Most fleets don’t need more equipment — they need less.

They need smarter upfits that reduce weight, open bed space, and boost uptime — without adding complexity or cost.

That’s exactly what Vaniar PTO Shaft-Driven Underdeck ALL-IN-ONE Power System® is built for.

In this breakdown, I’ll show you how it replaces six separate machines with one underdeck install, which exclusive innovations keep it running under pressure, and what fleet managers need to know before their next spec.

See the Full System Breakdown →

Request Quote →

Find a Vanair® Dealer Near You →

Award-Winning Innovation

UPFIT PICK

Let’s say you’re spec’ing a new tire service truck.

Here’s what that usually looks like:

• Compressor bolted on

• Generator eating bed space

• Portable welder strapped down

• Battery booster buried under shelves

• Charger tucked in a side box

• Hydraulic system crammed between it all

Six machines.

2,000 lbs.

Cluttered bed.

Blocked hitch.

And six new points of failure.

Now imagine all that — powered by PTO, mounted under the truck.

That’s the Vanair® PTO Shaft-Driven Underdeck ALL-IN-ONE Power System®. 

You get your bed back. Your techs move faster. Your truck weighs less and lasts longer.

MAIN BUILD

Upfitters and fleet buyers have been doing it the same way for years: bolt on power one system at a time. But each new add-on creates weight, wiring, vibration, and maintenance challenges.

That complexity adds up — fast.

And it often leads to trucks that:

• Exceed GVWR limits

• Burn fuel faster

• Require constant attention from the shop

• Create downtime in the middle of peak season

• Lose resale value due to cluttered, worn-out bed space

Vanair® flips that model.

Instead of stacking systems like it’s 2005, they offer one integrated platform that rides under the truck and powers everything from a single PTO.

What It Replaces:

• 125–185 CFM rotary screw air compressor

• Peak 10kW generator

• 330A welder

• 12V/24V battery boosting (optional 36V/48V)

• 12V/24V charging (optional 36V/48V)

• Up to 30 GPM @ 2,000 PSI hydraulic-driven power

This is not a modular bolt-on bundle.

It’s a full-spec, underdeck system powered from one PTO — with all systems engineered to work together and live under the body.

No more losing tool drawers.

No more relocating tanks.

No more cutting holes in fenders to make room.

Installation: Cleaner, Faster, and Smarter

Most upfit timelines stretch because the truck becomes a puzzle:

• The welder needs fuel

• The compressor needs space

• The booster needs to be accessible

• The generator has to be vented

All of that eats labor hours, drives up costs, and increases failure points post-delivery.

With Vanair’s system, everything is mounted under the truck and draws from a shared drive source — simplifying:

• Mounting time

• Wiring harnesses

• Hydraulic lines

• Fuel routing

• PTO configuration

Result: Faster builds, fewer headaches, and a cleaner final product your techs can trust.

EXCLUSIVE VANAIR TECH

Each of these patented or patent-pending innovations was designed to fix a real-world failure point in traditional bolt-on systems.

FailSafe® Dual Sensor Redundancy System

Most systems shut down when a single sensor fails. This one doesn’t.

FailSafe® adds a backup layer that keeps your truck working when things go wrong — no limp mode, no tow-ins, no lost revenue.

Presented by Donnie Stone

ThermalGuard® Weather Protection Kit

Built for harsh winters:

• Prevents regulator freeze-ups

• Reduces startup torque (less PTO strain in cold weather)

• Eliminates internal moisture, which can damage components

XERO® Rapid Blow Down Tank

Most air tanks require long depressurization cycles.

The XERO® Tank cuts restart time to nearly zero — and reduces leak points by 60%.

Cut downtime with XERO® Tank →

UltraLife® 6000 Hour Air/Oil Separator

Standard filters are the silent killer in most systems. Vanair’s UltraLife® lasts 15x longer.

• Fewer replacements

• Lower consumable costs

• Less downtime

• Consistent output pressure

Explore UltraLife® tech →

REAL USE CASES (BY INDUSTRY)

This isn’t a showpiece — it’s being spec’d by fleets across critical industries that rely on uptime.

Tire Service Trucks

Replaces portable welders, jump packs, and tow-behinds. No trailers. No bed loss. Full capability in one truck.

Utility & Municipal Fleets

More room for bins, cones, racks. Keeps equipment off the bed. Helps hit weight targets without sacrificing power.

Paint Stripers & Air Excavation

Need CFM and hydraulics — fast. This system delivers both without eating bed or frame space.

Contractors & Mobile Techs

If your tech is the shop, this gives them six systems in one — and saves the bed for tools, not equipment.

Six Things to Remember:

1. Replaces six machines with one

2. Saves up to 2,000 lbs — per Vanair's own testing

3. All mounts under the truck — not in the bed

4. Built-in FailSafe®, ThermalGuard®, XERO®, and UltraLife®

5. Keeps your crew working in tough conditions

6. Simplifies upfit, ownership, and maintenance

WRAP-UP

Old-school specs stack on more.
Smart fleets spec for less — less weight, less failure, less complexity.

With Vanair’s ALL-IN-ONE Underdeck Power System, you get:

• No trailers

• No bolt-ons

• No wasted space

Just one clean install — that powers everything.

Don’t Miss Out — Founding Membership Is Almost Full

Only the first 100 get it for $5/month. After that? It jumps to $15.

Want exclusive access to expert breakdowns like this?

Become a Founding Member of The Upfit Insider Premium and lock in:

✅ Early access to every new article
✅ Expert guides (like Snowplow Mastery)
✅ Zero-fluff insights on work truck specs, upfitting, and fleet strategy

⚠️ Once we hit 100 members, the paywall goes up — and future articles will be premium-only.

🎯 Join Now for $5 →

—
Leyhan
Founder, The Upfit Insider