• Chassis: GMC 3500
• Conversion: Command Vehicle Upfit
• Body Style: MARC Body (Modular, Aluminum, Remountable, Command)

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MARC Body Overview

• 6-door MARC command body with multi-compartment design
• Large flip-up doors with gas struts and slam latches for easy access
• Adjustable aluminum shelving throughout compartments
• Rear Communications Control Center (RCC) for incident coordination
• Slide-out command drawer with flip-up work surface
• Additional slide-out and pull-out storage components
• SCBA storage and cylinder/extinguisher compartment solutions
• Dry-erase interior surfaces for on-scene planning and communication
• Durable, lightweight construction with corrosion-resistant materials
• Body painted to match chassis for a clean, integrated appearance

• 200W dual-function siren with detachable mic
• Dual 100W speakers
• Programmable tones including Powercall

• FastPlex multiplex electrical control system
• Touchscreen interface with programmable controls
• Shoreline auto-eject (20A)
• Onboard battery charger
• 1000W inverter for 110V power
• Multiple 12V auxiliary power outlets

• Reflective vinyl graphics and lettering
• “Winchester Fire & Rescue” identification
• Battalion markings
• Custom department decals and striping
• Full rear chevron
• Multiple 12V auxiliary power outlets

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Departments across the country choose the GMC equipped with the MARC body for its unmatched combination of durability, versatility, and job-ready performance. Built to handle demanding workloads, the GMC 3500 delivers proven reliability, strong towing capability, and consistent performance across a variety of applications. Paired with the MARC utility body, crews benefit from enhanced organization and efficiency thanks to secure storage, customizable compartments, and rugged construction designed for daily use. In addition, the MARC body is chassis-agnostic, allowing it to be remounted onto a new truck when it’s time to replace the vehicle—helping fleets reduce long-term costs and maximize asset lifespan. This powerful combination enables departments to boost productivity, minimize downtime, and protect their investment, making the GMC 3500 with a MARC body a smart, cost-effective solution for modern fleet operations.

The GMC 3500 paired with a MARC utility body is an ideal solution for fire and EMS agencies that require a dependable, highly organized, and cost-efficient support vehicle capable of handling demanding emergency operations. With its durable chassis, strong towing and payload capabilities, and the versatility of a chassis-agnostic MARC body that can be remounted to extend fleet life, this setup supports rapid response, equipment readiness, and long-term value. Agencies that rely on mobile crews, specialized rescue tools, and secure, accessible storage benefit most from this combination, making it a practical and scalable choice for modern fire and EMS fleet operations.