Fuel Tank Cap STL Models for 3D Printing

This collection gathers 3D models of fuel tank caps and the parts that go with them: caps for cars and small engines, holders, retaining rings, cables and scale tanks for models. It is useful when an original cap is lost, cracked or hard to find, and a printed replacement or adapter is easier to make than to order. Most files are small, so they fit on a compact 3D printer and print in a short session. 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: 12/10/2026

Stiamo ancora riempiendo il database dei risultati. Apri la ricerca completa per vedere subito i modelli più aggiornati.

Trova fuel tank cap STL models for 3D printing

Informazioni sulla categoria

«Fuel Tank Cap STL Models for 3D Printing»

The range splits into several groups. There are caps for passenger cars and SUVs, caps for walk-behind tractors, brushcutters and other small engines, and parts that hold or tether a cap, such as holders, rings and cables. A separate group covers motorcycles and RC vehicles, where caps and tanks are scaled down, and another covers tools and small accessories like keys, knobs and vent adapters.

When choosing a model, look at the author's page for the cap diameter and thread pitch, since a printed cap has to match the filler neck. Check how many parts the file contains and whether they are joined by screws, pins or glue, and whether the geometry needs supports. The material matters too: parts that stay in contact with fuel are usually printed in petrol-resistant filaments, while covers and holders can use common ones. Photos of real prints show how the threads and sealing surfaces came out.

To narrow the search, try synonyms and related terms: gas cap, filler cap, tank cover, cap holder, retaining ring, cap tether, vent cap, or the type of machine the cap belongs to, such as walk-behind tractor, brushcutter, outboard engine or RC car. Searching by the filler neck diameter or thread size often works better than by vehicle name. Related topics worth checking are funnels, tank vents, fuel line clips and scale model fuel tanks.

FAQ

Domande frequenti

How do I find a cap that fits my filler neck?

Compare the diameter and thread pitch given on the model page with your filler neck. If the file only gives a diameter, measure the neck across the threads and check whether the model uses a straight or tapered thread.

Do printed fuel caps need a seal or gasket?

Many designs include a groove or recess for an O-ring or a cut gasket. Check the model page for the seal size, and note that the material you print in affects how the part behaves around fuel.

Which parts are usually printed besides the cap itself?

Holders, retaining rings, tethers, cables and vent adapters appear often, as do small tools for opening or tightening a cap. These are usually simpler shapes and need fewer supports.

Can these files be scaled for a model or a smaller engine?

Scaling changes the thread, so a scaled cap will not match the original neck. If you need a smaller version, look for a file that was drawn at that scale, such as RC or model train parts.