One of the most common questions we get from mechanics, HVAC techs, and utility crews building out a new
service truck is simple: air compressor or generator — or both? The honest answer depends on what tools your
crew runs every day. At Star Truck Equipment in Wharton, TX, we
spec and install service bodies for trades
across Texas and Louisiana, and getting the power package right up front saves a costly retrofit later.
When an Air Compressor Makes Sense
If your crew runs impact wrenches, air ratchets, sandblasters, tire equipment, or pneumatic tools all day,
a truck-mounted air compressor is the better investment. Mechanics trucks and tire service rigs almost always
spec a PTO-driven or engine-mounted compressor with a wet tank plumbed straight into the service body
compartments, so air lines reach every side of the truck without dragging hose across the yard. Our
STI (Service Trucks International) mechanics
truck packages are built around this exact setup — compressor, tank, and reels integrated into the body
instead of bolted on as an afterthought.
When a Generator Makes Sense
Electricians, welders running wire-feed equipment, and crews that need to run lights, battery chargers, or
AC-powered tools in the field are usually better served by an onboard generator. A generator gives you
continuous 120V/240V power for corded tools, job site lighting, and diagnostic equipment that an air
compressor simply can’t provide. Generators mount well in a dedicated compartment on a
CM or Norstar flatbed or service body, with
weatherproof venting and a pull-out tray for easy maintenance access.
Can You Run Both?
Plenty of our customers do — a compact air compressor for pneumatic hand tools paired with a smaller
inverter generator for lights and chargers. The key is planning compartment layout and weight distribution
before the body goes on the chassis, not after. We work through this with every mechanics truck and utility
body build so both units get proper mounting, venting, and electrical routing.
Quick Comparison
- Air compressor — best for impact tools, tire work, sandblasting, pneumatic equipment
- Generator — best for corded tools, lighting, welding support, diagnostic equipment
- Both — common on full mechanics trucks that need to cover every tool type in the field
- Mounting — plan compartment space and weight distribution during the build, not after
Whether you land on an air compressor, a generator, or both, we’ll spec the
service body or
flatbed around the power package your crew
actually needs.
Get Your Service Truck Power Package Right
Star Truck Equipment builds mechanics trucks and service bodies for shops and fleets across Texas and
Louisiana from our shop in Wharton, TX. Call us at (979) 532-1486 or browse our
STI service bodies and
service body lineup to get started.
