2003-2009 Hummer H2 Towing Capacities

I have always thought of the Hummer H2's as a pretty cool ride with a sort of apocolyptic feel to it, but when I was looking through some of the statistical information, I noticed that they also had a pretty decent towing capacity attached to them. I started looking through the information and posted my findings in this post. Enjoy!

Overview of the Data For the H2's:

Engine Choices: There were not many engine choices for these vehicles between '03 and '09, two in fact: the 6.2L engine and the 6000 V8 engine. The engine equipped made a huge difference in the capacity numbers when you compare the two, having a difference of 1,600-1,700 pounds!

The 6.2L engine was used for the '08 and '09 model years and had the higher 8,200 pound rating. The '03-'07 model years used the 6000 V8 engine that had the lower 6,600-,6700 pound capacity.

Towing Capacity: The towing capacity for the Hummer H2 ranged from 6,600-8,200 lbs. and for the most part, stayed the same for most of its life ('03-'07) hovering at around 6,600-6,700 pounds for 2003-2007 models and then in 2008 and 2009, it had an increase in capacity to 8,200 pounds, due to the new 6.2L engines that were used instead.

Some of the specs  were identical, so I only listed the one towing chart for more than one model year, but the specs were the same for the listed model years.

Be sure to read through the owner's manual for your H2 to make sure you have all of the tow related information you need. There are other important elements regarding break in period, air ride system info and other topics that you need to know about.

2008 & 2009 Models:

The 2008 and 2009 Hummer H2 had a towing capacity of 8,200 lbs. and both came with a 6.2L engine, according to the owner's manuals, which was the highest ratings for all model years.

The GCWR for these vehicles was around 15,000 pounds and the gear ratio was 3.73 for all models, according to the chart below.

Looking at the chart, you can see that there were two different models available and these were the SUT and SUV models, but both had the same specs.

2008 and 2009 Hummer H2 Towing Chart

2008 and 2009 Hummer H2 Tow Chart

2009 Hummer H2 Tongue Weight Ratings

2008 & 2009 Tongue Weight Ratings

2006 & 2007 Models:

The 2006 and 2007 models had a significantly lower maximum trailer weight rating listed than the 2008 and 2009 models, differing by 1,600-1,700 pounds.

The 2006 and 2007 H2 had a towing capacity of 6,600-6,700 lbs., depending on the model you had (SUV or SUT).

I am not sure why the SUT had a 100 pound lower capacity than the SUV model, as shown in the chart below but it didn't make a huge difference in the numbers as both models seemed to use the same engine and axle ratios and even had the same GCWR.

2006 and 2007 Hummer H2 Towing Chart

2006 and 2007 Hummer H2 Tow Chart

2007 Hummer H2 Tongue Weight Ratings

2006 & 2007 Tongue Weight Ratings

2003-2005 Models:

The 2005, 2004 and 2003 Hummer H2 had a towing capacity of 6,700 lbs. in the chart I found, and that was the set rating with no range.

All three model years ('03-'05) used the same engine, the 6000 V8, and everything else was nearly identical with the exception of the '03 models having a 500 pound less GCWR compared to the '04 and '05 model years.

The 6000 V8 engine that was used for the '03-'05 model years was the same engine used for the '06 and '07 models, but there was not any signifying data that showed a difference in the capacity numbers between the SUV and SUT models like we saw in the '06-'07 charts.

2005 Hummer H2 Towing Chart

2004 & 2005 Hummer H2 Towing Chart

2003 Hummer H2 Towing Chart

2003 Hummer H2 Towing Chart

2007 Hummer H2 Tongue Weight Ratings

2004 & 2005 Tongue Weight Ratings

2003 Hummer H2 Tongue Weight Ratings

2003 Tongue Weight Ratings

SUV And SUT Models:

In a couple of the tow charts, there was reference to SUV and SUT models that some people may not be familiar with and I thought I would briefly explain what the differences are in appearance alone, not all of the specifics...

Hummer H2 Suv

SUV Models

The SUV model is designed to look like an SUV with a fully enclosed cab area for passengers and cargo.

Hummer H2 Sut

SUT Models

The SUT models have the four doors like the SUV model, but an open "truck bed area" in the rear.

Resources I Used for This Article:

I used the owner's manuals to gather all of the data as far as tow related information goes and is where I found the charts as well. There is other helpful info I found in the owner's manuals that I suggest everyone read to get a better idea of all of the tow specs and limitations that GM recommends for these vehicles.

Last updated on June 4th, 2022 at 10:09 pm

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