Sale

Heating and Cooling Radiators

DeWitts

Direct-Fit Aluminum Radiator w/ Trans Oil Cooler

$989.99 $939.99 Save $50.00

SKU: 1139105A

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In Stock
Ships by Aug 4
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The DeWitts 1139105A is a direct-fit Pro Series aluminum radiator engineered for 2005-2013 Chevrolet Corvettes, specifically for all Z06 models (except 2012 with Z07 option), all automatic transmission models, and all dry sump engine models (Grand Sport, Z06, ZR1). This radiator significantly enhances cooling performance with its double core design featuring dual 1-inch-wide core tubes, effectively doubling the cooling capacity of a factory single-row radiator. The core thickness is 2.25 inches, increasing coolant capacity by approximately one gallon without causing fitment issues. Serpentine cooling fins are utilized to optimize airflow across the core tubes for superior heat dissipation. The construction eliminates plastic end tanks and rubber gaskets, employing press-formed aluminum end tanks that are TIG welded to the core for enhanced durability and resistance to leaks and vibrations. It includes a built-in 7-plate transmission oil cooler and features factory-style quick-connect fittings for automatic transmission cooler equipped models. It utilizes 1.38-inch factory-sized cooling hose inlet and outlet connections, allowing the use of stock hoses, fan shroud, and other components. Radiators are 100 percent manufactured in the U.S.A. and come with a lifetime warranty. An optional 11-inch dual electric cooling fan package with 2,780 cfm airflow is available separately.

MIA's Description

The DeWitts 1139105A is a direct-fit aluminum radiator designed for 2005-2013 Corvettes.

This radiator features a double core with two 1-inch tubes for maximum cooling capacity, increasing coolant capacity by one gallon. It is constructed with press-formed end tanks fully welded to the core, eliminating the plastic tanks and rubber gaskets found in stock radiators. The unit includes a built-in 7-plate transmission oil cooler and uses factory-sized inlet and outlet connections.

Fitment

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Specifications

BrandDeWitts
Part Number1139105A
CategoryHeating and Cooling

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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