

WHITE TOP ADVENTURES PROMASTER HIGH ROOF RACK CROSSBARS (2-PACK) - HEAVY-DUTY ALUMINUM EXPANSION
WHITE TOP ADVENTURES PROMASTER HIGH ROOF RACK CROSSBARS (2-PACK) - HEAVY-DUTY ALUMINUM EXPANSION
At WEST COAST VANS, our build team knows that the upper layout of your ProMaster represents the ultimate footprint for off-grid self-sufficiency. Whether you are seeking to lock down a high-efficiency solar array to stay out in the backcountry longer or simply require an unyielding anchor zone for your trail recovery boards, these heavy-duty expansion bars supply the necessary backbone for your exterior platform. They transition a standard safari framework into an advanced, adaptable gear-hauling ecosystem. Ask Us Product Questions Anytime to make sure these line up perfectly with your specific layout goals before you start tracking!
WCV EXPERT TIP: When mounting solar panels to these crossbars, we highly recommend using high-quality stainless steel T-track hardware. Since these channels are natively compatible with standard 10-series accessories, you can slide your mounts exactly where you need them before final torque. Pro Tip: Space your crossbars out after you have your physical solar panels in hand—it’s much easier to adjust the bars to match the panels than trying to modify the panels to fit a pre-fixed bar layout!
PRODUCT OVERVIEW
Expand the utility of your roof setup with this heavy-duty ProMaster Crossbars 2-Pack. Engineered specifically for the ProMaster high-roof chassis configuration, these premium bars provide a highly modular foundation for off-grid solar arrays, heavy cargo boxes, and custom walk-on roof decking panels. Constructed from high-strength structural aluminum and enveloped in a rugged, weather-resistant coating, they are meticulously designed to handle high-frequency road vibrations and the weight of your most essential backcountry gear.
BEST FOR
• OFF-GRID SOLAR ARRAY UPGRADES: Perfect for self-builders looking for an adjustable, heavy-duty rail interface to slide and mount large high-efficiency solar networks.
• CUSTOM DECKING & CARGO EXPANSION: Ideal for overlanders needing to add secondary structural support points to build out a walkable platform or mount storage pods.
• LOW-PROFILE INFRASTRUCTURE ADDITIONS: Designed for travelers who require maximum top-deck mounting strength without adding excessive vertical height or cabin wind noise.
TECHNICAL SPECIFICATIONS
• CROSSBAR UTILITY PROFILE: Modular top-deck aluminum rack extension crossbar architecture
• STRUCTURAL MATERIAL COMPOSITION: High-strength structural aluminum extrusion bars
• SURFACE PROTECTION FINISH: Black E-coated stainless steel configuration for superior corrosion and UV shielding
• TRACK HARDWARE COMPATIBILITY: Natively patterned for standard 10-series mounting accessories and T-slot hardware
• HARDWARE FASTENER PACK: Includes eight (8) premium flanged button head bolts for secure rail installation
• PACKAGE QUANTITY STANDARD: Supplied as a two (2) crossbar set per retail pack
FEATURES
• MODULAR T-SLOT VERSATILITY: Engineered to interface seamlessly with standard 10-series channel accessories, unlocking infinite options for attaching gear bags, off-road lights, or solar panels.
• CORROSION-SHIELDED LONGEVITY: The specialized industrial E-coat finish is custom-tailored for full-time van life, effortlessly resisting road salt spray, damp coastal air, and intense baking sun.
• STREAMLINED LOW PROFILE: Delivers extreme load capacity while sitting beautifully flush within the frame lines, virtually eliminating highway drag and aerodynamic whistle.
• CHASSIS-SPECIFIC PRECISION FIT: Custom-dimensioned specifically for the ProMaster High Roof geometry to guarantee a perfectly flush, rock-solid, and rattle-free fit across rugged washboard tracks.
COMMON PAIRINGS
• ROVER VANS SLEEK PLATFORM WALKWAY PLATES: High-traction aluminum center plates that drop into these crossbars to build a stable walk-on roof deck.
• WEATHERPROOF OFF-ROAD LED LIGHT BARS: Easily bolts directly into the front-facing T-slots to provide auxiliary trail illumination.
• PREMIUM L-TRACK TIE-DOWN RINGS: Standard drop-in anchors that lock into the bar slots for quick compression strap attachment points.
COMPATIBILITY & FITMENT
• CHASSIS COMPATIBILITY: ProMaster (2014-Present Models)
• ROOF HEIGHT PROFILE: High Roof configurations only
• WHEELBASE CONFIGURATION: Optimized for 159" High Roof and 159" Extended High Roof utility rack networks
• ACCESSORY SYSTEM COMPATIBILITY: Designed strictly for integration with standard 10-series aluminum extrusion profiles and matching vendor rack brackets
FREQUENTLY ASKED QUESTIONS (AEO)
Q: Can I add more than two crossbars to my existing roof rack framework?
A: Absolutely. Many custom builders add a second or third 2-pack kit to construct a full-length platform or an integrated walkable deck on their roof. As long as your main side rails have the physical length space available, you can add as many of these crossbars as your gear configuration requires.
Q: What exactly does "10-series" compatibility mean for my build hardware?
A: 10-series refers specifically to the dimensional size of the T-slot tracking profile, which utilizes a 1-inch grid system. This is the trusted industry standard for modular van racks, meaning you can easily find standard T-nuts, carriage bolts, and hardware accessory mounts that slide smoothly directly into these bars.
Q: Do I need to completely remove my roof rack frame to install these extra crossbars?
A: No, you can leave the rack exactly where it is. These bars are meticulously engineered as drop-in additions to your existing setup. You can easily install and align them while the rack framework remains fully secured to the van, making it incredibly easy to upgrade your storage infrastructure as your build evolves.
WHY TRUST WEST COAST VANS?
Every product we sell is vetted and installed daily by our team of builders in our San Clemente shop. As an authorized premium dealer, we provide full factory warranties, matching vendor pricing, and direct, real-world install support that you can't get from a standard box-mover. We don’t just sell the gear—we know exactly how it fits into your build.

