Overview

Overview
This new 2027 Peterbilt 567 conventional day cab is built for construction dump work, both on and off highway, hauling construction materials. It has six axles: a front steer axle, three self-steering pusher axles and a tandem drive. The GVWR is 85,000 lbs, and it carries a 20' Heritage aluminum material hauler end dump body.

Engine & Drivetrain
The Cummins X15 Production Series engine is rated at 525 HP at 1,900 RPM and governed at 2,000 RPM, with 1,850 lb-ft of torque at 1,000 RPM. It is a 2026 model year engine that meets 2024 emissions standards. The powertrain is optimized for performance in vocational applications or with heavy GCWR, set up for a typical operating speed of 68 MPH, with maximum cruise control speed also set at 68 MPH. Engine equipment includes a Jacobs compression brake with controls on the right-hand column, a 12-pin remote PTO/throttle provision in the engine bay, and a PTO maximum engine speed of 1,400 RPM. Electrical equipment includes EMUX electronics architecture, a PACCAR 160-amp brushed alternator, a PACCAR premium starter, three PACCAR AGM 12V batteries totaling 2,775 CCA, a battery jumper terminal under the hood on the left frame rail, a low voltage disconnect system, and a 110–120V immersion-type block heater. Cooling and air intake include a high-efficiency cooling system, a 2-speed fan clutch for frequent start/stops, dual self-cleaning pre-cleaners mounted under the hood, and a firewall-mounted air cleaner. The fuel system has a PACCAR fuel/water separator, fuel heat for the fuel filter and a fuel cooler. The exhaust is a dual SOC setup with a left-hand stack and a single-module DPF/SCR mounted under the cab on the right-hand side, finished with a 36" chrome standpipe and a 45-degree cut curved tip. A 37.4 CFM air compressor supplies the air system. The transmission is an Allison 4500 RDS-P Gen 6 Rugged Duty Series automatic in a 6-speed configuration, with a TC-561 torque converter, HS/RDS Package 223, Primary Shift Schedule 2 and Neutral at Stop, and it shifts from a dash-mounted push-button shifter. FuelSense Dynamic Shift Sensing was not selected. The driveline is a Spicer SPL170 HD-XL with two midship bearings and an SPL170 XL interaxle shaft for the tandem rear axles. A dash-mounted, single-acting electric-over-hydraulic PTO control is included.

Chassis & Axles
The wheelbase is 312", with a cab-to-axle measurement of 221.9", cab-to-end-of-frame of 276.9" and front-axle-to-back-of-cab of 90.1". The frame uses 11-5/8" steel rails, 3/8" thick, running to 444". The rails have a full 10-3/4" x 3/8" steel liner and a zinc-coated anti-corrosion treatment, with aluminum crossmembers and heavy-duty iron front spring brackets. The end of the frame is square, with no crossmember, ready for a body builder crossmember, and has two Holland TH-10050 tow hooks. Up front is a PACCAR FX-20 wide-track steer axle rated at 20,000 lbs with a 4" drop. Steering is a Sheppard HD94 dual-gear power steering system with a frame-mounted reservoir and cooler. The front axle has PHP10 iron Preset+ hubs, Bendix ADB22X air disc brakes and greasable front spring pins. The payload's center of gravity must be located so the front steer axle carries no more than 23,000 lbs in site travel conditions. The rear axle is a 46,000 lb Dana Spicer D46-172 tandem with heavy-wall drive axles, a 4.10 ratio, a tandem differential lock with speed interlock, Bendix ADB22X air disc brakes and PHP10 iron Preset+ hubs. Three Watson-Chalin SL13 self-steering pusher axles are fitted, each component-rated at 13,500 lbs and each with its own air tank. They sit 48", 96" and 144" from the centerline of the forward drive axle and run on aluminum Preset+ hubs with cast drums. The pushers stow higher when lifted to maximize ground clearance, and their regulators are mounted to the frame with switches and gauges in the dash. The engineering-assigned ratings are an 85,000 lb GVWR, an 18,740 lb front GAWR, 11,020 lbs at the first intermediate axle, 23,000 lbs at the second intermediate axle and 23,000 lbs at the rear. Safety systems include 6S6M ABS, Bendix Smart ATC traction control, an SBM valve, a pneumatic park brake and a tire pressure monitoring system. Synthetic lubricant is used in all axles, and the maximum grade rating is 6%. Air equipment includes a heated Bendix AD-HF EP air dryer with a coalescing filter and extended purge, painted aluminum air tanks mounted high at the back of cab where possible, pull cords on all tanks and nylon chassis hose. Brakes are controlled by a dash-mounted, self-returning hand valve. A 110-gallon, 26" polished aluminum fuel tank sits under the left side of the cab with a polished non-slip step and polished straps. A small 14-gallon heavy-duty DEF tank is mounted behind the cab on the left side with a polished stainless cover. Body connections are at 5' behind the cab, and a 7-way socket at the end of the frame comes with 4' of additional coiled lines. Additional chassis equipment includes a polished, deep tapered aluminum bumper set forward, a heavy-duty external tow eye, a polished aluminum battery box above the rails behind the cab, and an aluminum non-slip cab entry step on the aftertreatment unit (right side, under the cab).

Suspension
The rear suspension is a Hendrickson HMX EX 460 HAULMAAX rated at 46,000 lbs, with a 54" axle spread, a 70K creep rating and a 17.5" saddle height. Up front are taper leaf springs rated at 20,000 lbs with Tenneco shocks and 60 mm front spring spacer blocks. The cab rides on its own air suspension.

