Heating and Cooling› Radiators

DeWitts

Standard Single-Row Crossflow Aluminum Radiator

$549.99

SKU: 32-1129090M

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The DeWitts 32-1129090M is a standard single-row, crossflow aluminum radiator designed for 1990-1996 C4 Corvettes with manual transmissions. It features a 1-1/2-inch wide core tube and provides 50% additional cooling surface area and increased coolant capacity over stock.

The radiator is constructed with controlled atmosphere furnace brazed core and TIG welded end tanks, ensuring strength and durability. It is built to fit without modifications to the factory cooling hoses, transmission cooler lines, or fan shroud.
Show original supplier description
The DeWitts 32-1129090M is a direct-fit, single-row aluminum radiator engineered for 1990-1996 C4 Corvettes equipped with manual transmissions. Manufactured in Wixom, Michigan, this radiator utilizes a crossflow design and features a 1-1/2-inch wide core tube, significantly increasing cooling surface area by 50% and boosting coolant capacity over the original equipment. Its construction involves a controlled atmosphere furnace brazed core and TIG welded end tanks, offering superior strength and longevity. This contrasts with radiators using flat plate welded end tanks, which often necessitate vehicle alterations or additional brackets. This radiator also includes a built-in OE-style transmission oil cooler with factory-style 5/16-inch inverted flare fittings for automatic transmission models. While this standard single-row model offers excellent value and performance, DeWitts also offers Pro Series (dual 1-inch core tubes) and LS Swap (dual 1-inch core tubes, double pass) variants for enhanced cooling capabilities. An optional 11-inch dual electric cooling fan package is also available, providing an additional 2,720 cfm of airflow. The radiator comes with a limited lifetime warranty and is pressure tested to ensure quality. Note: Fan is not included. Distilled water and premium antifreeze must be used with all DeWitts aluminum radiators.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDeWitts
Part Number32-1129090M
CategoryHeating and Cooling
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

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.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy