Peterbilt heavy duty truck body

20 Series

custom Heavy duty truck body

Our largest custom heavy-duty truck body, the 20 Series, is the mobile mechanic’s dream.

Although we have never built two the same, we will fully equip your truck as needed to face your biggest jobs. Many of these truck bodies are designed for versatility, so mechanics can get any job done in the most remote work site.

The custom heavy-duty truck body is commonly mounted on a 60-66K GVWR tandem axle and can carry up to a 14K crane.

You will have the payload capacity and storage space to carry all the tools and equipment to the most remote job sites to finish any job safely in arduous conditions. For example, the 20 Series truck body can carry tools for complete repair work and lube equipment to perform preventative maintenance.


Summit truck bodies are engineered for strength and durability, built with premium materials and quality manufacturing.

300 cu ft of compartment storage configured to increase productivity.

Tool bumper with grip strut steps and grab handles for safe cargo access.

ASE integrated operating system for the safe and efficient control of crane, body, and chassis functions 

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20 Series

Common Applications

This 20 Series can be the ultimate workshop custom-designed for any industry application. We have equipped this body for forestry, mining, and heavy construction applications. Tailor the custom heavy duty truck body as a lube-service combo or for specialized work, such as line-boring.


  • Standard Body

    • 10 ga. galvannealed steel body construction
    • 1/8” aluminum bolt-on doors with an internal frame
    • Full-length piano-style aluminum hinges
    • Automotive-style bulb weather stripping 
    • Ergonomic three-point compression door latches keep compartments sealed tight.
    • Aluminum drip rail above compartment doors 
    • 3/16” diamond tread plate floor in the cargo area to reduce the risk of slips and falls. 
    • Swivel D-ring tie-downs flush-mounted on the cargo area walls
      • 6,000 lbs. Capacity
    • A fully integrated crane support structure 
    • Tool bumper with storage compartment
      • Integrated bumper steps with grip strut provide slip-resistant access to the cargo area.
      • 2.5” 18,000 lbs automotive-style receiver hitch
    • Infinitely adjustable compartment shelves with dividers
    • Bright polished knurled grab handles mounted on the rear side packs aid in safe three-point access to the cargo area.
    • 12” aluminum slam-style lockable tailgate
    • Torch bottle storage compartment 
      • Vented and reinforced floor 
      • Torch bottle retainer with ratchet straps
    • Reinforced welder riser mounting blocks on top of DS sidepack
    • Safety placards and decals
  • Paint & Protective Coatings

    • The three-step AkzoNobel paint process gives the body a high-quality image and durability. 
      • Phosphate wash, epoxy primer, and topcoat.
      • Five-year warranty against rust and corrosion
      • Endless color options 
    • Line-X protective coating applied to the cargo area, rear bumper, side pack front, top, rear, and the entire length of the bottom edge of the body provides long-lasting protection from harsh elements.
    • Rubberized undercoating applied to the entire underside of the body optimizes durability.
  • Electrical & Light Package

    • LED Light Package 
      • Grommeted and flush-mounted
      • Front and rear marker lights
      • Oval stop/tail/turn lights on the rear bumper and headache rack
      • Reverse lights on the rear bumper with a backup alarm
    • LED Rectangle work lights 
    • LED compartment strip lights
    • Control lights from the ASE main control panel, chassis cab panel, and crane remote
    • 7-way RV-style trailer plug
    • Control lights from control panels in the rear compartment and cab.
    • A weatherproof latching main body power panel is installed in the crane compartment.
      • Includes push-button panel to control crane, outriggers, and 12V body accessories, including lights
    • Electrical wiring harnesses feature Deutsch connectors and braided protective sleeves.
  • Tool Boxes

    • Summit designed and manufactured drawer packs.
    • .125” aluminum construction
    • Heavy-duty 600 lbs. slides fully extended.
    • Lock-in & lock-out slides.
    • Removable drawers.
    • Lock-in drawer dividers are standard, with optional egg crating.
    • Lockable single-action handle assembly.
    • Drawer depths of  3”, 5”, and 7” 
    • Custom widths from 12”-50”.
    • Custom riser heights.
    • An integrated top shelf with dividers.
    • Optional slide-out work tray.
    • Wrap or powder coat options add color & durability.
    • Cycle, load, shock, impact damage, incline, and vibration tested.
  • Hydraulic System

    • Open center fixed displacement gear pump.
    • PTO mounted to the transmission.
    • 32-gal hydraulic reservoir
  • Air Compressor Systems

    • Hydraulic-driven reciprocating or rotary screw air compressor
    • 40 CFM free air output at 100 psi
    • 175 psi max output (reciprocating)
    • 150 psi max output (rotary screw)  
    • Hannay ½” x 50’ HD spring rewind hose reel 
      • 50’ air hose terminated with ½” male NPT hose end
      • Payout door on the rear of the side pack

ASE Crane System

Our innovative Advanced Safety Electronics (ASE) Phase 4 control system has elevated jobsite safety and performance.

We’ve combined crane, body, and chassis operations with functional safety using a network of switches and sensors to communicate data. Advanced Safety Electronics reduces the risks of working in hazardous conditions, takes the guesswork out of crane operation with automated protection features, and gives you information to make safe decisions. Based on the robust J1939 Protocol, we can incorporate telematics data into your fleet management solution.

  • Increase OSHA Dart Rate and ROI
  • Operate and monitor the crane, outriggers, engine, PTO, air compressor, hydraulics, and lights.
  • Built-in safety features protect against jobsite hazards and ensure safe crane operation.
  • Operate and monitor the crane, outriggers, engine, PTO, air compressor, hydraulics, and lights.
  • Three control points: main control in the rear compartment, cab control panel, and wireless remote control
    Prevents crane functionality under unsafe operating conditions
  • Digital displays of real-time load moment indicator (LMI) data on the main panel and remote control.
  • Display alerts in easy-to-read text: e.g., oil temp, outriggers successfully deployed, crane overload, etc.
  • Standard on all hydraulic crane service trucks.

Learn more about  ASE

Crane control system in standard on Summit service trucks with hydraulic cranes.
Peterbilt service truck with sleeper cab

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