GoCode Overland

Meet the 20 Gallon Transit Undercarriage Tank (TR-UC-20) — the water storage you don’t see, but always need.

Tucks clean under your van on the driver side, keeping your interior wide open while adding 20 gallons of fresh or grey water.

Stealthy. Space-saving. Built to go wherever you do.

Big shoutout to our friends over at ! For full custom vans the Wanderful team has been building seriously dialed camper vans on Promaster, Sprinter, and Transit platforms.

What really stands out is how the Wanderful team meets people wherever they are in their vanlife journey—offering thoughtful guidance, smart designs, and vans that are built for real adventure from day one.
We love seeing how they bring their builds to life and help more people get out on the road with confidence.

Thanks for being a partner!

Meet the 19 Gallon Slim Dually Wheel Well Tank (SP-DU-19) - the smarter way to use every inch of your van. Built specifically for the Promaster, it tucks cleanly into that unused wheel well space so your layout stays wide open.

Slimmer than the 25-gallon, but still packs a serious 19 gallons where it counts.

More water. Zero compromise.

Big shoutout to our fellow mid western van builders and friends down at Moxie Van co in Chattanooga! These guys are always building some seriously beautiful custom rigs on Sprinter, Transit, and Promaster vans and even on specialty vehicles.

Most importantly, the Moxie team designs vans with each individual customer in mind and it shows in the quality of their work.

We love seeing how they use GoCode, Tetravan, Grover, and Northwest within their builds!

Thanks for being a partner !

Meet the 28 Gallon Promaster Wheel Well Tank (PM-C-28) — proof that the best storage in your van is the space you didn’t think you had.
Turns empty wheel well space into 28 gallons of fresh water without stealing any living room.
Fits Promaster builds and works in Sprinter and Transit setups too.
More water. Same space. Smarter build.

Big thanks to in Bend, Oregon for incorporating our products—most notably our full interior trim kits—into their builds!

The Swell Vans crew knows vans because they’ve lived it. Years of backpacking, car camping, and traveling the country in vans has shaped how they design products and conversions for real-world use. Their mission is simple: help more people get on the road with thoughtful DIY kits and beautifully built vans.

We’re grateful to play a part in the rigs they’re building. If you’re in Bend, Oregon and thinking about vanlife, the Swell team is a great group to know. Seth and his team will consult you on the best dos and don’t for your build!

Water Tank of the Week 💧
This week we’re highlighting the 20 Gallon Wheel Well Tank (SP-R-20) — a smart way to turn wasted space around your wheel well into usable water storage.
Designed for Sprinter 2500, T1N, and Transit single-rear-wheel vans, this tank fits tight to the wheel well while leaving room for insulation in Transit builds. It can mount on either side depending on your layout, giving builders flexibility without sacrificing capacity.

is a custom van builder based in Golden, CO crafting truly epic, full-custom rigs built for the mountains.

We’re grateful they trust our Transit Front Kit, water tanks, and Tetravan Folding Shower in their builds — two products designed to maximize space, durability, and real-world adventure.

If you’re in Colorado and looking for a high-end custom builder, you’ll be in very good hands.

💧 Water Tank of the Week: 33 Gallon Wheel Well Tank (SP-L-33)
Built for builders who refuse to waste space.
This 33-gallon wheel well tank is designed specifically for the Mercedes Sprinter 2500, while also fitting T1N and Transit single rear wheel vans. It tucks cleanly around the wheel well—turning dead space into serious water capacity without eating up your layout.
Why we love it:
• Massive 33-gallon capacity in a low-profile footprint
• Smart port layout (multiple 1.5” + 1/2” NPT options for flexible plumbing)
• Top port for fill or level sensor
• BPA-free, food-grade plastic
• Made in the USA 🇺🇸
• Designed to be properly vented (not pressurized)
Transit vans get a little extra room for insulation. ProMaster? Just elevate 3.5” and you’re set.
If you’re building for long off-grid stretches, this is the tank that changes the game.