Cab & Interior
The cab is a 121" BBC aluminum day cab with a Metton hood, a stainless steel crown and grille with tilt assist, a thermal insulation package and Prestige interior trim in Sterling Gray. The driver gets a Peterbilt LX Premium Level high-back air-ride seat in Mordura with left and right armrests. The passenger gets a Peterbilt ST high-back, non-adjustable, non-air-ride seat in Mordura with a left armrest and a toolbox underneath. Both seats are black. The multi-function steering wheel carries the Peterbilt logo and audio and cruise controls, on a tilt/telescoping column. Instrumentation is built around a 15" digital cluster that displays engine oil temperature, transmission oil temperature, air filter restriction, brake application air pressure, turbo boost and engine percent torque. Separate 52 mm backlit gauges show front and rear drive axle oil temperature, fuel filter restriction and the pressure for each of the three pusher axles. Three additional dash switches are wired in behind the dash. Comfort and convenience features include a combination fresh-air heater and air conditioner, power door locks and windows, dark window tint, a one-piece curved windshield, a fixed one-piece glass rear window, electric intermittent wipers, a rear-wall map pocket and a removable bugscreen behind the grille. Audio and communications include a ConcertClass AM/FM/WB radio with 3.5 mm aux input, a midlevel four-speaker package, Bluetooth phone and audio, a USB port, a Cobra 29 CB radio (without weatherband) mounted in the center of the header with a low-mount antenna on the left cowl, global telematics hardware and a 5-year SmartLinq RD subscription. Exterior cab equipment includes a stainless steel outside sunvisor, bright-finish aero mirror housings, Peterbilt aero mirrors that are motorized and heated with integrated convex lenses, a black-housing look-down mirror over the passenger door, two 23" round roof-mounted Peterbilt air horns, bright side-of-hood air intake bezels, 4.5" rubber fender lips and a textured, NFPA-compliant exterior grab handle. Chassis lighting includes projector headlights, fender-mounted and self-canceling turn signals, five LED bus bullet marker lights, two high inboard load lights behind the cab, and pre-wiring for fog lights, auxiliary lights and a beacon/strobe. Safety equipment includes a 107 dB backup alarm, a fire extinguisher outboard of the driver seat and a triangle reflector kit. The cab is finished in two-stage Axalta metallic/pearl Charcoal on the A-panel, fenders, hood top and cab roof, over a black frame.

Body & Equipment
The Heritage aluminum material hauler body measures 20' long and 96" wide. Its 54" sides, topped with a 6" board, are 3/16" aluminum in an enhanced finish, as are the side posts and dirt shedders. The sides carry a 9" extruded top rail and 2" x 6" sideboards on each side, painted to match the cab. The floor is 1/4" at the front and 3/8" over the last 120". It rests on 6" I-beam longsills with rubber cushion and 3-1/2" extruded boxed crossmembers on 12" centers, with a standard bottom rail with radius cleanouts. The bulkhead is a 3/16" radius design with a man door. There is no cab shield: the top of the bulkhead is squared off so the tarp mounts flush. The 60" tailgate is 1/4" thick with a 3" slope and two panels with horizontal bracing only. It has an overslung top hinge, tailgate chains, air controls, a center-mounted coal door and salt locks on each side. The hydraulic system uses a pin-to-pin telescopic front hoist driven by a Hotshift PTO for the Allison automatic, a direct-mount pump with a shifter valve, feathering-valve air control and a pump kickout switch. Controls for the body, strobes and tarp sit in a tower between the seats. Fluid comes from a 35-gallon upright aluminum tank behind the cab, through a 3-line system with shutoff valves, and dash lights show when the PTO is engaged and the body is up. The tarp is an Aero electric arm flip tarp in asphalt material, with the wind screen mounted flush with the front of the body, without expandable sides or a rear flap. Body lighting is an LED package. Combination stop/turn/tail lights sit in the rear posts, two front marker lights sit in front of the tarp wind screen, and extra marker lights run top and bottom on every post, front and rear. Strobes are mounted in front of the wind screen and in the side of the tarp square-off, plus one in each rear post. Round combination rear chassis lights sit in a plate, with an ID cluster on the hinge. Other body equipment includes a pull-out ladder below the bottom rail on the driver-side front panel and inside steps at the front only. A front shovel holder sits on the driver side, and an 8" bolt-on rear apron gives an approximate rear overhang of 12" of body plus 8" of apron. Heritage 30" front mud flaps have an anti-sail bracket ahead of the lift axle, and full-width Heritage rear flaps hang from hooks on straps with chains. The front of the body is squared, and body fenders are built to cover the lift axles. Side liners run full height over approximately the rear 48" of the body, with weld lines hidden behind the posts. An aluminum diamond-plate deckplate between the tank and body has an access step for reaching the man door. The body also has rear tow hooks, a body prop and a back-up alarm. The body is finished in an enhanced finish and washed before delivery.

Tires & Wheels
Front tires are 385/65R22.5 18-ply M864 on Accuride 29683SP 22.5x12.25 polished aluminum wheels with a 2.88" inset. The tandem drive runs eight 11R22.5 16-ply M863 tires on Accuride 40008SP 22.5x8.25 polished aluminum wheels. The three pusher axles run six 255/70R22.5 16-ply R250ED tires on Accuride 43644SP 22.5x8.25 polished aluminum wheels. Every position uses Accuride extra-polished wheels, with wheel guards on the steer, tandem and pusher axles.

Warranty & Protection
Peterbilt Class 8 Standard Coverage runs 1 year/100,000 miles (160,000 km). The base emissions warranty runs 5 years/100,000 miles.