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2027 GMC Sierra 1500 Towing Capacity: A Complete Guide for NJ Truck Buyers

Blue GMC Sierra pickup truck in a mountain landscape.
A truck with 481 horsepower should tow more than one with 402 horsepower, right? Simple mathematics, surely. Except towing capacity has a habit of making horsepower figures look rather irrelevant. The 2027 GMC Sierra 1500 demonstrates why, with four engines, several configurations, and a maximum available towing capacity of 13,500 lbs.

For Marlton shoppers comparing trucks at Burns Buick GMC, the takeaway is straightforward: start with what you plan to tow, then choose the engine, cab, drivetrain, and equipment that meet those needs. Configuration, not horsepower alone, determines whether a particular Sierra is the right match.

Four Engines, Four Different Approaches


The 2027 Sierra 1500 offers four engines, each paired with a 10-speed automatic transmission. The lineup includes an enhanced TurboMax, two new sixth-generation Small Block V8 engines, and a Duramax Turbo-Diesel.

The enhanced 2.7L TurboMax produces 350 hp and 455 lbs. ft. of torque, supporting up to 9,400 lbs. of towing. The new 5.7L V8 develops 402 hp and 428 lbs. ft. of torque, yet achieves the lineup's highest towing rating of 13,500 lbs. when properly equipped. Meanwhile, the larger 6.6L V8 produces 481 hp and 501 lbs. ft. of torque but tops out at 9,400 lbs. in Crew Cab 4WD configuration. The 3.0L Duramax Turbo-Diesel delivers 305 hp and 495 lbs. ft. of torque, with a maximum towing capacity of 12,100 lbs. when appropriately equipped.

Why Configuration Changes Everything


The Sierra’s maximum available towing rating requires a properly equipped 5.7L V8 Double Cab 4WD configuration with the required trailering equipment. Choosing a different cab, drivetrain, equipment combination, or vehicle load can change the amount a truck can tow. GMC also notes that passengers, cargo, options, and accessories affect trailering capability.


That distinction matters when comparing individual trucks. A headline maximum tells you what the lineup can achieve—not necessarily what the Sierra in front of you is rated to handle.


For your visit to Burns Buick GMC, prepare a short towing checklist:


  • Your trailer’s expected loaded weight, not just its empty weight.

  • The number of passengers who normally travel with you.

  • Tools, luggage, or other cargo you expect to carry.

  • Your preferred cab, bed, and drivetrain.

  • The towing and payload information for the specific truck you are considering.

Use the truck’s vehicle-specific ratings and the trailering instructions in its Owner’s Manual to make the final equipment decision.



Six Trims, Different Priorities


The Sierra lineup stretches from the work-focused Pro to the luxurious Denali Ultimate. Pro starts with the enhanced TurboMax and standard trailering equipment, while Elevation offers configurations capable of reaching the maximum towing rating. AT4 adds a standard 5.7L V8, 2-inch factory lift, off-road suspension equipment, and Super Cruise® technology. AT4X ventures further with Multimatic DSSV dampers, Jounce Control Dampers, electronic locking differentials at both axles, and 35-inch mud-terrain tires. Denali and Denali Ultimate emphasize premium appointments, with the latter offering the muscular 6.6L V8. More power, of course, doesn't automatically mean more towing capacity.

Technology That Takes the Guesswork Out


Towing a trailer is considerably easier when you can see where its corners are going. The Sierra offers up to 19 available camera views, including trailer-specific perspectives, while available underbody cameras assist with challenging terrain. Super Cruise® supports hands-free operation on compatible roads, including towing compatible trailers, although driver attention remains essential. More than 60 inches of available digital displays include a 16.3-inch articulating infotainment touchscreen, supported by additional driver information screens.

Available trailering tools include Hitch View, the in-vehicle Trailering App, and Trailer Brake Gain Assistant. These features provide additional information and assistance during different parts of the towing process, from preparing to connect a trailer to adjusting trailer-brake settings.

A More Connected Cabin, Depending on Trim


The Sierra’s cabin technology includes a 16.3-inch diagonal infotainment touchscreen, with an articulating design offered on select trims. Denali Ultimate offers more than 60 inches of combined digital displays. These are trim- and equipment-dependent features, not a description of every Sierra interior.


Explore the 2027 Sierra at Burns Buick GMC


Choosing a Sierra for towing starts with matching the truck to the job. The right engine matters, but so do the cab, drivetrain, trailering equipment, and the passengers and cargo that will travel with you. Visit Burns Buick GMC in Marlton, NJ, to compare available 2027 Sierra 1500 trims, powertrains, trailering packages, and configurations.

Ask about available inventory, incoming vehicles, and test-drive opportunities before visiting. That way, your next step is based on the Sierra that fits your needs—not just the biggest number in the brochure.
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