The Overlander half-slider range offers several footprints for compact window placements. Size choice should follow the usable wall area, interior layout and intended ventilation opening.
Compare OVR3009, OVR3310, OVR3511 and OVR4015 using their individual specifications. Universal applications still require suitable wall construction, panel shape and installation clearance.
Compare the four footprints
The source range includes OVR3009, OVR3310, OVR3511 and OVR4015 half-slider windows. They offer different overall dimensions and openings, so start with the available wall area and the intended view or ventilation position.
Compare outside dimensions with the required cutout separately. Check the current model listing for mounting components, wall requirements and included screens.
Universal still needs a fit check
A universal window is selected for a suitable custom opening. It does not remove the need to assess panel curvature, surrounding structure, wall thickness or operating clearance.
Confirm orientation and installation details for the specific model. Do not assume that every universal window can be reversed or installed on either side without checking its instructions.
Plan the finished bunk area
Mark the mattress height and interior trim depth before choosing the window location. Controls and screens should remain accessible after the bed and cabinets are installed.
Images and applications

Current model details to compare
Compare the model details below, then open the product page to confirm the fitment, included components and installation requirements for your build.
VWD Overlander Half-Slider Van Bunk Window (31-5/16" x 10-3/16") | OVR3009
| SKU | OVR3009 |
|---|---|
| Window Type | Universal Half-Slider Van Bunk Window |
| Window Position | Driver Side or Passenger Side |
| Installation | Clamp Ring (compression seal) |
| Installation Type | Clamp Ring |
VWD Overlander Half-Slider Van Bunk Window (36-3/4" x 13-1/8") | OVR3511
| SKU | OVR3511 |
|---|---|
| Window Type | Universal Half-Slider Van Bunk Window |
| Window Position | Driver Side or Passenger Side |
| Installation | Clamp Ring (compression seal) |
| Clamp Ring Wall Depth | 1/8" |
VWD Overlander Half-Slider Van Bunk Window (41-5/16" x 16-5/16") | OVR4015
| SKU | OVR4015 |
|---|---|
| Window Type | Universal Half-Slider Van Bunk Window |
| Window Position | Driver Side or Passenger Side |
| Installation | Clamp Ring (compression seal) |
| Outer Dimensions | 41-5/16" x 16-5/16" |
| Vent Opening Size | 17-13/16" x 11-7/8" |
| Clamp Ring Wall Depth | 1/8" |
VWD Overlander Half-Slider Van Bunk Window (35-5/16" x 11-3/16") | OVR3310
Always verify placement between structural ribs before cutting.