Used 2018 Ram 2500 Mega Cab Trims Comparison

Cab styles include a two-door regular cab, a four-door crew cab, and a four-door jumbo crew cab called the Mega Cab. The regular cab comes with a long bed (8 feet) only, while the crew cab has either the long bed or the short bed (6 feet 4 inches). The Mega Cab rides on the same wheelbase as the long-bed crew cab but combines an even bigger cabin with the short bed.

Most 2500s come with a 5.7-liter V8 gasoline engine (383 horsepower, 400 pound-feet of torque) paired with a six-speed automatic transmission. A modified version of this engine runs on compressed natural gas (CNG) and produces identical power figures to the gasoline version. The CNG option is only available on regular and crew-cab models with the 8-foot bed.

There are two optional engines: a 6.4-liter V8 (410 hp, 429 lb-ft of torque) paired to a six-speed automatic transmission and a turbocharged 6.7-liter diesel six-cylinder. The latter makes 350 hp and 660 lb-ft when matched to a six-speed manual transmission. When paired with a reinforced six-speed automatic, those numbers are 370 hp and 800 lb-ft of torque.

The Tradesman and SLT trims are available with all three cabs, while the Big Horn/Lone Star, Laramie, Laramie Longhorn and Limited versions can only be ordered with a crew cab or a Mega Cab. The off-road Power Wagon variant (crew cab, short bed only) can be ordered in Tradesman and standard forms.

The 2500 is available with either rear-wheel drive or part-time four-wheel drive, except the Power Wagon, which is available in 4WD form only.

The Tradesman is the most basic trim. Standard feature highlights include 17-inch steel wheels, a locking tailgate, air conditioning, a 40/20/40-split front bench, a tilt-only steering wheel, a driver information display, vinyl upholstery, an auto-dimming rearview mirror with an incorporated rearview camera display, and a six-speaker stereo with a USB port.

Power windows and locks, including the locking tailgate, are standard on crew-cab models, as are power-adjustable and heated mirrors. Regular-cab models have manual controls and non-heated mirrors by default.

The SLT adds chrome exterior trim, 18-inch steel wheels, an integrated trailer brake controller, power heated mirrors, a power-sliding rear window (manual on regular cabs), remote locking and unlocking, an overhead console, cloth upholstery, carpeted floors, full power accessories for all body styles, Bluetooth, satellite radio, and a 5-inch touchscreen interface that displays the rearview camera image.

The Big Horn (Lone Star for shoppers in Texas) adds 18-inch alloy wheels, a limited-slip rear differential, chrome grille slats, foglights, remote ignition, a 115-volt power outlet, a power-adjustable driver's seat, premium cloth upholstery and an extra charge-only USB port.

The Laramie builds off the Big Horn /Lone Star and adds a standard 6.4-liter V8, more chrome trim (including the bumpers), projector headlights, LED taillights, power-folding and auto-dimming mirrors, front and rear parking sensors, dual-zone automatic climate control, leather upholstery, driver-seat memory settings, a power-adjustable front passenger seat, heated and ventilated front seats, a heated steering wheel, an upgraded driver information display, a 10-speaker surround-sound audio system, HD radio, a 4G LTE Wi-Fi hotspot, and an 8.4-inch touchscreen with Apple CarPlay and Android Auto. The limited-slip differential is dropped as standard equipment but is available as an option.

The Laramie Longhorn adds to the Laramie's substantial features list by including a chrome mesh grille, accent-colored bumpers, running boards, a spray-in bedliner, LED bed lights, remote ignition, a full center console, upgraded floor mats, upgraded leather upholstery, wood interior and steering wheel trim, power-adjustable pedals with memory settings, front bucket seats, heated rear seats and a navigation system.

The Limited trim adds monotone paint, color-keyed bumpers, 20-inch wheels, additional chrome exterior trim, automatic high beams, automatic wipers, the RamBox cargo management system (includes bedside storage compartments, an adjustable bed divider and tie-downs), keyless entry and ignition, and special black leather upholstery.

Finally, there's the off-road-themed Power Wagon, which is available only in crew-cab 4WD with the short bed and the 6.4-liter V8. It has some slightly different exterior and interior styling changes, but it's the extensive mechanical upgrades that make a Power Wagon. They include unique 17-inch wheels shod with aggressive all-terrain tires, Bilstein off-road shock absorbers, tow hooks, skid plates, a manual transfer case, electronically locking front and rear differentials with a 4.10 axle ratio, hill descent control, an integrated front winch, and a front anti-roll bar than can be disconnected electronically to improve wheel articulation off-road.

Interestingly, the Power Wagon isn't just a trim level. It's also an option package you can add to a crew-cab Tradesman 4x4 with a 6.4-liter Hemi engine. Here you'll get all of the Power Wagon mechanical bits, including the fender flares, but without any other bodywork styling cues or graphics. It's a stealthy working man's Power Wagon at a lower price.

Those who aren't looking for the extreme capability of the Power Wagon can select the 4x4 Off-Road package that is available on 2500 crew-cab and Mega Cab 4x4 models. This package is available with any engine and includes hill descent control, tow hooks, a transfer case skid plate, upgraded shocks, a limited-slip differential, and all-terrain tires.

Many upper trim features are available on lower trim levels as part of packages or as stand-alone options. Other option highlights include a load-leveling air suspension, tow mirrors, a cargo-view camera, fifth-wheel trailer preparation, off-road tires, a CD player and a sunroof.