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Oil Funnel STL Models for 3D Printing

This collection gathers 3D models of oil funnels: threaded versions that screw onto a filler neck, universal tapered funnels in sets, angled shapes for cramped engine bays and wide funnels for drums. Most of them are small parts, so they print quickly on a common 3D printer and can be reprinted if a thread or diameter does not fit. The STL files are meant to be adjusted in the slicer, which makes the collection useful when no off-the-shelf funnel matches your filler opening. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

Il testo di questa raccolta è in inglese; la ricerca funziona in qualsiasi lingua.

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Polyzon compone questa raccolta a partire dai risultati di ricerca dei siti collegati. I doppioni e i modelli senza anteprima vengono rimossi, le corrispondenze deboli finiscono in fondo e il resto mantiene l’ordine dei risultati. I modelli appartengono ai rispettivi autori: verifica le condizioni sulla pagina di ciascun modello.

Criteri di selezione a cura della redazione di Polyzon · Testo aggiornato: 14/10/2026


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«Oil Funnel STL Models for 3D Printing»

The models differ mainly in how they connect to the engine. Threaded funnels are shaped around one filler neck and rely on a matching thread, while universal funnels use a tapered cone that sits loosely in the opening. Angled versions move the pour point away from hoses and manifolds, and wide-mouth funnels are sized for drums or large cans. Some entries combine a funnel with a filter removal tool or a cap replacement, so the part does more than guide oil.

Before printing, read the author's page for the thread diameter and pitch, the outer diameter of the cone, and the wall thickness. Check whether the model needs supports, since a long neck printed without them can sag, and note the material the author lists: PLA softens at lower temperatures than PETG or ABS, which matters when hot oil passes through. Photos of real prints show how the thread engaged and how much clearance the funnel leaves around the filler neck. Scale is worth verifying too, because a model drawn for one engine bay may be too tall once installed.

If the first search does not return a match, try other words for the same object: oil spout, filler funnel, pour spout, transmission funnel or Trichter. Adding the engine layout, such as inline-four or V6, or the filler position, narrows results further. Related topics include oil filter wrenches, drain pans, funnel caps and threaded adapters, which often appear in the same collections. You can also search for a funnel by its opening size or by the container it serves, from a one-quart can to a large drum.

FAQ

Domande frequenti

What material should I use for a 3D printed oil funnel?
It depends on how hot the oil is when you pour. PLA is easy to print but softens at lower temperatures, while PETG, ABS and similar filaments hold up better. The author's page usually names the material and settings used for the shown print.
How do I find a funnel that fits my filler neck?
Compare the thread diameter and pitch or the cone diameter given on the model page with your filler opening. If the model is parametric, you can adjust those values in the source file before exporting an STL.
Do these funnels need supports when printed?
Long necks, angled spouts and overhanging rims often do. Check the author's notes and photos, and orient the part so the thread and the inner channel print without sagging.
Can a printed funnel replace the cap on the engine?
Some models are designed as a cap and funnel in one, with a twist-lock or screw connection. Whether it stays in place while driving depends on the thread fit and the material, so check the model page and the photos of printed parts.

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