Warranty & Shipping
Product Reviews
Vehicle Fit

This replacement radiator is just what you need to get your car in working order again.


  • 1 Row Radiator:
    • Core Size: 15" X 30-1/2" X 5/8"
    • Inlet Header: 2-7/16" X 16-9/16"
    • Outlet Header: 2-7/16" X 16-9/16"
    • Inlet: 1-1/4"
    • Outlet: 1-1/4"
    • Transmission Oil Cooler: 11-1/2" (3-Plates)
    • Engine Oil Cooler: No
  • Direct replacement
  • Built to strict quality control specifications
  • Engineered for optimum heat-transfer performance and fit
  • 100% tested prior to leaving factory
  • Proper fittings for transmission lines
  • Plastic Tanks with Aluminum Core


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.

5.00/ 5.0
5 reviews
5 Stars
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1 Star
You got it RIGHT
I ordered a radiator and elec. fuel pump for my 03 Chevy Impala. Both parts came quicker than expected and were correct exact replacementsame. They both are working GREAT! Imiss VERY satisfied with my first dealings with 1A Auto.
January 28, 2017
Very reasonable price for a brand new radiator. Very satisfied with my purchase.
June 29, 2017
Good product at good price!
Good product at good price. Had radiator in 2 days. Thanks. Have bought parts from you before and will continue to buy parts from you in the future.
August 16, 2017
Put it in so far no problems, Good quality for the price. Perfect fit. I recommend this product.
October 22, 2018
Perfect fit
Great price and great fit! Saved $$$ with 1A Auto. Time will tell concerning longevity, but looks like a quality part. Would recommend this part and easy to install especially with the great how to videos from 1A Auto!
December 5, 2018
Will this fit my car? Add a vehicle to make sure
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Year Make Model Description
2000-2005Buick Century Buick Century Radiator V6 3.1L (8th Vin Digit J)
2000-2004Buick Regal Buick Regal Radiator V6 3.8L (8th Vin Digit K)
2000-2003Chevy Impala Chevy Impala Radiator V6 3.8L for Models with with 5/8 Inch Thick Core
2000Chevy Impala Chevy Impala Radiator V6 3.4L
2001Chevy Impala Chevy Impala Radiator V6 3.4L for Models with with 5/8 Inch Thick Core
2002-2003Chevy Impala Chevy Impala Radiator V6 3.4L
2000-2003Chevy Monte Carlo Chevy Monte Carlo Radiator
Part #: 1ARAD00851

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout