My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Keystone GM3010242 OEM Replacement Radiator for C/K 2500 3500 7.4L V8 Short Neck

Manufacturer

Part Number

GM3010242
Sale Price

$220.91

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Keystone GM3010242 is a direct-fit OEM replacement radiator engineered for Chevrolet and GMC C/K 2500 and 3500 series pickups equipped with the 7.4L V8 engine. Designed to restore proper engine cooling with a confirmed short (standard) filler neck configuration, this radiator installs without modification for a clean, factory-correct repair.

Key Features:

  • Core dimensions: 34 x 19 inches (short neck style) — matches OEM fitment exactly
  • Crossflow design with top hose inlet on the driver side and bottom hose outlet on the passenger side
  • Integrated transmission oil cooler (TOC) and engine oil cooler (EOC) ports
  • OEM-style plastic end tanks with aluminum core for stock cooling performance
  • Inlet diameter: 1-5/16 inches; Outlet diameter: 1-9/16 inches
  • Saddle mount configuration for direct bolt-in installation
  • Sold as a complete assembly

OEM & Cross-Reference Part Numbers:

  • GM/Chevrolet OEM: 52491621
  • Partslink: GM3010242
  • Spectra Premium: CU1218, CU1696
  • ACDelco: 20910, 21371
  • DPI: 1218, 1696

This radiator is the correct cooling system replacement for C/K 2500 and 3500 trucks with the 454 cubic inch (7.4L) V8 engine and without a raised filler neck. It is compatible with vehicles equipped with air conditioning and automatic or manual transmissions.

Great job

Thank you

Shipping was fast and efficient! Very happy that the fuel pump I ordered was available and arrived in perfect condition. This was a quality fuel pump that was difficult to find and was very pleased with the procurement of my order. I will use THMotorsports again! Thank you.

So far, so good....

wonderful product

One to add

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy