3D Prints for Car Accessories and Replacement Parts (2026)

The best 3D prints for car accessories are cup holder expanders, seat gap organizers, visor tissue boxes, trim clip replacements and an oil funnel, and they need heat-resistant plastic: PETG is “the bare minimum” for a car interior because PLA can warp after just hours in a hot car, according to Jet L, a YouTube channel that tests popular 3D prints (Jet L, “10 Cool 3D Prints Every Car Needs!”).

Jet L printed 18 car prints across two videos, and All about the build, a YouTube channel about car projects, printed replacement parts after finding a shift boot frame cover can cost over $50 and a replacement radio unit up to $200 (All about the build, “How To 3D Print $600 Worth of Car Parts Cheap”). Below are the best prints by category, filament choices and printers that handle heat-resistant materials.

Best 3D Prints for Car Accessories by Category

Prices from Amazon at time of writing. I may earn a commission from links, at no cost to you.

Interior 3D Prints for Cars

Jet L’s cup holder adapter expands a cup holder to fit large water bottles, comes in multiple sizes and has optional TPU tabs for a snug fit. The designer offers to make a new size if yours isn’t listed (Jet L, “10 Cool 3D Prints Every Car Needs!”). His foldable can holder adds a third can spot and tucks away when not in use.

The seat gap organizer blocks the gap between seat and console where phones disappear; only the part around the seat belt needs TPU. The visor tissue box keeps tissues “within sneezing distance” and prints without supports. In his follow-up video, a door latch assist handle surprised him by holding his weight even in PLA, though he recommends PETG, ABS or ASA for a car (Jet L, “8 MORE Cool 3D Prints Every Car Needs!”).

Cleaning and Maintenance Prints

• Reach Swipe: a print-in-place articulating tool for the inside of the windshield. Cut a cloth to 125 by 105 mm and clip it on. It takes 2.5 hours and 69 g of filament (Jet L, “8 MORE Cool 3D Prints Every Car Needs!”).
• Vented oil funnel: designed to screw onto a Mobil 1 oil bottle with a built-in air vent so oil pours fast. Let oil cool before using it (Jet L, “10 Cool 3D Prints Every Car Needs!”).
• Trim pin replacements: the plastic pins that hold fender liners and engine bay covers are easy to lose during removal and hard to find locally. Search your car model plus “pin replacement” for an exact fit.
• Car wash hose guide: a two-piece guide with a spinning sleeve keeps the hose from catching under a tire. Two in front is usually enough.
• Dent finder: slide it along a panel and watch the reflected line; it bends where there’s a dent. Useful when buying or selling a car.

Why PLA Doesn’t Belong in a Car

Jet L said PLA will warp after just hours in a car, faster in a hot summer climate, and called PETG the minimum, with ABS better still (Jet L, “10 Cool 3D Prints Every Car Needs!”). He had print-quality issues on the oil funnel because he printed it on an open-frame Bambu Lab A1 and turned a room fan on partway through, a reminder that heat-resistant materials print best without drafts.

Jet L printed the vacuum extender in carbon-fiber PLA purely for looks and said “you can’t tell it’s 3D printed.” For anything that lives in the car long-term, choose a carbon-fiber PETG or ASA instead.

Printing Replacement Car Parts

All about the build argued that rising part prices make printing worthwhile, and printed alternatives including a radio delete plate. He estimated he could list one for about $35 on eBay, minus fees he put at around 13% (All about the build, “How To 3D Print $600 Worth of Car Parts Cheap”). I Like To Make Stuff, a maker channel, also tested how far 3D printing can go in improving a car (I Like To Make Stuff, “Can 3d Printing Improve Your Car?”).

Stick to interior and cosmetic parts. Avoid anything safety-critical such as brakes, steering, seat belt hardware or airbag areas.

Best Printers for 3D Printed Car Parts

Open printers like the Bambu Lab A1 handle PETG and TPU, but enclosed printers make ASA and ABS much easier.

Video: Jet L, “10 Cool 3D Prints Every Car Needs!”. Embedded with credit; the picks are the creator’s own.

Video: Jet L, “8 MORE Cool 3D Prints Every Car Needs!”.

3D Prints for Car Accessories: Frequently Asked Questions

What are the best 3D prints for car accessories?

Cup holder adapters, seat gap organizers, visor tissue boxes, vented oil funnels and trim pin replacements were among Jet L’s top picks.

What filament is best for 3D printed car parts?

PETG at minimum, according to Jet L; ASA or ABS for sun-facing parts.

Will a 3D printed phone mount melt in a car?

A PLA mount can warp in a hot car. Print it in PETG or ASA.

Do I need an enclosed printer for car accessories?

For ASA and ABS, yes. PETG and TPU print fine on open printers.

Can you 3D print car parts safely?

Yes for many interior and cosmetic parts. Avoid brakes, steering, seat belt hardware and airbag areas.

Sources

• Jet L, “10 Cool 3D Prints Every Car Needs!”
• Jet L, “8 MORE Cool 3D Prints Every Car Needs!”
• All about the build, “How To 3D Print $600 Worth of Car Parts Cheap”
• I Like To Make Stuff, “Can 3d Printing Improve Your Car?”
• Amazon product listings for the printers linked above, October 16, 2026

Related: Bambu Lab A1 vs P1S | Bambu Lab P1S vs P2S | PLA vs PETG for Beginners