Description
Universal Half-Slider Van Bunk Window 41-5/16" x 16-5/16" | VWD Overlander OVR4015
Maximum airflow. Bigger view. Universal fit by measurements. OVR4015 is the largest half-slider bunk window in the Overlander lineup.

Key Features
- Universal half-slider bunk window for van conversions and custom builds
- Installs on driver side or passenger side
- Solar privacy glass with 17% UV rating
- Oversized vent opening for strong airflow in bunk and sleeping areas
- Integrated bug screen
- Clamp ring mounting system for a serviceable compression seal install
- 3M foam seal included
- Built-in top and bottom drainage channels
- Black aluminum frame
- Made in China
- 1-year warranty
- Usually ships in 5 days or less
Fitment
- Universal fit (verify by measurements, not year/make/model)
- Common platforms: Sprinter, Transit, ProMaster, Express, Savana, Econoline, and more
- Does not fit fiberglass extensions
- Installation note: due to size, use extra care on heavily curved van bodies (example: Transit). Level the surface and apply even clamp pressure.
Technical Specifications
| SKU | OVR4015 |
| Series | VWD Overlander |
| Window Type | Universal Half-Slider Van Bunk Window |
| Window Position | Driver Side or Passenger Side |
| Glass | Solar Privacy Glass |
| UV Rating | 17% |
| Screen | Integrated bug screen |
| Frame | Black aluminum |
| Installation | Clamp Ring (compression seal) |
| Seal Included | 3M foam seal |
| Drainage | Built-in top and bottom drainage channels |
| Manufactured In | China |
| Warranty | 1 Year |
Measurements
| Outer Dimensions | 41-5/16" x 16-5/16" |
| Cutout Dimensions | 40" x 15" |
| Vent Opening Size | 17-13/16" x 11-7/8" |
| Clamp Ring Wall Depth | 1/8" |
Installation
This is a clamp ring window. Plan the location first, and confirm that the cutout fits between ribs and the structure. Because this is a larger window, spend extra time confirming that the surface is sufficiently flat for a uniform seal. Cut the opening to the listed cutout size. Set the window in the opening with the seal in place. Install the clamp ring and tighten evenly in a cross pattern until the seal compresses uniformly. Confirm slider movement, latch function, and screen operation before final tightening. Confirm drainage orientation and keep drainage channels clear.
FAQ
Which side does OVR4015 fit?
It can be installed on either the driver side or passenger side. Fitment is based on measurements and having a flat metal panel area large enough for the cutout.
What are the measurements?
Outer dimensions: 41-5/16" x 16-5/16". Cutout dimensions: 40" x 15". Vent opening size: 17-13/16" x 11-7/8". Clamp ring wall depth: 1/8".
What tint and UV rating does it use?
Solar privacy glass with a 17% UV rating.
How is it installed?
Clamp ring installation with a compression seal. A 3M foam seal is included. Tighten evenly in a cross pattern until the seal compresses uniformly.
Does it include a screen and drainage?
Yes. It includes an integrated bug screen and built-in top and bottom drainage channels.
Will it fit fiberglass extensions?
No. The listing notes it does not fit fiberglass extensions.