Velvac
Velvac 600186 Vented Non-Locking Fuel Cap Silver
Vented non-locking diesel fuel cap with 5.5 threads per inch and silver aluminium finish
- TypeAutomotive Accessories
- ColorSilver
- