Big Bear Vans
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Signature Layout
Santa Monica Sprinter 144 Walnut
Wheelbase
144
Sits / Sleeps
4 / 4
Drivetrain
4WD
Base Vehicle
Mercedes-Benz Sprinter
The Design Philosophy
Build Overview
"Designed specifically for active families, this 4-season off-grid camper van packs seating for 6 and sleeping for 5 into a maneuverable 144" AWD Sprinter footprint. Grounded in warm natural tones, it combines grooved light plywood wall paneling, a crisp off-white ceiling, and rounded bamboo countertops with practical Deep Sea Blue lower cabinetry. Featuring an expandable elevator bed paired with a 68" lower dinette bunk, full standing wet bath, and high-capacity electrical and heating systems, it delivers complete full-time living comfort without sacrificing space."
Standard Features
INSULATION & PANELING
- • ✓ 4-Season Insulation with custom-grooved light plywood wall paneling — Warm, natural wood grain finish paired with white window and bump-out trims.
- • ✓ Grooved ultralight ceiling paneling in Off-White — Bright ceiling finish designed to open up the visual vertical space indoors.
- • ✓ Aquaguard Copper Peak Waterproof Laminate flooring — Durable, light-toned waterproof flooring that withstands heavy foot traffic and outdoor dirt.
- • ✓ Paneled rear & sliding door covers with storage cubbies — Insulated door covers with integrated storage compartments where windows are omitted.
- • ✓ Over-cab White Top Adventures shelf with L-tracks — Features a 180° flexible curtain rod with full blackout curtains for privacy and extra storage space.
BATHROOM
- • Standard aluminum bathroom — 25" x 28" in sleek matte black finish.
- • Cassette toilet system — Thetford C223CS RV Cassette Toilet, easily emptied from the exterior.
- • Full-standing shower with RecPro rolling door — Features a water-saving on/off stop button shower head to conserve fresh water.
- • Shower wall equipment storage — Integrated L-tracks and heavy-duty straps on the exterior shower wall specifically designed to lock down skis, snowboards, and sports gear during transit.
- • Removable interior shelving — Includes TWO removable plywood shelves inside the shower for organized toiletry storage.
WATER SYSTEM
- • 30-Gallon fresh water tank — Dedicated fresh water capacity optimized for off-grid family use.
- • 20-Gallon under-mount grey water tank — Fitted with an easy-access dump valve for clean waste disposal.
- • 12V water pump & PEX-A plumbing — Reliable water pressure supplied across kitchen and shower faucets.
- • Outdoor rear shower — Hot and cold water sprayer to rinse off gear, pets, or sand before stepping inside.
- • Exterior water fill inlet — Convenient external refill port.
KITCHEN
- • Rounded Bamboo-countertop base cabinets in Deep Sea Blue — Scratch-resistant blue lower cabinetry paired with warm, rounded-edge bamboo countertops and matching wooden backsplash.
- • Upper wall cabinets with RV-latch closures — Clean white upper wall cabinets with secure latch closures.
- • Deep undermount sink with bamboo insert & cover — Flush-fitting bamboo sink cover extends usable counter workspace.
- • Under-sink water filter system — Dedicated water filtration for drinking and cooking.
- • Portable single induction cooktop — Clean, flame-free indoor cooking solution stored easily in cabinets.
- • 12V fridge/freezer, 3.3 cu ft — Compact, energy-efficient refrigeration.
- • Pop-up countertop extension & 3-tier pull-out pantry — Added prep space paired with an organized pull-out pantry.
- • Vampire's Outlet Swivel Table — Heavy-duty removable swivel table for dining or study in the dinette area.
ELECTRICAL SYSTEM
- • 1200 Amp-Hour LiFePO4 Battery Bank (15,600 Wh) — High-capacity lithium setup capable of running the 12V A/C overnight off-grid.
- • Pure Sine Wave Inverter & Victron DC-DC Charger — Charges at 50A/hr directly from the main alternator while driving.
- • Nations 2nd Alternator Upgrade — High-output secondary alternator delivering up to 300A/hr total charging speed to fully charge the battery bank in ~4 hours.
- • 400W Roof Solar Panel Array — Continuous solar replenishment while parked or driving.
- • Multi-zone touchscreen control panel — Centralized command center for interior lighting, power monitoring, and tank levels.
- • Multi-zone LED lighting package — Integrated ceiling recessed lights, under-cabinet lighting, side-shower vertical LED planks, reading lights with USB, and bump-out ambient lighting.
- • 30 Amp shore power inlet — Plug-and-play campground connection.
HEATING, COOLING & VENTILATION
- • Flush 12V rooftop A/C with custom black cover — High-efficiency, ultra-quiet rooftop A/C positioned near the shower/sleeping area.
- • Diesel glycol advanced water & air heater — Directly tapped to the vehicle fuel tank; provides instant, unlimited hot water and targeted air heating near the rear doors to eliminate cold drafts.
- • 12V roof fan with extended body "tail" — Multi-speed intake/exhaust fan with extended rain protection cover, allowing operation while driving or in wet weather.
SLEEPING & INTERIOR
- • Expandable Electric Elevator Bed (Full Upper Bunk) — Features 4-side safety stoppers, white under-bed cover, integrated reading lights, and side wall niches for full-length sleeping space.
- • Convertible Dinette to Lower Bunk (68" Length) — Custom 4" high-tension foam cushions transform the dual storage benches into a firm 68-inch lower full bed for kids or guests.
- • Seating for 6 / Belts for 6 — Equipped with cab swivel seating, a Vankea double bench seat, plus two custom extra passenger seatbelts.
- • Diamond-cut tree leaf partition walls — Decorative white partition walls holding the elevator bed tracks while defining the rear bedroom zone.
WINDOWS & BUMPOUTS
- • XL Double-Glazed Awning Bump-out Windows — Largest opening bump-out windows available; features wide-opening locks, ventilation cracks, built-in blackout shades, integrated insect screens, and double-paned insulation with an OEM automotive glass outer finish.
- • Solid glass sliding door window & 50x50 cm awning driver-side window — Natural light and cross-ventilation throughout the main living room.
EXTERIOR & ADD-ONS
- • Extra-wide roof rack with deck area & wind fairing — Fitted with T-slot crossbars, central roof decking area, and pre-wiring for a front dashboard-switched light bar.
- • Electric awning with wind sensor — Motorized shade awning with automatic retraction in high winds.
- • Owl Outdoor rear tire carrier & side ladder — Rear-door spare tire mount and side ladder for roof access.
- • Owl Outdoor Mondo Mudguard big tire kit — Upgraded wheel clearance for off-road durability.
- • Integrated under-hood air compressor — On-board air system for airing up tires after off-road excursions.