Description
This new 2025 Peterbilt 548 flatbed is built to work, powered by a 350 HP PACCAR PX-9 paired with an Allison 3000 RDS-P 6-speed automatic. A 40,000 lb Meritor rear axle with diff lock and Hendrickson HMX EX suspension back a 24'6" TEC steel platform body equipped with a genuine Moffett/Princeton fork lift carrier kit, seven slider-rail winches, an underbody toolbox, and HD ICC underride protection. Backed by PACCAR's 2-year/250,000-mile engine coverage and a 5-year/100,000-mile EPA emissions warranty. Contact us to learn more.
Overview
This new 2025 Peterbilt 548 medium-duty conventional is configured as a flatbed, built for city delivery and general commodity hauling. It pairs a 350 HP PACCAR PX-9 engine and Allison 6-speed automatic with a 40,000 lb tandem rear axle, riding on a 24'6" TEC steel platform body outfitted with a genuine Moffett/Princeton fork lift carrier kit. GVWR is rated at 54,600 lbs.
Engine & Drivetrain
Powered by a PACCAR PX-9 engine rated at 350 HP (governed at 2,200 RPM) with 1,050 lb-ft of torque at 1,200 RPM, built to 2024 emissions standards. EMUX electronics architecture, PACCAR 160-amp brushed alternator, immersion-type block heater (110-120V), and two PACCAR premium 12V starting batteries (2,000 CCA). Equipped with a Horton on/off fan clutch, 18.7 CFM air compressor, VGT exhaust brake, and a high-efficiency cooling system. Exhaust is routed single right-hand side of cab with a DPF/SCR under-cab single module, a curved-tip standpipe, and a 36" chrome standpipe with clear coat. Transmission is an Allison 3000 RDS-P, Gen 6 Rugged Duty Series 6-speed automatic with close-ratio gears, dash-mounted push-button shifter, and neutral-at-stop feature. Driveline is a 1710 HD unit with 2 midship bearings and an interaxle driveline for the tandem rear axles, with a Chelsea PTO provision and a dash-mounted single-acting electric-over-hydraulic PTO control. Typical operating speed is set at 65 MPH.
Chassis & Axles
Frame consists of 10-3/4" steel rails (403"-444" range) at 3/8" thickness with a full steel inner liner and aluminum frame rail crossmembers. Front axle is a Meritor MFS+14F rated 14,600 lbs with a 3.5" drop, taper leaf springs, Sheppard SD110 power steering, and Meritor EX+ LS air disc brakes with severe-service disc brake rotors. Rear axle is a Meritor MT40-14X rated 40,000 lbs with a 5.29 ratio, heavy-wall axle housings, differential lock with speed interlock, and Meritor EX+ LS air disc brakes. Both axles ride on PHP10 Iron Preset+ hubs, with a 6S6M anti-lock braking system and synthetic axle lubricant throughout. GAWR is rated 14,600 lbs front / 20,000 lbs per intermediate axle group, with a 54,600 lb GVWR and 54,600 lb GCW. Wheelbase measures 274", with a 67.5" FAX/BOC and 206.5" cab-to-axle dimension; maximum grade rating is 6%. A D-shaped aluminum 100-gallon fuel tank is mounted left-hand under cab with a non-slip step, alongside a DEF tank mounted left-hand back of cab (large, HD 30 gal / MD 15 gal) with a polished stainless steel cover. Aluminum space-saver battery box is mounted right-hand back of cab with side access, and the chassis carries a chromed, tapered steel bumper with 2 tow points.
Suspension
Hendrickson HMX EX 400 rear suspension rated 40,000 lbs with a 54" spread, HAULMAAX design and 60K creep rating.
