2001-05 Chevy GMC Radiator - 1ARAD00914

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Warranty & Shipping
Product Reviews
Vehicle Fit


  • Direct replacement
  • Plastic tanks with aluminum core
  • Dimensions:
    • Height: 34 1/16"
    • Width: 19 11/16"
    • Thickness: 2 3/16"
  • Built to strict quality control specifications


Radiators may incur bent cooling fins or small imperfections during shipping or manufacturing. A few bent fins or small dents and scratches do not affect the fit or the function of the part. Neither our 60 Day satisfaction guarantee, nor the manufacturer's warranty, cover these types of insignificant damages.

Transmission Cooler Note:

Some radiators are designed to be used on both automatic and manual transmission applications. These radiator may have fittings for an automatic transmission fluid cooler. However these radiators can be used on manual transmission models without issue and require no additional parts or modifications.

Direct Fit Replacement

Core thickness equal to the OE part.  If radiator core is slightly thinner than the OEM, this can decrease overall performance and lifespan.

Premium Aluminum Core

Engineered for top performance.  Provides efficient cooling and heat-transfer.

100% Leak Tested

Built to strict quality control standards.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

4.50/ 5.0
4 reviews
5 Stars
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1 Star
Ordered radiator for my Chevy duramax, radiator came as advertised and on time. No problems with order whatsoever. Would highly recommend 1aauto.
January 1, 2018
We received the radiator in record time compared to rockauto with no damage! Get job guys!!
November 20, 2018
Perfect fit, fast delivery, exactly as described, I would definitely buy from 1a auto again
January 1, 2019
The price wasn’t bad, but when I got it the quality and condition wasn’t that desirable. It fit in the truck and does it’s job, so far, without any issues. Time will tell though.
March 31, 2019
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Hi, Is this a single core or a 2 core radiator? Thanks, Brian S.
BRIAN S July 4, 2019
This radiator will be a 2 row.
Corey M July 6, 2019
Year Make Model Description
2001-2005Chevy Silverado 2500 HD Chevy Silverado 2500 HD Radiator V8 6.6L Turbo Diesel
2001-2005Chevy Silverado 3500 Chevy Silverado 3500 Radiator V8 6.6L Turbo Diesel
2001-2005GMC Sierra 2500 HD GMC Sierra 2500 HD Radiator V8 6.6L Turbo Diesel
2001-2005GMC Sierra 3500 GMC Sierra 3500 Radiator V8 6.6L Turbo Diesel
Part 1ARAD00914
In Stock

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout