For Sale: Custom 2021 Ram Promaster 3500 Off-Grid Camper Van – 159” EXT – Only 6,000 Miles
Step into full-time vanlife or elevate your weekend escapes with this meticulously built 2021 Ram Promaster 3500 159″ Extended camper van. With just 6,000 miles and a top-tier off-grid electrical system, this van blends rugged reliability, smart design, and modern comfort. No shortcuts taken — just high-end materials and meticulously installed systems designed for year-round travel and self-sufficiency.
Vehicle & Driving Features
- 2021 Ram Promaster 3500 | 159” Extended Wheelbase
- Only 6,000 miles
- Power folding & heated mirrors
- Swivel heated driver and passenger seats
- Overhead storage cubby
- Backup camera, cruise control, navigation, and remote start
- Factory windows (rear doors + sliding door)
- Arctic Tern dual-pane awning window w/ integrated blackout shades & screens
- Custom magnetic insulated window covers
- Trailer Hitch
- Sumo Springs front and rear
Electrical & Off-Grid Power
- 630Ah Lithionics lithium battery system with external BMS
- 3000W Victron inverter/charger
- 340W Zamp solar panels with Victron MPPT charge controller
- 50A Victron DC-to-DC charger
- Nations high-output alternator
- 30A shore power connection
- Blue Sea Systems:
- 8-position AC breaker panel
- 12-circuit DC fuse block
- Dimmable LED lighting throughout
Climate Control & Insulation
- Webasto gasoline air heater
- 12,000 BTU 12V DC rooftop air conditioner
- Maxxair roof fan
- Multi-layer insulation:
- 3/8” foil-laminated closed-cell foam
- 3M Thinsulate for sound and thermal insulation
Water & Plumbing
- 26-gallon fresh water tank
- 27-gallon gray water tank
- 12V water pump + pressurized accumulator tank
- 6-gallon Isotemp electric water heater with heat exchanger from engine coolant
- PEX plumbing throughout
- Heated outdoor shower at rear
Bathroom – Wet Bath Setup
- Thetford 3402C RV Cassette Toilet with:
- Push-button electric flush
- LED waste tank level indicator
- Integrated no-splash pour spout
- 5.1-gallon wheeled cassette tank
- Icon shower pan with removable Teak wood floor
- European-style shower valves + shut-off shower head
- Nautilus retractable shower door
- Enclosed dry toilet paper dispenser
Kitchen & Dining
- True Induction cooktop (single burner)
- 1.0 cu ft stainless steel microwave
- Large Ruvati stainless sink with integrated cutting board
- Pull-out sprayer faucet
- Vitrifrigo Slim refrigerator
- Removable Lagun table mount for dining or work
Interior & Build Quality
- Fixed twin beds (30” x 74” x 6” memory foam mattresses)
- Under-bed storage with easy access
- 80/20 T-slot aluminum framing for cabinetry
- Prefinished cabinet-grade maple fronts
- Full-extension drawer slides & gas strut supports on upper cabinets
- Foam-backed marine vinyl headliner
- Automotive tweed wall coverings
- LED reading lights & USB ports above each bed
- Mesh pockets for phone storage
Exterior
- 13’ manual Fiamma awning – durable and easy to deploy
- Sleek, stealthy, and adventure-ready profile
This van is designed for serious travel and comfort without compromising on utility or aesthetics. Ideal for someone who wants a truly turnkey off-grid rig with no corners cut. Ready for your next journey – whether it’s a national park tour, ski-season basecamp, or full-time living.
Clean title in hand. Serious inquiries only.