Performance Radiator for Jeep Grand Cherokee (2005-2010) 3.7L 4.7L 6.1L Automatic

$229.95

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Heavy-Duty All-Aluminum Performance Radiator for 2005-2010 Jeep Grand Cherokee

Direct-fit cooling upgrade: Replaces failure-prone factory plastic-tank units with an all-aluminum, dual-row heat exchanger designed to stabilize engine operating temperatures under heavy towing, trail crawling, and high-load driving conditions.

The Stock Grand Cherokee WK Thermal Deficiencies

Factory WK radiators rely on crimped plastic end tanks bonded to a single-row core. Over repeated thermal cycles, pressurized coolant exposure and engine vibration degrade the composite plastic, causing embrittlement, micro-cracking, and seal blowouts along the crimp seams. Furthermore, restricted fluid capacity in the OEM core leads to rapid heat soak during low-speed rock crawling or sustained uphill towing, pushing 3.7L, 4.7L, and high-output 6.1L SRT engines toward thermal limits.

The Engineering Solution

Constructed from aircraft-grade AA5052 aluminum, this radiator features 100% TIG-welded end tanks to eliminate mechanical crimps and plastic failure points. The 2-row, 1.6-inch thick core optimizes fluid capacity and heat transfer surface area via high-efficiency louvered fins. Built specifically for automatic configurations, it includes internal transmission cooling provisions, a precision brass petcock drain, and OE mounting points for seamless installation.

Technical Specifications

Fitment	2005-2010 Jeep Grand Cherokee
Engine / Chassis	3.7L PowerTech, 4.7L PowerTech, 6.1L HEMI / WK Chassis
Stock Output	210–420 hp / 235–420 lb-ft (Approx)
Part Number	DPI 2839, CU 2839, 8012839, 3292, 2999, 55116849AC

Compatibility

2005-2010 Jeep Grand Cherokee (WK) 3.7L V6 Automatic
2005-2009 Jeep Grand Cherokee (WK) 4.7L V8 Automatic
2006-2010 Jeep Grand Cherokee (WK) SRT8 6.1L HEMI V8 Automatic
2007-2010 Jeep Grand Cherokee (WK) 3.0L V6 Turbo Diesel Automatic
Fitment Note: Does NOT fit 5.7L Hemi models (different radiator core).
Chassis Note: Does NOT fit 1999-2004 WJ models.

The Jeep Durability Standard

Engineered to withstand chassis flex during extreme off-camber articulation and high-strain towing, this reinforced all-aluminum unit provides sustained thermal control and structural integrity across demanding trail and highway conditions.

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