SiriusXM, delete|Audio system, 4.2 diagonal color display AM/FM stereo with USB port and auxiliary jack (Requires (AE7) front 40/20/40 split-bench seat. Not available with (UE1) OnStar or (U2K) SiriusXM Radio.)|6-speaker audio system|Headlamps, halogen projector-beam|Tires, rear 225/70R19.5G highway blackwall Pirelli Max Axle Load: 15,000 lb. (Standard on models built after July 17th, 2023) (Requires (XEY) Tires front 225/70R19.5G Highway blackwall Pirelli.)|Glass, solar absorbing, tinted|Lamps, cargo area, cab mounted with switch on center switch bank|Grille, base, molded in color, Black|Tires, front 225/70R19.5G highway blackwall Pirelli Max Axle Load: 7,940 lb. (Standard on models built after July 17th, 2023) (Requires (YEY) Tires, rear 225/70R19.5G highway blackwall Pirelli, Max Axle Load: 15,000 lb. or (YEZ) Tires, rear 225/70R19.5G traction blackwall Pirelli, Max Axle Load: 15,000 lb.)|Wheel, spare delete|Assist steps|Spare tire delete|Wheels, 19.5 x 6.75, steel, Black painted, 8-holes, hub piloted|Bumper, front, Black|Lamps, Smoked Amber roof marker|Door handles, Black|Mirrors, outside high-visibility vertical camper-style, Black with manual folding and extension and lower convex spotter glass|Front fender extension, painted body color|Grille guard screen, insect protection (mounted behind grille)|Lamps, rear, stop/turn/backup (1-piece assembly) with license plate light|Antenna, fixed mast|Steering column, manual Tilt-Wheel|Speedometer, miles/kilometers|Interior trim, Jet Black/Dark Ash (Required and only available with (H2Q/H2R) Dark Ash seats with Jet Black interior accents.)|Mirror, inside rearview manual day/night|Visors, driver and front passenger, vinyl|Seat trim, Vinyl|Floor covering, Graphite-colored rubberized-vinyl|Instrumentation, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure|Steering wheel, urethane|Air conditioning, single-zone|Windows, power with driver express up and down and express down on all other windows|Driver Information Center, 3.5-inch diagonal monochromatic display, provides warning messages and basic vehicle information|Cruise control, steering wheel-mounted|Seat Belt, Black|Door locks, power|Seat, rear 60/40 folding bench (folds up), 3-passenger (includes child seat top tether anchor)|Assist handle, front passenger and driver on A-pillars|Upfitter switch kit provides up to 4-30 amp circuits to facilitate installation of aftermarket electrical accessories located on the instrument panel|Seats, front 40/20/40 split-bench, 3-passenger driver and front passenger recline with outboard head restraints and center fold-down armrest with storage. Vinyl has fixed lumbar and cloth has manually adjustable driver lumbar.|Neutral-at-Stop Automatic transmission shifts to neutral when the service brake is depressed while the vehicle is at a complete stop, and remains in neutral until the service brake is released|Exhaust brake|Steering, power (Bosch S2 8014 Plus)|Exhaust system, rear exit|Fuel tank, rear only, 40 gallon mounted between frame side rails and behind rear axle|Axle to End of Frame, 49 (Requires wheelbase (EM1) 199 or (FNV) 175. Not available with (G40), (GP1) or (GP8) rear air suspension.)|Fuel, diesel B20|Trailer brake controller, integrated|Axle lubricant, front, synthetic oil EmGard FE-75W-90|Alternator, 150 amps|Highway Service Transmission, Automatic close-ratio 6 SPD with double overdrive, Allison, A1700HS ratios: 3.10 1ST, 1.80 2ND, 1.40 3RD, 1.00 4TH, 0.70 5TH, 0.61 6TH Highway Series, 19.5K GVW & 26K GCW Max., requires PTX and park pawl. Available with GVWs less than or equal to 19.5K (Requires (C7Y) 14,001 lb. GVWR, (C5B) 15,000 lb. GVWR, (C7P) 16,000 lb. GVWR, (C7R) 16,500 lb. GVWR, (GZX) 17,500 lb. GVWR, (GZJ) 18,000 lb. GVWR or (GZG) 19,500 lb. GVWR. Requires (R6G) 26,000 lb. GCWR (11,793 kg).)|Emissions, USA 50 State certified|Incomplete vehicle|Axle lubricant, rear, synthetic oil EmGard FE -75W-90|Batteries, heavy-duty dual 1100 cold-cranking amps includes battery box mounted to left side under cab|Rear axle, 11,000 lb. (4,999 kg) Dana Spicer S14-110, single reduction|Front suspension, 7,500 lb. (3,402 kg) multi-leaf, includes shock absorbers|Capped Fuel Fill|Front axle, 7,500 lb., Dana Spicer 60-256, single-reduction, front driving|Rear axle, 4.30 ratio Max road speed: 75 MPH|Four wheel drive|Transmission shift control calibration, fuel sense Performance|Wheelbase, 175 (444.5 cm), 60 CA (Requires (F0C) 49 axle to end of frame. Not available with (G40) 12,000 lb., (GP1) 13,500 lb. or (GP8) 15,500 lb. rear air suspension, or (NPK) Exhaust System.)|Axle, Open rear axle, non-locking rear|Trailering provisions, trailering wire harness only, trailer combined (Stop/Tail/Turn) connection socket and harness mounted at rear of frame.|Brakes, hydraulic, heavy duty Bosch/Meritor/Wabco system with 4-channel (ABS) (Includes (J69) driveline park brake.)|Rear suspension, 11,000 lb. (4,990 kg) multi-leaf, vari-rate|Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel compatible 350 hp

• 2700 rpm, 700 lb.-ft. torque