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Crack a window for airflow without turning your van into an open invitation for bugs. The Terrawagen Bug Barrier Window Vent drops into your front window channel and gives you a clean, secure way to vent the cabin while keeping insects out.
Each vent is built from durable ABS plastic and includes a built-in screen on every opening, so you get real cross-flow air without the “camping with the windows down” consequences. It’s designed to fit snug and drive-ready, helping reduce wind noise compared to improvised solutions.
Installation is quick: roll the window down, slide the vent into place, then roll the window back up to lock it in.
Sold as a pair with one driver side and one passenger side vent for balanced airflow.
US Patent No: US 11,858,317 B2
Mercedes Sprinter
| Model | Fits | Notes |
|---|---|---|
| Mercedes Sprinter (2007–2026+) | ✓ Yes | Installs in front window channel (driver or passenger) |
Ford Transit
| Model | Fits | Notes |
|---|---|---|
| Transit 150 / 250 / 350 (2015–2025+) | ✓ Yes | Cargo and passenger vans only |
| Transit Connect / Custom / Courier | ✕ No | Different window profile |
Ram ProMaster Platform
| Model | Fits | Notes |
|---|---|---|
| Ram ProMaster (2006+) | ✓ Yes | Also fits global equivalents |
| Fiat Ducato / Peugeot Boxer / Citroën Jumper (2007+) | ✓ Yes | Shared ProMaster platform |
| ProMaster City | ✕ No | Different window geometry |
| Vehicle | Overall Size | Taper |
|---|---|---|
| Sprinter | 22 in. x 10 ⅝ in. x ¾ in. | 10 ⅝ in. to 10 in. |
| Transit | 17 ¼ in. x 9 ½ in. x ¾ in. | 9 ⅛ in. to 8 ⅞ in. |
| Ram ProMaster | 17 in. x 9 in. x ¾ in. | 9 ¼ in. to 8 ⅞ in. |
Crack a window for airflow without turning your van into an open invitation for bugs. The Terrawagen Bug Barrier Window Vent drops into your front window channel and gives you a clean, secure way to vent the cabin while keeping insects out.
Each vent is built from durable ABS plastic and includes a built-in screen on every opening, so you get real cross-flow air without the “camping with the windows down” consequences. It’s designed to fit snug and drive-ready, helping reduce wind noise compared to improvised solutions.
Installation is quick: roll the window down, slide the vent into place, then roll the window back up to lock it in.
Sold as a pair with one driver side and one passenger side vent for balanced airflow.
US Patent No: US 11,858,317 B2
Mercedes Sprinter
| Model | Fits | Notes |
|---|---|---|
| Mercedes Sprinter (2007–2026+) | ✓ Yes | Installs in front window channel (driver or passenger) |
Ford Transit
| Model | Fits | Notes |
|---|---|---|
| Transit 150 / 250 / 350 (2015–2025+) | ✓ Yes | Cargo and passenger vans only |
| Transit Connect / Custom / Courier | ✕ No | Different window profile |
Ram ProMaster Platform
| Model | Fits | Notes |
|---|---|---|
| Ram ProMaster (2006+) | ✓ Yes | Also fits global equivalents |
| Fiat Ducato / Peugeot Boxer / Citroën Jumper (2007+) | ✓ Yes | Shared ProMaster platform |
| ProMaster City | ✕ No | Different window geometry |
| Vehicle | Overall Size | Taper |
|---|---|---|
| Sprinter | 22 in. x 10 ⅝ in. x ¾ in. | 10 ⅝ in. to 10 in. |
| Transit | 17 ¼ in. x 9 ½ in. x ¾ in. | 9 ⅛ in. to 8 ⅞ in. |
| Ram ProMaster | 17 in. x 9 in. x ¾ in. | 9 ¼ in. to 8 ⅞ in. |
