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
Vehicle Compatibility
Model
Fits
Notes
Mercedes-Benz Sprinter: 906 / NCV3 and 907 / VS30 (2007-2026+)
✓ Yes
Installs in front window channel (driver or passenger)
Ford Transit 150 / 250 / 350: V363 (2015-2025+)
✓ Yes
Cargo and passenger vans only
Transit Connect / Custom / Courier
✕ No
Different window profile
Ram ProMaster: X250 / X290 platform (2006+)
✓ Yes
Also fits global equivalents
Fiat Ducato / Peugeot Boxer / Citroën Jumper (2007+)
✓ Yes
Shared ProMaster platform
ProMaster City
✕ No
Different window geometry
What's in the box?
Driver Side Bug Barrier
Passenger Side Bug Barrier
(Optional Carrying Bag)
Complimentary Sticker
Jelly Beans!
Materials
Smooth paintable ABS plastic
Specifications / Measurements
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.
Manufacturing Variations
This product is thermoformed from a larger plastic sheet and trimmed by hand. As a result, minor variations in cut lines, edges, corners, texture, and trim points are normal and may differ between individual pieces.
These cosmetic variations do not affect the product’s fitment, strength, sealing, or functionality and are not considered manufacturing defects.
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Product Description
Product Description
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
Vehicle Compatibility
Model
Fits
Notes
Mercedes-Benz Sprinter: 906 / NCV3 and 907 / VS30 (2007-2026+)
✓ Yes
Installs in front window channel (driver or passenger)
Ford Transit 150 / 250 / 350: V363 (2015-2025+)
✓ Yes
Cargo and passenger vans only
Transit Connect / Custom / Courier
✕ No
Different window profile
Ram ProMaster: X250 / X290 platform (2006+)
✓ Yes
Also fits global equivalents
Fiat Ducato / Peugeot Boxer / Citroën Jumper (2007+)
✓ Yes
Shared ProMaster platform
ProMaster City
✕ No
Different window geometry
What's in the box?
Driver Side Bug Barrier
Passenger Side Bug Barrier
(Optional Carrying Bag)
Complimentary Sticker
Jelly Beans!
Materials
Smooth paintable ABS plastic
Specifications / Measurements
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.
Manufacturing Variations
This product is thermoformed from a larger plastic sheet and trimmed by hand. As a result, minor variations in cut lines, edges, corners, texture, and trim points are normal and may differ between individual pieces.
These cosmetic variations do not affect the product’s fitment, strength, sealing, or functionality and are not considered manufacturing defects.
