The Hummer H3 was introduced into Hummer’s lineup as a large SUV in 2003 and remained available through 2009. The H3 was known for its unique styling and for having the features consumers expect from SUVs, including towing. But what is the towing capacity of a Hummer H3?
The Hummer H3 has a towing capacity of up to 6,000 pounds depending on the year, engine, transmission, and body style.
There’s a bit more to know about Hummer H3 towing capabilities which we’ll cover in today’s guide.
2010 Hummer H3 Towing Capacity
A 2010 Hummer H3 can tow between 2,900 lbs and 6,000 lbs depending on the engine and body style.
A 2010 Hummer H3 with 3.7L engine and automatic transmission can pull 4,500 pounds.
A 2010 Hummer H3 with 3.7L engine and manual transmission can pull 3,000 pounds.
A 2010 Hummer H3 with 5.3L engine and automatic transmission can pull 6,000 pounds.
A 2010 Hummer H3T with 3.7L engine and automatic transmission can pull 4,400 pounds.
A 2010 Hummer H3T with 3.7L engine and manual transmission can pull 2,900 pounds.
A 2010 Hummer H3T with 5.3L engine and automatic transmission can pull 5,900 pounds.
| Hummer H3 Trim Level | Towing Capacity | Engine | Transmission |
| H3 (All) | 4,500 lbs / 2,041 kg | 3.7L L5 | Automatic |
| H3 (All) | 3,000 lbs / 1,361 kg | 3.7L L5 | Manual |
| H3 (All) | 6,000 lbs / 2,721 kg | 5.3L V8 | Automatic |
| H3T (All) | 4,400 lbs / 1,996 kg | 3.7L L5 | Automatic |
| H3T (All) | 2,900 lbs / 1,315 kg | 3.7L L5 | Manual |
| H3T (All) | 5,900 lbs / 2,676 kg | 5.3L V8 | Automatic |
You can also read our guide on what makes a vehicle towing capacity to learn all the aspects that go into it.
Here’s a video showing the Hummer H3 being put to a real-world towing test:
Hummer H3 Braked Vs. Unbraked Towing Capacity
All vehicles have different towing capacities based on whether or not you’re towing a trailer that has trailer brakes installed.
Trailer brakes allow the trailer to stop faster than if only the vehicle is using its brakes, allowing the vehicle to tow more weight, so braked towing capacity will always be higher than unbraked towing capacity.
Hummer H3 Braked Towing Capacity: 8,200 lbs.
Hummer H3 Unbraked Towing Capacity: 2,500 lbs.
Hummer H3 Towing Capacity Factors
There are a few factors that affect the Hummer H3 tow capacity.
Model Year
The H3’s tow capability varied a lot by year and generation.
The H3 model years had a max towing capability ranging from 3,000 lbs to 6,000 lbs, so which year you have can make quite a difference.
Body Style
The H3 body style affected the H3’s towing capability for the 2009 & 2010 model years.
The SUV version could tow 100 more pounds than the SUT version.
Engine
Which engine the Hummer H3 had in it also factored in to how much it could tow.
The 5.3L V8 transmission had significantly more towing power than the 3.7L L5 engine.
Transmission
Hummer H3’s with an automatic transmission can pull quite a bit more than those with manual transmissions.
For example, the 2009 H3 with an automatic transmission can pull up 1,500 pounds more than the same model with a manual transmission!
Number of Passengers
A big factor in calculating your vehicle’s towing capacity is how many passengers you’re carrying, which directly calculates into the vehicle’s GCWR.
This is true of all vehicles, not just the Hummer H3, so always take into consideration the total load of your passengers and gear in addition to what you’re towing.
Hummer H3 Tow Package Info
Does The Hummer H3 Have A Tow Package?
Hummer offered an optional H3 towing package which included the following:
- Class IV Hitch Receiver
- 7-Pin Wiring Harness
Can You Install A Trailer Hitch On a Hummer H3?
If you plan on towing anything with your Hummer H3, you’ll need a tow hitch and wiring harness.
Depending on what you’re towing, you’re going to need a ball mount (aka a trailer ball hitch) so you can attach items for towing.
Make sure to get the right trailer ball size that matches your hitch and trailer.
Hummer H3 Tow Hitch
Trailer hitches come in different hitch classes, which are rated for different vehicle sizes and weight limits.
The Hummer H3 uses a Class 3 or Class 4 hitch.
