Overview

Overview
This is a new 2025 Peterbilt Model 548 medium duty day cab. It has the Peterbilt Aero 107" BBC SMC hood with an aluminum cab and a complete-mount New Way 25RL King Cobra rear loader. It's spec'd for refuse, scrap and recycling in on-highway refuse service. GVWR is 62,000 lbs, with a front axle load of 20,000 lbs and a rear axle load of 44,000 lbs. The cab, hood, fenders and roof are painted white in Axalta two-stage paint over a black frame, and the body is also painted white.

Engine & Drivetrain
Power comes from a PACCAR PX-9 (2024 emissions) rated 350 HP @ 2,000 RPM, governed at 2,200 RPM, with 1,050 lb-ft @ 1,200 RPM. The powertrain is optimized for performance in vocational applications, with a typical operating speed of 65 MPH. It runs on EMUX electronics architecture. Other engine features include a VGT exhaust brake, labeled engine protection shutdown, a Horton on/off fan clutch, a high-efficiency cooling system, and an engine-mounted air cleaner with an air restriction indicator. The engine idle shutdown timer is disabled, and the unit is CARB and EPA idling compliant. The electrical system has a PACCAR 160-amp brushed alternator, a PACCAR 12V starter, three PACCAR Premium 12V dual-purpose batteries (2,190 CCA), an under-hood battery jumper terminal, a low-voltage disconnect system, and a battery disconnect switch on the battery box. You also get a 110–120V immersion block heater, a PACCAR fuel/water separator with 12V fuel filter heat, and an 18.7 CFM air compressor. A 12-pin remote PTO/throttle provision sits in the engine bay, and maximum PTO speed is set at 1,400 RPM. Exhaust is a single RH system with the DPF/SCR in one module under the cab on the RH side, and a 36" tall, 5" diameter chrome standpipe with a curved tip.

Transmission
The transmission is an Allison 3000 RDS-P Gen 6 Rugged Duty Series in a 6-speed close-ratio setup. It has a TC-421 torque converter and uses RDS Package 180 with primary shift schedule 1. It's operated from a dash-mounted push-button shifter. Features include auto neutral with the parking brake, neutral at stop, an output-function neutral indicator for PTO, and LH-mounted transmission PTO provisions. The driveline is a 1710 HD with one midship bearing.

Chassis & Axles
The wheelbase is 230", with a 162.5" cab-to-axle, 220.5" cab-to-end-of-frame, and 67.5" front-axle-to-back-of-cab. The frame uses 10-5/8" steel rails with 5/16" thickness and a full steel inner liner. The rails are zinc coated for corrosion protection. Crossmembers are an HD 5-piece at the back of cab, aluminum frame rail crossmembers, and 3-piece suspension crossmembers. The end of frame is square with no crossmember, ready for a body-builder crossmember, and has a moveable crossmember for the taillights. Up front is a PACCAR FX-20 wide-track steer axle rated 20,000 lbs with a 4" drop and PHP10 iron Preset+ hubs. Steering is Sheppard HD94 dual-gear power steering with a frame-mounted reservoir and cooler. The rears are Meritor RT46-160 rated 46,000 lbs, with a 5.63 ratio, a rear-rear diff lock with speed interlock, PHP10 iron Preset+ hubs and synthetic lube in all axles. GAWR is 20,000 lbs front and 22,000 lbs on each rear axle. Brakes are Bendix air cam drums, 16.5x7 front and 16.5x8.6 rear. They have refuse service brakes on the steer and drive axles, gusseted cam brackets front and rear, heavy-duty steer cam bushings, an SBM valve and 4S4M ABS. The air system has a heated Bendix AD-HF air dryer with coalescing filter, nylon chassis hose, aluminum air tanks outside the frame rails with pull cords, and all air components cleared outside the frame on both sides behind the cab. For fuel, there's a 70-gallon D-shaped polished aluminum tank under the cab on the LH side, with a polished non-slip step and polished straps. The 14-gallon DEF tank is mounted LH behind the cab with a polished stainless cover. There's also an aluminum space-saver battery box behind the cab on the RH side with side access, an aluminum non-slip cab entry step, and a tapered chrome steel bumper with two tow points.

