ProMaster Van Conversions
The widest interior of any van platform. Budget-friendlier entry point without sacrificing build quality.
The RAM ProMaster offers the widest interior of any full-size van — nearly 6 inches wider than the Sprinter. That extra width makes a real difference in layout options, especially for side-to-side bed configurations and larger kitchens. Paired with a lower purchase price and front-wheel drive, the ProMaster is an excellent choice for builders who want to maximize living space on a budget.
Why Build a ProMaster?
Widest Interior
At over 75" between the wheel wells, the ProMaster gives you room for layouts that just don't fit in narrower vans. Side-to-side beds, wider counters, more elbow room.
Lower Entry Price
ProMasters typically cost $5K-$15K less than equivalent Sprinters. That savings can go straight into the build.
Front-Wheel Drive
FWD means a flat cargo floor with no driveshaft hump to work around. Makes layout design simpler and more flexible.
Easy to Service
The Pentastar V6 gas engine is one of the most common engines in America. Parts are cheap, every shop knows it, and it's straightforward to maintain.
The Honest Take
Strengths
- + Widest interior of any van platform
- + Lower vehicle purchase price
- + Flat cargo floor (no driveshaft hump)
- + Common, affordable engine and parts
- + Front-wheel drive for easy maintenance
Things to Know
- ~ Lower ceiling height than Sprinter high-roof
- ~ Gas engine gets worse fuel economy than Sprinter diesel
- ~ Smaller aftermarket ecosystem than Sprinter
ProMaster Build Pricing
Package totals include labor and materials. Vehicle not included. Pricing reflects our Costa Mesa, CA shop rates.
Basic
$15K – $30K
Great starting point for weekend adventures. Core essentials with quality materials and clean execution.
Standard
$35K – $55K
Our most popular tier. Full-featured build with off-grid capability, quality appliances, and a layout designed around your lifestyle.
Premium
$60K – $100K+
No compromises. Top-tier components, custom cabinetry, full off-grid systems, and finishes that rival a high-end apartment.
Our Build Process
Consultation & Discovery
Tell us about your van, your plans, and your budget. We'll talk through options and give you a realistic picture of what's possible.
Design, Quoting & Planning
We'll put together a detailed build plan and quote broken down by system — no surprises, no hidden fees. You approve everything before we start.
Building
Once approved, your van goes into our Costa Mesa shop. We keep you updated throughout the build with photos and progress check-ins.
Systems Testing & Quality Check
Before handoff, we test every system — electrical, plumbing, appliances, ventilation, and fit & finish. Nothing leaves the shop without passing.
Walkthrough & Handoff
We walk you through every system, answer your questions, and hand you the keys to your new adventure rig.
Ready to Build Your ProMaster?
Tell us about your promaster project and we'll put together a detailed plan and quote.