Here’s a great option for a Class III Hummer H3 trailer hitch:
- VERSATILE RECEIVER. Add a useful hitch receiver to the front end of your vehicle with this front mount receiver hitch. The standard 2-inch receiver enables you to attach a snow plow, cargo carrier, bike rack, tow hook, winch mount or other tow accessory
- RELIABLE STRENGTH. This front hitch is rated for 3,000 lbs. GTW and 300 lbs. tongue weight. It is also rated for 9,000 lbs. straight-line pull capacity for recovery towing and winch applications (limited to lowest-rated towing component)
- TESTED BUILD. This front mount hitch is fully tested for your safety at our Detroit engineering facility. We test our front trailer hitch designs according to SAE J684 specifications
- CORROSION-RESISTANT. For superior protection against rust, chipping and UV damage, this front hitch is covered in a dual-layer of rust-resistant A-coat that coats the hitch inside and out, and a highly durable black powder coat
- EASY INSTALLATION. This front tow hitch is engineered with a vehicle-specific design to fit select models of the Hummer H3
Here’s a great ball mount option so you can hook up different types of trailers for towing with your H3:
- DEPENDABLE STRENGTH. Rated to tow 3,500 pounds gross trailer weight and 350 pounds tongue weight, this ball hitch offers dependability for your towing setup (weight capacity may change if trailer ball is removed)
- VERSATILE USE. This trailer hitch ball mount comes with a 1-1/4-inch shank to fit virtually any industry-standard 1-1/4-inch receiver. The ball mount has a 3-1/4-inch drop, 2-inch diameter ball, 1/2-inch hitch pin hole and 7-1/4-inch overall length
- READY TO TOW. Hitching up your trailer is easy with this ready-to-use trailer hitch ball mount. It comes with a pre-attached tow ball for ready coupling and a trailer hitch pin to securely mount onto your hitch receiver
- CORROSION-RESISTANT. For long-lasting use, this ball hitch is protected with a durable black powder coat finish, and the trailer ball has a polished chrome plating. These finishes resist damage from rain, dirt, road salt and other corrosive threats
- EASY TO INSTALL. To install the trailer hitch ball mount on your vehicle, simply insert the shank into your vehicle's 1-1/4-inch hitch receiver. The rounded shank makes installation easy
Hummer H3 Trailer Hitch Installation
Always follow the manufacturer’s directions and use proper safety precautions.
Here’s a great video walkthrough on a Hummer H3 trailer hitch installation:
Hummer H3 Trailer Hitch Installation Cost
If you’re considering having a tow hitch added to your H3, expect to pay between $100 and $200 to have a tow package professionally installed (excluding the cost of the tow hitch and wiring harness).
If you’re handy and looking to save money, you can install the trailer hitch and wiring harness yourself.
Hitch Receiver Vs Rear Step Bumper Towing
Some vehicles allow for bumper towing, which means you can mount a tow hitch ball directly on the bumper instead of installing a tow hitch to the vehicle’s frame.
Can I Bumper Tow With a Hummer H3?
The Hummer H3 is not rated for bumper towing, so you’ll need to install a frame-mounted hitch.
How Do I Know If My Hummer H3 Has A Tow Package?
You can start by looking under the rear bumper of your H3 to see if you notice a trailer hitch or trailer ball.
That will give you a good indication of if you have a tow hitch already installed on your H3.
Another way to research this is by checking the paperwork that came with your vehicle or taking it to a local dealer to see what’s installed.
Make sure to have your VIN (Vehicle Identification Number) handy if you call the dealer so they can look up the exact specs and whether or not your vehicle has any towing packages or features installed on it.
2009 Hummer H3 Towing Capacity
A 2009 Hummer H3 can tow between 2,900 lbs and 6,000 lbs depending on the engine and body style.
A 2009 Hummer H3 with 3.7L engine and automatic transmission can pull 4,500 pounds.
A 2009 Hummer H3 with 3.7L engine and manual transmission can pull 3,000 pounds.
A 2009 Hummer H3 with 5.3L engine and automatic transmission can pull 6,000 pounds.
A 2009 Hummer H3T with 3.7L engine and automatic transmission can pull 4,400 pounds.
A 2009 Hummer H3T with 3.7L engine and manual transmission can pull 2,900 pounds.
A 2009 Hummer H3T with 5.3L engine and automatic transmission can pull 5,900 pounds.
| Hummer H3 Trim Level | Towing Capacity | Engine | Transmission |
| H3 (All) | 4,500 lbs / 2,041 kg | 3.7L L5 | Automatic |
| H3 (All) | 3,000 lbs / 1,361 kg | 3.7L L5 | Manual |
| H3 (All) | 6,000 lbs / 2,721 kg | 5.3L V8 | Automatic |
| H3T (All) | 4,400 lbs / 1,996 kg | 3.7L L5 | Automatic |
| H3T (All) | 2,900 lbs / 1,315 kg | 3.7L L5 | Manual |
| H3T (All) | 5,900 lbs / 2,676 kg | 5.3L V8 | Automatic |
2008 Hummer H3 Towing Capacity
A 2008 Hummer H3 can pull 3,000 lbs to 6,000 lbs depending on the engine and transmission it has.
A 2008 Hummer H3 with 3.7L engine and automatic transmission can pull 4,500 pounds.
A 2008 Hummer H3 with 5.3L engine and automatic transmission can pull 6,000 pounds.
A 2008 Hummer H3 with a manual transmission can pull 3,000 pounds.
| Hummer H3 Trim Level | Towing Capacity | Engine | Transmission |
| H3 (All) | 4,500 lbs / 2,041 kg | 3.7L L5 | Automatic |
| H3 (All) | 3,000 lbs / 1,361 kg | All | Manual |
| H3 (All) | 6,000 lbs / 2,721 kg | 5.3L V8 | Automatic |
2007 Hummer H3 Towing Capacity
A 2007 Hummer H3 can pull 3,000 lbs to 4,500 lbs depending on the transmission it has.
A 2007 Hummer H3 with an automatic transmission can pull 4,500 pounds.
A 2007 Hummer H3 with a manual transmission can pull 3,000 pounds.
| Hummer H3 Trim Level | Towing Capacity | Transmission |
| H3 (All) | 4,500 lbs / 2,041 kg | Automatic |
| H3 (All) | 3,000 lbs / 1,361 kg | Manual |
