fin surface regardless of engine RPM. The inclusion of dedicated electric wiring and high-flow plumbing delivers maximum heat dissipation, lowering operating temperatures and protecting internal drivetrain seals under extreme thermal stress.
Technical Specifications
| Fitment | 1992-2001 Hummer H1 |
| Engine / Chassis | GM L05, Detroit Diesel 6.2L/6.5L / M998 Platform |
| Stock Output | 150-195 hp / 250-430 lb-ft (Approx) |
| Part Number | N/A |
Compatibility
- 1992-1993 Hummer H1 6.2L Detroit Diesel V8
- 1994-2001 Hummer H1 6.5L Detroit Diesel V8 (Naturally Aspirated & Turbocharged)
- 1995-1996 Hummer H1 5.7L GM Small-Block L05 V8
The Hummer Durability Standard
Built to withstand extreme off-road terrain, high-torque utility hauling, and deep thermal cycling, this heavy-duty cooling assembly provides the mechanical endurance required for heavy-chassis overland and fleet duty.
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