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Oil Funnel STL Models for Engines and Refills

This collection gathers STL files for oil funnels and related filling aids, from threaded filler necks to wide vented shapes. It is useful when you want a funnel matched to a specific filler opening instead of a generic one. Each listing comes from a different author, so the geometry and the notes around it vary. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

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選定基準：Polyzon編集部 · 本文の更新日：2026年10月15日

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«Oil Funnel STL Models for Engines and Refills»

The models fall into a few groups. Vehicle-specific funnels are shaped around a particular filler neck or engine bay, while screw-on versions add a threaded collar and often a cap or plug. Vented and high-flow designs use a wider throat or an air channel so liquid does not gulp and splash. There are also small funnels for generators and other compact engines, plus plain kitchen-style funnels for general pouring.

When choosing, open the author's page and read the dimensions first: throat diameter, outlet diameter and overall height decide whether the funnel reaches the filler without tipping. Check how many parts are involved, whether they are meant to be glued or threaded together, and whether the author lists supports, layer height, wall count and material. Photos of real prints show how the outlet sits and whether the cap seals.

To narrow the results, search by the filler type rather than the word funnel alone: threaded filler, oil filler neck, vented funnel, transmission fluid filler or coolant fill. Adding the engine or vehicle family, the scale for miniature containers, or terms like no-spill and drip tray usually brings up different designs. Related searches such as funnel holder, funnel cap and drain pan can also be worth trying.

FAQ

よくある質問

What should I measure before printing an oil funnel?
Measure the inner diameter of the filler opening and the clearance around it, then compare those with the outlet and body dimensions the author lists. Height matters too, since a tall funnel may not fit under a hood or beside an engine.
Do these funnels need supports?
It depends on the shape. Wide cones with a steep wall often print without them, while threaded collars, caps and long narrow outlets may need support under overhangs. The author's page usually states what was used.
Which material is used for oil funnels?
Authors commonly list PETG, ABS or ASA for parts that contact oil, and PLA for dry or short-term use. Check the material and temperature notes on the model page rather than assuming one choice.
Can I resize a funnel model?
Scaling is possible, but it changes the outlet and thread dimensions, so a scaled screw-on funnel may no longer match the filler. Adjust the model or pick another one if the fit depends on threads.
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