Performance Radiator for Jeep Wrangler JK (2007-2017) 3.6L 3.8L
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High-Capacity Aluminum Radiator for 2007-2017 Jeep Wrangler
Direct replacement all-aluminum radiator and high-flow fan shroud combo engineered to maximize heat dissipation and prevent coolant boiling during low-speed off-road articulation.
The Stock Wrangler Thermal Weakness
The OEM Jeep Wrangler JK radiator utilizes a crimped plastic-tank-to-aluminum-core design that becomes highly susceptible to micro-fractures and seam separation under consistent heat cycling and off-road chassis flex. When operating at low speeds on demanding trails, the lack of ram air causes the factory system to heat soak, leading to elevated coolant temperatures and diminished thermal efficiency. This inefficiency forces the 3.8L EGH or 3.6L Pentastar ECU to pull timing, robbing the engine of low-end torque when you need it most while risking overheating under heavy loads.
The Engineering Solution
This heavy-duty cooling package replaces the restrictive factory unit with a 100% TIG-welded, full all-aluminum construction, completely eliminating the failure-prone plastic end tanks. The high-capacity 1-row racing spec core increases fluid volume and surface area, improving overall cooling efficiency by 35% to 45% over stock units. To aggressively address low-speed airflow deficits, the system integrates a custom slim aluminum shroud paired with a 16-inch, 120-watt 10-blade electronic cooling fan. Pulling 1000 CFM at 2,250 RPM with a low 11-amp draw, this active forced-induction airflow ensures optimal thermal transfer during idle or low-speed rock crawling. The slim 3.27-inch fan thickness preserves critical engine bay clearance for auxiliary belts and aftermarket components.
Technical Specifications
| Fitment | 2007-2018 Jeep Wrangler JK |
| Engine / Chassis | 3.8L EGH, 3.6L Pentastar / JK |
| Stock Output | 202-285 hp / 237-260 lb-ft (Approx) |
| Part Number | 68143886AA, 68049405AA, 55056633AA, 55056634AB, 55056633AB, 3400081, 61037, 332541, 2957, CU2957, RAD2957, Q2957 |
Compatibility
- 2007-2011 Jeep Wrangler Unlimited Sport Rubicon 3.8L V6
- 2012-2017 Jeep Wrangler Unlimited Sport Rubicon 3.6L V6
- 2018 Jeep Wrangler JK Unlimited Sport Rubicon 3.6L V6
The Jeep Durability Standard
Engineered to withstand harsh vibrations and extreme articulation, this heavy-duty thermal upgrade guarantees reliable temperature management and fluid retention during rigorous trail crawling, heavy towing, and demanding overlanding expeditions.
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