Inertia Components - Ram ProMaster Van Roof Vent Adapter for 14x14 Opening
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Stop wrestling with a curved roof and a flat vent. The Inertia Components - Ram ProMaster Van Roof Vent Adapter for 14x14 Opening is CNC-machined to match the exact OEM contour of ProMaster roofs, giving your fan a perfectly flat, stable mounting surface — no sheet metal distortion, no bent flanges, no improvising.
Features
- Fits 2014+ Ram ProMaster 136, 159, and 159 Extended models.
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Contoured-to-fit design – Engineered specifically for Ram ProMaster roof geometry. Whether you're mounting on a 136", 159", or 159" Extended wheelbase, our adapter eliminates shimming and guesswork.
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Prevents roof distortion – Distributes clamping load evenly across the adapter surface so your sheet metal and vent flange stay straight during and after installation.
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CNC-machined expanded PVC – UV-resistant and fire-resistant for long-term durability, even in high-heat, high-sun environments.
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Built-in cutting template – Use the adapter itself to scribe and cut your roof opening accurately before mounting. No separate template needed.
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Fits standard 14" x 14" openings – Designed to seat perfectly within the factory roof corrugated valleys for a professional, leak-proof seal.
Compatible with:
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Maxxair Deluxe Series vents
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Pro Breeze Fans
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Fan-Tastic Vent fans
- Airplus Deluxe vent fans
What’s in the Box?
- Ram ProMaster Roof Vent Adapter (inside lines also serve as a template for hole cut).

