Infiniti QX56 Towing Capacity (All Years 2004-2013)

The Infiniti QX56 is a full-size luxury SUV produced from 2004 through 2013. It was offered in rear-wheel drive and all-wheel drive configurations, powered by a 5.6-liter V8 engine throughout its production run. This guide covers towing capacity by model year and configuration, including maximum trailer weight, payload limits, and hitch requirements.

Towing specifications changed across two distinct generations: the first generation (2004 to 2010) and the second generation (2011 to 2013). Following manufacturer-rated limits helps protect the engine, transmission, and braking systems from overload damage.

2013 Infiniti QX56 Towing Capacity

The 2013 Infiniti QX56 delivers a maximum towing capacity of 8,500 lbs (3,856 kg) when properly equipped with the factory tow package. The 5.6L direct-injection V8 produces 400 hp and 413 lb-ft of torque, supporting stable trailer weight ratings. Models equipped with the optional tow package include a trailer brake controller pre-wire and upgraded cooling.

2012 Infiniti QX56 Towing Capacity

The 2012 Infiniti QX56 is rated at a maximum towing capacity of 8,500 lbs (3,856 kg). The second-generation 5.6L V8 with direct injection and a seven-speed automatic transmission provides consistent towing performance across RWD and AWD drivetrains. Proper equipment, including a weight-distributing hitch and trailer brake controller, is required for loads approaching the maximum trailer weight limit.

2011 Infiniti QX56 Towing Capacity

The 2011 Infiniti QX56 introduced the second-generation body with a revised 5.6L V8 producing 400 hp. Maximum towing capacity is rated at 8,500 lbs (3,856 kg) for both RWD and AWD configurations. A Class IV weight-distributing hitch ball mount is recommended for trailers exceeding 5,000 lbs.

2010 Infiniti QX56 Towing Capacity

The 2010 Infiniti QX56 achieves a maximum towing capacity of 9,000 lbs (4,082 kg) on the RWD configuration when properly equipped. Gross vehicle weight is rated at 7,150 lbs, and a 5-speed automatic transmission manages trailer load across both RWD and AWD variants. The optional tow package was priced at $350 and includes hitch wiring and upgraded transmission cooling.

2009 Infiniti QX56 Towing Capacity

The 2009 Infiniti QX56 carries a maximum towing capacity of 8,900 lbs (4,037 kg) across all drivetrain configurations. The 5.6L V8 with 5-speed automatic transmission maintains the same power output and towing limits as 2008. Staying within the rated payload and tongue weight limits is essential for maintaining braking stability and drivetrain integrity.

2008 Infiniti QX56 Towing Capacity

The 2008 Infiniti QX56 is rated at 8,900 lbs (4,037 kg) maximum towing capacity. The 5.6L VK56DE V8 engine produces 320 hp and 393 lb-ft of torque, paired with a 5-speed automatic transmission. Exceeding the tongue weight limit or GCWR reduces braking effectiveness and increases the risk of trailer sway.

2007 Infiniti QX56 Towing Capacity

The 2007 Infiniti QX56 in RWD configuration achieves a maximum towing capacity of 9,000 lbs (4,082 kg), the highest of all first-generation models. The AWD variant is rated at 8,900 lbs (4,037 kg) due to added drivetrain weight. Both variants use the 5.6L VK56DE engine producing 320 hp and 393 lb-ft of torque.

2006 Infiniti QX56 Towing Capacity

The 2006 Infiniti QX56 has a maximum towing capacity of 9,000 lbs (4,082 kg) on RWD trims. Standard payload capacity is rated at 1,254 lbs (569 kg), which is lower than later model years. The 5.6L V8 is paired with a 5-speed automatic and a Class III hitch for all configurations.

2005 Infiniti QX56 Towing Capacity

The 2005 Infiniti QX56 delivers a maximum towing capacity of 8,900 lbs (4,037 kg) across all drivetrains. A rear view monitor became standard on 2005 models, improving trailer visibility and reversing control. The Class III hitch and 5.6L V8 combination makes the 2005 model a capable conventional towing platform.

2004 Infiniti QX56 Towing Capacity

The 2004 Infiniti QX56 is the first model year of the nameplate, offering a towing capacity of 8,900 lbs (4,037 kg) with both RWD and AWD drivetrains. The 5.6L VK56DE engine in early 2004 production produced 313 hp before being revised to 315 hp mid-cycle. Curb weight ranges from 5,360 to 5,631 lbs depending on drivetrain selection.

