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
• 17% UV rating helps reduce cabin heat
• 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"

Always verify placement between structural ribs before cutting.

Best Installation Locations

• Bed platforms
• Cabinet adjacent walls
• Rear sleeping areas
• Custom layouts and flares

Frequently Asked Questions

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.