VWD Overlander Half-Slider Van Bunk Window (35-5/16" x 11-3/16") | OVR3310
VWD Overlander Series Half-Slider Van Bunk Window – Universal Fit (OVR3310)
The OVR3310 is designed for builders who want flexibility without compromising finish quality. Unlike vehicle-specific windows, this bunk window installs on either the driver or passenger side and fits nearly any van platform based on measurements rather than model year.
It works across Sprinter, Transit, ProMaster, Express, Savana, Econoline and custom builds, making it a dependable standard size used throughout the van conversion industry.
Universal Fit Advantage
- Install on driver or passenger side
- No vehicle-specific stamping required
- Works across most van platforms
- Ideal for DIY and professional conversions
Universal windows allow the interior layout to determine placement instead of factory body stampings.
Why This Size Is So Widely Used
Bunk windows are meant to ventilate the sleeping area, not the entire van. A smaller opening near occupants moves air more effectively than a large distant window.
- Ventilation near bedding
- Helps reduce overnight condensation
- Works with roof fan airflow
- Maintains usable wall space
Half-Slider Ventilation
- Smooth adjustable sliding panel
- Integrated bug screen
- Controlled airflow without large opening
- Built-in drainage channels
Glass & Comfort
- Solar Privacy Glass
- Solar privacy glass
- Maintains daytime privacy
- Allows natural light into the sleeping area
Clamp Ring Installation
The clamp-ring system compresses the seal around the cutout creating a weather-resistant installation without welding.
- 3M foam seal included
- No permanent bonding required
- Serviceable installation
Measurements
| Outer Dimensions | 35-5/16" x 11-3/16" |
|---|---|
| Cut-Out Dimensions | 33" x 10" |
| Vent Opening | 14-15/16" x 7-9/16" |
| Clamp Ring Wall Depth | 1/8" |
Best Installation Locations
- Bed platforms
- Cabinet adjacent walls
- Rear sleeping areas
- Custom layouts and flares
FAQ
Which side does this window fit?
It installs on either the driver or passenger side.
Is a universal window harder to install?
No. Installation follows standard clamp-ring procedures using the provided dimensions.
Does a small bunk window provide enough airflow?
Yes. Airflow near occupants is often more effective than larger distant openings.
Will it work with a roof fan?
Yes. It can function as intake or assist exhaust airflow depending on placement.
Installation & Support
Match the exact SKU, vehicle configuration and installation method before cutting. Overall glass dimensions are not a cutout template. Dry-fit the actual window and follow the model-specific instructions.
OVR3310 spec sheet & technical drawing
Overlander Half-Slider Van Bunk Window (35-5/16" x 11-3/16"). View the technical drawing below for this model.
Use the drawing to review the profile and dimensions. Confirm the exact model, position and measurements before cutting; the PDF is not a full-size cutout template.
Search all VWD van window spec sheets · Window installation guides
Glass Specifications
| Glass Thickness | 4 mm |
|---|---|
| UV Transmission | 17% |
Why Virtus
The road doesn't wait for the almost-right build.
Our modular architecture means your van grows with you — reconfigure it for weekend climbing trips, retrofit it for a season on the road, or strip it back for work Monday morning. No tools required. No compromises made.