Suspension
The front suspension uses 20,000-lb taper leaf springs with shocks and 40 mm spacer blocks. The rear is a Reyco 102 multi-leaf rated 44,000 lbs with 52" axle spacing. The cab rides on air suspension.

Cab & Interior
The cab has a thermal insulation package and the ProBilt charcoal gray interior with a curved roof. The driver gets a Sears air-ride, high-back, black vinyl seat with an RH armrest. The passenger side has a Sears non-air, low-back, 2-person vinyl bench with a toolbox underneath, and the seat belts are orange. The multifunction steering wheel has audio and cruise controls on a tilt/telescope column. Other interior features include metal kick plates on the door panels, power locks and windows, a combination fresh-air heater and A/C, and auto-reset circuit protection. The ConcertClass AM/FM/WB radio has a 3.5 mm aux input, Bluetooth phone and audio, a USB port and two speakers. The cab is prewired for CB, with dual mirror antenna mounts and terminals under the header. It has global telematics hardware and a 5-year SmartLINQ RD subscription. The 7" digital cluster shows transmission oil temp, engine hours, PTO hours, turbo boost and percent torque, with a dual-scale MPH/KPH speedometer. It has one extra wired dash switch and room for up to four more. On the outside, there's a bright hood crown, 4" extra-wide fender lips, a stainless outside sunvisor and a textured NFPA-compliant grab handle. Glass includes dark window tint, a one-piece curved windshield and a fixed one-piece rear window. The motorized, heated Aero mirrors have integrated convex and bright housings, and a look-down mirror sits over the passenger door. There are dual 26" round air horns on the roof and intermittent wipers. Lighting includes composite fender-mounted headlights with integral DRLs, five chrome LED Aero marker lights, self-canceling turn signals and LED stop/turn/tail/backup lamps. It also comes with a 107 dB backup alarm, a fire extinguisher and a triangle reflector kit.

Body & Equipment
The body is a New Way 25RL King Cobra rear loader, complete mount and full welded. Its auto-trans (Hot Shift with Overspeed) gear pump lets it pack on the go. The body floor is ¼" 80K steel and the hopper floor is ½" 50K with a ¼" 100K back liner. The eject panel is 7GA 80K and the slide face is ¼" 50K. The lower tailgate sides are ¼" 100K, and the rear side panels are 7GA 80K with two per side. It has a 12,000 lb reeving cylinder and dual Perkins D6620 tippers. Lighting includes mid-body backup lights and four work lights, with two on the upper tailgate and two in the hopper. The integrated strobe package has six lights: two on the upper tailgate, two on the lower tailgate and two on the front of the body. Other equipment includes a backup camera with a 5" monitor, a 20 lb fire extinguisher upgrade, and driver- and curbside safety shutdown with a driver alert buzzer. There are also a tailgate seal extension, remote grease zerks, guards over the roof hoses and pipes, access-door ladder steps with handles, a shovel/broom rack, and rubber mud flaps behind the rear axles.

Tires & Wheels
The fronts are Goodyear 315/80R22.5 G289 WHA 20-ply tires on Alcoa 89U647 22.5x9.00 high-polish aluminum wheels. The rears are eight AP 11R22.5 EnduCombi RDCS 16-ply tires on eight Alcoa ULA187 22.5x8.25 high-polish aluminum wheels.

Warranty & Protection
The chassis has Peterbilt Class 7 Standard Coverage for 1 year with unlimited miles. The PACCAR PX-9 engine has standard coverage for 2 years, 250,000 miles or 6,250 hours, plus emissions (CARB operation) coverage for 5 years or 150,000 miles. From New Way, the cylinders are covered for 2 years, the body for 1 year and the hydraulics for 1 year.