On standard-wheelbase 2027 Grand Wagoneer 4x4 models, the Heavy-Duty Trailer-Tow Package is what unlocks towing of up to 10,000 pounds, properly equipped. Its 3.92 rear axle takes the place of the standard 3.55 ratio, and that swap moves the number. Owners who tow a heavy camper or a tandem-axle boat will want the package on the build sheet.

The Upland needs no such add-on. Its standard 3.92 axle, two-speed transfer case and electronic limited-slip rear differential earn a rating of up to 10,000 pounds, properly equipped. The package can be ordered on the Limited, Limited Altitude, Overland, Summit, Summit Obsidian and Summit Reserve, and on the Grand Wagoneer trim when it is a 4x4. Separate ratings apply to the Grand Wagoneer L and to other builds without the package, so confirm the figure for your exact vehicle.

• Standard-wheelbase 4x4 with tow package: up to 10,000 lbs, properly equipped
• Upland: 3.92 axle standard, up to 10,000 lbs properly equipped
• Heavy-Duty Trailer-Tow Package swaps in a 3.92 rear axle
• Weight-distributing hitch advised at 5,000 lbs and heavier
• Owner's manual: no towing during the first 500 miles

Torque matters most with a trailer attached, and every 2027 Jeep Grand Wagoneer delivers 468 lb-ft of it at 3,500 rpm from a 3.0L Hurricane twin-turbo inline-six that also makes 420 horsepower. The 8-speed automatic adds a TOW/HAUL mode, which the owner's manual recommends for every towing trip to cut excessive shifting and transmission heat. On fuel, the engine is designed for 87-octane regular unleaded, and the manual points to 91-octane or higher premium for optimal performance when towing or in hot weather.

The standard 4x4 hardware pairs a full-time single-speed transfer case with Selec-Terrain settings for Auto, Sport, Snow and Sand/Mud. Quadra-Drive II, standard on the Upland and part of the Heavy-Duty Trailer-Tow Package, adds a two-speed transfer case with low range and an electronic limited-slip rear differential. Trailer light monitoring, trailer tire-pressure monitoring and Blind Spot Monitoring with Trailer Detection are included on the Upland and on tow-package builds. Package-equipped 4x4s add trailer-brake control and trailer-hitch zoom, which magnifies the rear camera view up to four times.

• Twin-turbo Hurricane six with 468 lb-ft and 420 hp
• 8-speed automatic with a dedicated TOW/HAUL mode
• Two-speed Quadra-Drive II on Upland or with the package
• Trailer-brake control and hitch zoom with the tow package
• Factory 7-pin/4-pin wiring and heavy-duty cooling on every model

Even with all three rows occupied, a standard-wheelbase 2027 Grand Wagoneer keeps 27.9 cubic feet open behind the third row for cargo. Jeep describes that area as room for groceries, luggage, golf bags or hockey gear. With the 60/40 third row lowered, the space behind row two grows to 70.8 cubic feet, and stowing the second row too makes room for up to 116.7 cubic feet.

At 228.1 inches long with a 130.0-inch wheelbase, the Grand Wagoneer L carries 42.6 cubic feet behind its third row, 14.7 cubic feet beyond the standard-wheelbase figure. The 8-Passenger Seating Package fits a 40/20/40 bench for an eighth rider on every model short of the Summit Reserve; without it, second-row captain's chairs keep the standard count at seven. A cooler can go straight into the back without being set down, since the hands-free power liftgate is standard.

• Every row in use: 27.9 cu ft, 123-inch wheelbase
• Behind row two: 70.8 cu ft, 123-inch wheelbase
• Both rear rows stowed: up to 116.7 cu ft, 123-inch wheelbase
• Long-wheelbase L, every row in use: 42.6 cu ft
• Optional 40/20/40 bench seats eight, except in Summit Reserve