Transmission Cooler Recommendation for a 2005 Hummer H2

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Question:

I have a 2005 Hummer H2 and am looking to replace the OEM transmission cooler. I have read a few forums and others have found success with a brand you dont carry, measuring 10x15.5x3/4. I have always been happy with purchases from your company and want to continue that relationship. What is the best/largest Class IV you recommend that would fit my vehicle without much modification? Any additional parts I would need? I have the 6.0L V8. Thanks!

asked by: Ron D

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Expert Reply:

The most efficient transmission cooler we offer that is a Class IV would be the Derale 16-Row, High-Performance, Stacked-Plate Cooler # D51608. The dimensions of this cooler are 13 inches wide x 6-9/16 inches tall x 2 inches deep. You will need to measure the room you have in front of your radiator, but most likely this would work for you.

You will also need a few adapters. It is hard to say for certain what lines you do have, but you will need a Derale Snap-In Radiator Adapter Fitting for GM # D13035. And a couple Derale -8 AN Female Swivel # D98202.

I attached a couple FAQs on transmission coolers and an installation video of one for you to check out also.

expert reply by: Jameson C

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Answer 1

We do have several transmission coolers that use NPT 1/2 inch fittings though the hose size may be different. It is the inner diameter that you would need to know. The 1/2 inch NPT cooler use a 3/8 inch inner diameter hose. Since transmission fluid…

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Answer 2

This Derale Radiator Adapter Fittings for Ford, Lincoln and Mercury, #D13025, the male threaded end of the fitting goes into your vehicle's radiator and is a thread perfect fit so there is no leaking. The female end of the adapter attaches to the…

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Answer 3

You are correct. Fitting #D13025 threads into the radiator on your 2011 Lincoln Navigator so you will not have to cut or flare the metal lines to install a supplemental cooler. A cooler such as #D13503 includes the hose, clamps, and hardware to mount…

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Answer 4

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 5

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 6

Yes, I have listed for your below the roof rack systems from Rhino-Rack, Thule, and Yakima that will fit the RetraxPRO XR Hard Tonneau Covers like part #RTT-80243 for your 2019 Ram 1500. Rhino-Rack Vortex Crossbar System part #RRVA180B-RRRLT600…

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Answer 7

What we have is the FC60-1205000UX which is the same as the #BRW77FR. This will work with your Optima AGM blue top battery. From what I found, the FC60-1205000UT shares the exact same specs it just has a slightly different design so it should work…

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Transmission Cooler Recommendation for a 2005 Hummer H2

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