Built to Conquer. Built to Last. That isn't a slogan we hang on the wall. It's the standard every Summit gets measured against before it leaves the shop.
The Summit is OEV's chassis-mounted, hard-side expedition camper, a full expedition vehicle built on a Ford F550 or Ram 5500. A 13-foot full-standing cabin, a real wet bath, an over-cab bedroom, and enough power and water to stay out for weeks. The surprising part is what it doesn't carry: the weight.
Heavier Was Never Stronger
Somewhere along the way, the expedition world decided that tough meant heavy. Steel boxes, thick everything, and a curb weight that eats your payload before you've packed a single bag.
Weight is where these rigs get into trouble. Across the segment, the heaviest builds are the hardest on the truck under them. Frames flex, chassis take a pounding, and structure that looked overbuilt on paper works loose on the trail. Once a camper pushes the truck past its limits, every mile is a fight with physics.
OEV builds the other direction. The Summit comes in under 7,000 lb dry and keeps the complete rig under 16,000 lb combined. That isn't a stripped-down number. That's fully equipped, with the solar, the batteries, the bath, and the bed all on board.
Two things come out of that. You keep real headroom under your GVWR, so the truck isn't maxed out before you load gear, water, and people. And the whole rig stays light enough to drive like the heavy-duty truck it's built on, not a commercial-scale vehicle you have to relearn.
How This Expedition Camper Stays Light and Strong
Light and strong usually pull against each other. The Summit gets both from the way it's built, not from what it leaves out.
The cabin is OEV's Gen 4 composite panels, 2 inches thick on every wall, the roof, and the sub-floor, with an R10-plus insulation rating. A 6063 powder-coated aluminum exoskeleton carries the load, and a multi-point isolated kinetic mounting system lets the cabin and the chassis move without beating on each other.
Here's the part that matters for the long haul: there's no wood in the structure. No framing that soaks up moisture and rots. No particle board that crumbles under years of vibration. Everything structural is aluminum and composite, the materials that don't quit. That's how a Summit is built to outlast the truck it's mounted on.
Everything Is Included
Plenty of campers advertise a low number and hand you a long list to reach anything usable. The Summit works the other way. What you see on the Summit page is what's included.
Two features other builders sell as pricey upgrades come standard on every Summit:
- Cab pass-through that lets you step from the cabin straight into the truck cab, through an insulated vinyl door with all the metal work done right
- North/south queen bed, a full over-cab queen with bedside wardrobes and LED lighting
Power and climate. A 1,320W solar array on six panels, twin Victron MPPT controllers, a 310 Ah Lithionics lithium battery, a 3,000W Victron Multiplus inverter/charger, and a Cerbo GX to run it all. An 8,188 BTU Nomadic 12V air conditioner, a Timberline air heater, and on-demand hot water. You're set up to live off-grid, not just park off-grid.
Water and bath. Two 38-gallon freshwater tanks, a full wet bath with teak grate and fixtures, Guzzle H2O purification, and a plug-in exterior shower.
Galley and living. A 160L Isotherm drawer fridge, a dual-burner induction cooktop, a stainless marine sink, sealed bamboo countertops, and a U-shaped dinette that converts to a second sleeping area. Up top, a north/south queen bed with bedside wardrobes and LED lighting.
Built for the trail. The cab pass-through, an integrated hydraulic tire carrier with a military-grade wheel, a heavy-duty rear bumper, six exterior aluminum storage cabinets, auto-deploy stairs, a fold-up rear ladder, and an ARB air compressor. Standard.
That's a rig you could drive off the lot and live in. The options are about fit, not filling gaps.
Make It Yours
Once the essentials are handled, the choices are the fun ones:
- More power: up to two 320Ah GTX batteries on top of the standard bank
- Toilet setup: Thetford cassette, Trekker or Clesana C1 waterless, or a Nature's Head composting toilet
- Storage: a rear cabin garage with locking cargo doors, or a second marine glass roof hatch
- Connectivity: a Starlink mount and a WeBoost cell booster
- Recovery and chassis: front and rear Warn winches, a front bumper with cube lights, N-Fab steps, and LED rock lighting
- Suspension: BuckStop Stage 3 kits for Ram or Ford, with a Continental tire upgrade
- Shade and light: Fiamma or AluCab awnings and an OEV off-road light bar
- Interior: cushion colors to set the tone inside
Configure Your Summit
Start from a fully equipped Summit and make it your own. Choose your power, storage, suspension, and finish, and watch the price update as you go.
The Expedition Vehicle Value Nobody Talks About
A turn-key expedition camper of this size and capability usually comes with a turn-key price to match. The Summit starts at $275,670 for the camper. Add your F550 or Ram 5500 chassis, and the complete rig still lands well under what a comparable expedition vehicle runs. It does it while weighing less and leaving you more payload.
Lighter, stronger, fully equipped, and priced under the field. That's not a trade-off. That's the whole idea.
Built to Conquer. Built to Last.
The Summit is what happens when you refuse to accept that big has to mean heavy, and heavy has to mean fragile. It's engineered to stay under your GVWR and outlast your truck, and it's built to go wherever you point it.
Build yours in the Summit configurator, take a closer look on the Summit page, or reach out to the OEV team to walk through the spec sheet together.