Cab & Interior
Peterbilt Aero 107" BBC cab with SMC hood, molded charcoal crown, and aluminum cab construction, finished with a bright-finish hood crown. Thermal insulation package included. Sears driver and passenger seats, with an air-ride, high-back, vinyl driver seat and a high-back vinyl passenger seat, plus driver/passenger armrests. Adjustable tilt/telescope steering column with a Peterbilt-logo steering wheel. ProBilt charcoal gray interior with curved roof, one-piece curved windshield, fixed one-piece glass rear window, power door locks and power windows, and a combo fresh-air heater/air conditioner. Motorized, heated aero mirrors with integrated convex lenses, a look-down mirror over the passenger door, and round hood-mounted mirrors round out visibility. ConcertClass AM/FM radio with weatherband and 3.5mm aux, a standard 2-speaker package, Bluetooth phone/audio, USB port, and SmartLinq RD telematics with a 5-year subscription. The digital 7" instrument cluster displays transmission oil temperature, engine hourmeter, PTO hourmeter, turbo boost, and percent torque, alongside a dual-scale speedometer, air restriction indicator, and brake application air pressure gauge. Electric windshield wipers with intermittent feature, cab air suspension, and auto-reset circuit protection are included, along with an NFPA-compliant exterior cab entry grabhandle, triangle reflector kit, fire extinguisher, and a 107 dB backup alarm. Exterior is finished in an Axalta two-stage paint: white cab, hood top, cab roof, and fenders over a black frame.
Body & Equipment
24'6" long x 102" wide TEC steel platform flatbed body (Body # 10-3625-24) with 7" structural channel longsills and 4" structural channel crossmembers on 2" centers, gusseted every other crossmember. TEC formed side rails with stake pockets and a 3/16" smooth steel floor; the underside of the body is fully undercoated with petroleum-based undercoating. A full-height bulkhead with window cut-out is finished in black enamel. Equipped with an LED marker light kit (3/4 bullet style), reflective white conspicuity tape on both sides (stitched) and full-width across the rear, HD ICC underride protection, and anti-sail mud flaps. Includes a 12-volt DC backup alarm, an underbody toolbox on the driver's side, seven 4" winches and straps mounted on a slider rail on the passenger side with a winch bar holder mounted on the bulkhead, and a 3-point access ladder at the bulkhead on the driver's side. Fitted with a genuine Moffett/Princeton fork lift carrier kit (factory kit, not an aftermarket knock-off).
Tires & Wheels
Front tires are 12R22.5 HSC3, 16-ply, with TPMS sensors. Rear tires are 11R22.5 HDR2+, 14-ply, in an eight-tire rear configuration. Wheels are Alcoa 22.5x8.25 high-polish aluminum, eight-wheel rear configuration.
Warranty & Protection
This new Peterbilt is backed by PACCAR PX-9 standard coverage of 2 years/250,000 miles (402,336 km)/6,250 hours, Peterbilt Class 7 standard coverage of 1 year/unlimited miles, and an EPA emissions warranty of 5 years/100,000 miles.Specifications
Year2026
ManufacturerPETERBILT
Model548
Mileage1 mi
VIN2NP8LJ9X2TM798145
ConditionNew
Stock NumberTM 798145
Horsepower350 HP
Engine ManufacturerPACCAR
Engine ModelPX9
Fuel TypeDiesel
TransmissionAutomatic
Transmission ManufacturerALLISON
Transmission TypeAllison RDS
Ratio5.29
SuspensionHendrickson HMX460
Number of Rear AxlesTandem
Gross Vehicle Weight RatingClass 8: 33,001 pounds or greater
Front Axle Weight14,600 lb
Rear Axle Weight40,000 lb
Wheelbase274 in
Drive SideLeft Hand Drive
ColorWHITE
CabStandard Cab
Cab StyleConventional
Year2026|
ManufacturerPETERBILT|
Model548|
Mileage1 mi|
VIN2NP8LJ9X2TM798145|
ConditionNew|
Stock NumberTM 798145|
Horsepower350 HP|
Engine ManufacturerPACCAR|
Engine ModelPX9|
Fuel TypeDiesel|
TransmissionAutomatic|
Transmission ManufacturerALLISON|
Transmission TypeAllison RDS|
Ratio5.29|
SuspensionHendrickson HMX460|
Number of Rear AxlesTandem|
Gross Vehicle Weight RatingClass 8: 33,001 pounds or greater|
Front Axle Weight14,600 lb|
Rear Axle Weight40,000 lb|
Wheelbase274 in|
Drive SideLeft Hand Drive|
ColorWHITE|
CabStandard Cab|
Cab StyleConventional|
