Radiator TRQ

Save 28%
List: $145.95 Save: $41.00
Part 1ARAD00795
In Stock

Orders must be placed by 2pm ET
Delivery options for:

Estimated Arrival Cost

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

Brand #: RDA82619

Frequently bought together

Vehicle Fit
Warranty & Shipping

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


  • 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 (if needed)

This part is built to strict quality control standards. Makes a great replacement and has substantial cost savings over a dealer unit.

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 - www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.


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.

Fits the following Makes:

Year Make Model Description
2004-2007Buick Rainier Buick Rainier L6 4.2L Radiator
2002-2009Chevrolet Trailblazer Chevrolet Trailblazer L6 4.2L Radiator
2002-2006Chevrolet Trailblazer EXT Chevrolet Trailblazer EXT L6 4.2L Radiator
2002-2009GMC Envoy GMC Envoy L6 4.2L Radiator
2002-2006GMC Envoy XL GMC Envoy XL L6 4.2L Radiator
2004-2005GMC Envoy XUV GMC Envoy XUV L6 4.2L Radiator
2003-2008Isuzu Ascender Isuzu Ascender L6 4.2L Radiator
2002-2004Oldsmobile Bravada Olds Bravada L6 4.2L Radiator
2005-2009Saab 9-7X Saab 9-7X L6 4.2L Radiator

Part Interchange

Brand Label Part Number
Buick 15196385
Chevrolet 15196385
DIY Solutions HVA01700
GMC 15196385
Isuzu 8151963850
Isuzu 8-15196-385-0
Oldsmobile 15196385
Partslink GM3010420
Saab 15196385
Saab 15 196 385
Spectra Premium CU2458

This item may be interchangeable with parts from other brands with the above part numbers. This information is provided only for reference and does not guarantee that the item you are purchasing is identical to parts with part numbers from the brands listed above. To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.

Brand #: RDA82619
Product Reviews
4.62/ 5.0 8
8 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Perfect Fit
July 10, 2017
This radiator was a exact fit for my 2002 Trailblazer with an I6. It came with the right fittings attached for the transmission lines. I am an at home DIY'er and recommend the instructional videos as they are very accurate, informative and well put together. Shipping was very prompt. This is not my first transaction with 1AAuto. I am always very pleased with the service and I will definitely be using for my future vehicle needs.
Giving a 2nd chance
August 17, 2017
I purchased a radiator for a 2002 GMC envoy took everything apart put in the new radiator from 1a auto and what do you know the radiator was leaking instantly from the bottom seal of radiator I couldn't believe it I called in to complain but the policy states they cannot give me any type of compensation only my money back or replace it with another radiator I decided to give him a second chance got the new radiator installed it bought new anti-freeze and transmission fluid so far so good . Ainstall that should've Took only a couple hours took over one week
Nick Compton
April 3, 2018
My name is Nick, I bought a radiator from here and it was a great purchase. It delivered very quickly and was very easy to order. I will definitely be ordering from here again.
1a auto
October 19, 2018
My radiator I ordered from 1a auto fit to a T.. I get all my auto parts from 1A Auto because they have great customer service and most items are backed by a lifetime warranty. I have replaced coils,radiator,o2 sensors, camshaft position sensor on my 03 Chevy Trailblazer from 1a auto and probably a lot more just can't name them all as well as my 2000 's 10. Bottom line is for the price and the Value you can't beat 1a auto parts...
October 25, 2019
The radiator worked perfect. I would recommend to anyone
2004 Chevy trailblazer radiator 1arad00795
November 15, 2019
The radiator fit as said. A lot cheaper than local parts stores and free fast shipping was great.
2005 Trailblazer Radiator
December 29, 2019
I purchased the radiator for my Son's 2005 Trailblazer when he advised it was leaking and it didn't look like a hose. We received the radiator 2 days earlier than expected. It arrived in great shape, no noted problems. My Son had brought his Trailblazer in for an oil change and they told him, while changing out his oil they saw the radiator leaking but it turned out to be a hose. They tightened it down and the leak stopped. We are keeping the radiator anyway and plan to install it as a Father/Son project this coming summer.
February 3, 2020
A++ Great product. Timely delivery. BEST price! Thanks
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
I installed the radiator no problems, everything is perfect except for the transmission lines. Fluid is leaking from the transmission lines connecting to the radiator. What is going on here, how do i fix this leak?
April 2, 2018
I had this very same issue. What I found was the radiator did not have the fittings needed to connect to the cooler lines. You need to use the ones from your old one. I think I also used new o-rings.
April 2, 2018
I had the same problem with mine. Did you try to make sure the bolts were tight. Where the transmission lines come to the radiator. That's exactly what mine was leaking.. after I tighten them up it was fine
April 2, 2018
The fittings aren't threaded into the radiator tight. I connected the push in lines and had the same problem, just tighten them where they thread into the radiator
April 2, 2018
Make sure the mushroom clips is positioned correctl on the quick connect. Otherwise, the quick connection is not secure.
April 3, 2018
Install new radiator never had another problem with it
April 3, 2018
Customer service


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Saturday - Sunday 8:00am - 4:30pm ET

Radiator TRQ-1ARAD00795 does not fit your:

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Guaranteed To Fit

Providing you the highest quality, direct fit replacement auto parts enforced to the strictest product standards.

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Instructional Video Library

Thousands of how-to auto repair videos specific to year, make and model guide you step-by-step through your repair.

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