Towing Equipment and Setup Tips

Tow Package

The factory tow package is the most important equipment addition for any Infiniti QX56 used for towing. It includes a Class III or IV receiver hitch, 7-pin trailer wiring harness, and upgraded transmission cooling. The tow package ensures the vehicle meets its rated maximum trailer weight under real-world conditions.

Trailer Brake Controller

A trailer brake controller is required by law in most jurisdictions when the trailer exceeds 3,000 lbs. The QX56 owner’s manual recommends an electronic proportional brake controller for trailers near the maximum towing capacity. This device activates trailer brakes in proportion to the deceleration of the tow vehicle, reducing stopping distance.

Weight-Distributing Hitch

For trailers over 5,000 lbs, a weight-distributing hitch is recommended for all QX56 model years. This device transfers tongue weight from the rear axle of the tow vehicle to the front axle and trailer axles. It maintains level towing geometry and reduces rear-end sag.

Transmission Cooler

An auxiliary transmission cooler reduces operating temperatures during extended towing, especially in hot climates or mountainous terrain. The factory tow package on 2010 and later QX56 models includes an upgraded cooler as a standard component. Overheating the transmission fluid is a leading cause of drivetrain failure during heavy trailer towing.

Tire Load Ratings

Each tire on the QX56 must be rated to carry its share of the combined vehicle and trailer tongue weight. The factory P275/60R20 all-season tires on the 2010 model are rated for the vehicle’s gross weight. Replacing tires with lower load-index variants can reduce effective towing capacity below the manufacturer rating.

Trailer Sway Control

Trailer sway is a loss of directional control caused by improper weight distribution or excess speed. The QX56’s standard stability control system helps mitigate sway in some conditions. A friction or electronic sway control device is recommended for trailers exceeding 6,000 lbs.

Normal Towing vs. Heavy Towing Setup

FAQs

What is the maximum towing capacity of an Infiniti QX56?

The maximum towing capacity of the Infiniti QX56 is 9,000 lbs (4,082 kg), achieved on select 2006, 2007, and 2010 model years in RWD configuration. Second-generation models (2011 to 2013) are rated at 8,500 lbs (3,856 kg) regardless of drivetrain. All ratings apply only when the vehicle is properly equipped with the factory tow package.

How much can an Infiniti QX56 tow with a tow package?

With the factory tow package installed, the Infiniti QX56 can tow up to 9,000 lbs (4,082 kg) on qualifying model years. Without the tow package, towing is not recommended near the maximum trailer weight limit, as the hitch receiver and wiring may not meet rated specifications. The tow package also enables the use of a compatible 7-pin trailer wiring harness for electric trailer brakes.

Does AWD affect Infiniti QX56 towing capacity?

Yes, AWD reduces the maximum towing capacity slightly on some Infiniti QX56 model years. The 2007 model year shows the clearest example: the RWD variant is rated at 9,000 lbs while the AWD variant is rated at 8,900 lbs. This difference is due to the added weight of the front differential and transfer case in AWD-equipped vehicles.

What trailer weight is safe for an Infiniti QX56?

A safe trailer weight is typically 80 percent or less of the maximum rated towing capacity. For the QX56, this places a practical safe towing limit between 6,800 lbs and 7,200 lbs for most model years. This margin accounts for loaded trailer weight, which often exceeds the trailer’s stated dry weight once cargo, fuel, and passengers are added.

Do I need a weight-distributing hitch for an Infiniti QX56?

A weight-distributing hitch is recommended for all QX56 models when towing trailers heavier than 5,000 lbs. It is compatible with Class III and Class IV hitch receivers and is rated to 10,000 lbs with a tongue weight capacity of 1,000 lbs. Using a weight-distributing setup prevents rear-end sag and maintains steering control under load.

What hitch class does the Infiniti QX56 use?

First-generation QX56 models (2004 to 2010) use a Class III receiver hitch with a 2-inch receiver tube. Second-generation models (2011 to 2013) are equipped with or recommended for a Class IV hitch when towing loads approaching 8,500 lbs. The Class IV hitch provides a higher tongue weight rating necessary for maximum towing capacity applications.

Conclusion

The Infiniti QX56 towing capacity ranges from 8,500 lbs (3,856 kg) on second-generation models to 9,000 lbs (4,082 kg) on select first-generation RWD configurations. Drivetrain selection, model year, and the presence of a factory tow package all directly affect the maximum trailer weight the vehicle can safely manage. The 5.6L V8 engine remained consistent throughout production, but power output, transmission type, and hitch class evolved across generations. Always verify specifications using the owner’s manual before towing heavy loads.