2026 GMC Yukon XL AT4: Danvers Buyers Guide
Quick Answer: 2026 Yukon XL AT4
The Yukon XL AT4 starts at $79,600 MSRP with four-wheel drive standard — not optional — plus a high-approach front fascia with skid plate and red recovery hooks, heated and ventilated front seats, 20-inch machined all-terrain wheels, and standard Magnetic Ride Control. The 5.3L V8 is standard; the 420-hp 6.2L V8 is available as an upgrade, along with Super Cruise and Air Ride Adaptive Suspension. It's the same off-road package as the standard-wheelbase Yukon AT4, riding on a body that's 15.1 inches longer, which means the same trail hardware now comes with 144.5 cubic feet of cargo room instead of 122.8. For a North Shore buyer who wants both real capability and real cargo space, this is the trim.
Standard 4WD, on the long-wheelbase body
AT4 is where the Yukon XL stops pretending to be a soft-roader. Four-wheel drive is standard — GMC doesn't offer a rear-drive-only XL AT4, the same rule as the shorter Yukon — and it's paired with an Active Response 4WD system, Magnetic Ride Control reading the road up to 1,000 times a second, and 20-inch all-terrain-tired wheels. The front fascia's higher approach angle, skid plate, and red recovery hooks are functional, not just badging. All of that off-road hardware carries over identically from the standard Yukon AT4; what's different is what's behind it, with an extra 21.1 cubic feet of cargo room behind the second row (93.6 vs. 72.5) that a standard-wheelbase AT4 simply doesn't have.
5.3L standard, 6.2L available
The base engine is the 5.3L V8 (355 hp, 383 lb-ft), rated at 17 mpg combined in 2WD trim on the standard Yukon — the XL's own EPA figures track closely given the identical powertrain and a larger fuel tank offsetting the added mass. Step up to the optional 6.2L V8 (420 hp, 460 lb-ft) for more low-end pull, useful when this AT4 is loaded with camping gear and pulling a trailer up a grade. Both engines run the same 10-speed automatic, and AT4's standard Magnetic Ride Control doesn't change with the engine choice.
What "standard 4WD" actually means for towing
Because AT4 and AT4 Ultimate are 4WD-only, their max towing figures land about 200 lbs below the RWD-available Elevation and Denali configurations, per GMC's general trailering guidance for the line — worth knowing if this XL AT4 is also your boat-launch vehicle for Cape Ann or the Manchester harbor. The pricing guide covers what a fully-equipped AT4 with the Max Trailering Package actually runs; ask GMC Danvers to confirm the current towing rating on the exact build you're configuring, since GMC's own published figures for this line vary by source.
Who buys the XL AT4 here
Boat owners and campers who need genuine 4WD capability and a third row that isn't a compromise once it's occupied. North Shore buyers doing regular trailer duty who also want the standard-Yukon AT4's trail manners on longer trips. Reviewers describe a sales team that moves fast once you're ready: "Excellent service from Gage," wrote Jake K. "Seamless experience and delivery."
If the extra off-road hardware isn't a priority, the Elevation guide covers the same cargo capacity at a lower price. If you want AT4's capability with a more premium cabin, the AT4 Ultimate guide is the step up.
Frequently asked questions
What does the 2026 Yukon XL AT4 cost?
MSRP is $79,600 before GMC's $2,795 destination charge, Massachusetts' 6.25% sales tax, registration, and the annual excise.
Can I get rear-wheel drive on the XL AT4?
No. AT4 and AT4 Ultimate are four-wheel-drive-only on both the standard Yukon and the Yukon XL — there's no 2WD or RWD configuration available on this trim.
Is the 6.2L V8 standard on the XL AT4?
No — it's an available upgrade over the standard 5.3L V8. The 6.2L V8 becomes standard starting on AT4 Ultimate.
How much can a Yukon XL AT4 tow?
GMC's own published trailering figures for the Yukon/Yukon XL line aren't perfectly consistent across every source, and AT4's standard 4WD configuration tows somewhat less than the RWD-available trims. Confirm the exact rating for your build and configuration with GMC Danvers before assuming a specific number.
Where can I test-drive an XL AT4?
Check live inventory at GMC Danvers on High Street, or start with the dealer's trade valuation tool before you visit.
The bottom line
AT4 takes the standard Yukon's most capable off-road trim and gives it the XL's extra cargo room without touching the trail hardware. If you tow, camp, or just want 4WD as a given rather than an option, this is the Yukon XL to configure — the only real decision left is which of the two V8s.
MSRP figures exclude the $2,795 destination charge plus taxes, title, registration, and dealer-installed options; the dealer sets the actual selling price. Towing, fuel-economy, and cargo-volume figures are manufacturer/EPA estimates and vary by drivetrain, configuration, and equipment; confirm current specs with GMC Danvers. Customer quotes are excerpts from public Google reviews of GMC Danvers.