The GH-5 Grand Hauler

A fully custom luxury conversion built on the Peterbilt 589 — the new standard in heavy duty trucks.

GH-5 Grand Hauler — front three-quarter exterior

What Is the GH-5?

The GH-5 Grand Hauler begins life as a Peterbilt 589 — one of the most capable, reliable, and iconic Class 8 platforms ever built. Semi Casual Custom Trucks then transforms it into something the industry has never seen: a full luxury conversion that doesn't ask you to choose between power and comfort.

Whether you're towing a horse trailer, a fifth-wheel, or heading to the next truck show, the GH-5 gets you there in a cabin that feels more like a high-end SUV than a semi. Every truck is built to order, and no two are the same.

Stand Out. Haul More. Travel Better.

The GH-5 is not a production truck — it's a bespoke build. Custom paint, custom interior, and a specification sheet you help write. Contact us to start your build.

Standard Equipment

  Interior & Comfort

  • Rear air conditioning
  • Premium leather accents throughout
  • Built-in refrigerator
  • Premium sound system
  • USB & USB-C charging ports
  • Dual 110V power outlets
  • Spacious storage compartments
  • Apple CarPlay touchscreen radio with navigation
  • Premium carpet floor mats
  • Power door lock and keyless entry
  • Smart Sound insulation package

  Performance & Drivetrain

  • Cummins X15 engine (see engine options below)
  • 18-speed or 12-speed automated transmission (engine-dependent)
  • Up to 240-gallon fuel capacity
  • High-performance cooling system
  • Davco fuel filter system
  • Larger 37.5 air compressor
  • 3.42 rear end ratio
  • HD 1810 driveline

  Towing & Work Features

  • 7-way electric brake plug with integrated brake controller
  • B&W hideaway gooseneck hitch system
  • Power windows, locks, and mirrors
  • Battery disconnect

  Suspension & Braking

  • Front suspension: Peterbilt air leaf — 13,200 lbs
  • Rear suspension: Rayco 23,000 lbs air ride
  • Front brakes: Air disc
  • Rear brakes: Air drum
  • Advanced ABS braking system
  • Zinc coated frame rails
  • Aluminum crossmembers

  Other Standard Equipment

  • Air horn & electric city horn

Engine Options

All GH-5 builds are powered by the Cummins X15 — a proven workhorse that delivers best-in-class power, efficiency, and reliability for the long haul.

Options & Upgrades

Every GH-5 is a blank canvas. Below are some of the most popular options and upgrades — but if you have something specific in mind, ask us. We build custom.

  • Custom paint (single color, two-tone, or specialty finishes)
  • Chrome exhaust stacks
  • Windshield visors
  • Custom front and rear bumpers
  • Custom fender packages
  • Specialty lighting packages (exterior & interior)
  • Multi-camera system
  • Additional audio and technology upgrades

Photo Gallery

Click any photo to view full size.

GH-5 exterior — front three-quarter GH-5 exterior — side profile GH-5 exterior — rear three-quarter GH-5 exterior — rear fender and wheel detail GH-5 interior — driver's cabin GH-5 interior — full rear cabin seating GH-5 interior — rear bench seating GH-5 interior — rear seat backs GH-5 interior — center console and armrests GH-5 interior — floor detail with Peterbilt emblem GH-5 interior — overhead console and controls GH-5 interior — audio and climate control overhead

Ready to Start Your Build?

Every GH-5 is built to order. Let's talk about your vision — engine, interior, options, and timeline. We'll walk you through every step of the process.

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