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PETG filamentAmazon · Affiliate link	Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.	Check price at Amazon
ASA filamentAmazon · Affiliate link	Amazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability.	Check price at Amazon

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Trunk/Tailgate

Toyota Highlander liftgate speaker adapter for 3 1/2" speaker

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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.

Shared by

Bradford Crist (BadBrad97)

Description

This is an adapter that I had to make to get a 3 1/2 inch speaker into the Toyota Highlander 2018 liftgate because the current mount is for a 3 inch and a larger speaker will not fit. My final design needed a notch cut into it so that one of the clips for the tail light cover could go through it. I printed mine in PLA with 100% infill. It might have been overkill, but my early tests with 25% were not strong at all.

Compatible Vehicles

Toyota Highlander

Published Jun 27, 2026Updated Sep 25, 2026

Originally published on thingiverse.com by Bradford Crist (BadBrad97) · License: CC BY

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