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Ram Promaster Fan Spacers for Maxxair Fan preview

Files (3)

FanAdapterRibSpacer.stl
STL
10.4 KB
FanAdapterURearLeft.stl
STL
18.1 KB
FanAdapterURearRight.stl
STL
17.3 KB

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PETG filamentAmazon · Affiliate linkAmazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.Check price at Amazon
ABS filamentAmazon · Affiliate linkAmazon product page for 1.75 mm ABS; use an enclosure and suitable ventilation, and verify temperature requirements and seller.Check price at Amazon

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Mechanical/Functional

Ram Promaster Fan Spacers for Maxxair Fan

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CC BY
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The file license permits commercial reuse, subject to any applicable attribution or share-alike terms. License status does not verify vehicle fitment, OEM rights, design patents, or safety.

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Description

This is a 3D printed spacer to be used on the roof of a Ram Promaster van when installing a Maxxair fan. The ribs of the van's roof require some sort of spacer unless you want to fill the gaps with large amounts of sealant. Spacers are available online for $50 but these do the job just fine for much less. Most locations will probably use 6 rib spacers. My van is the extended version and I decided to place the fan right next to the seam between the roof panels so I needed the additional U shaped spacer to fit in that location.I used petg but the Silicone 2 I used to seal the vent doesn't really stick to it so ABS might be better. It's encased in sealant so it shouldn't be a problem either way.

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Published Jun 27, 2026Updated Aug 11, 2026

Originally published on thingiverse.com by Bryant Tonkin (Brik2k) · License: CC BY

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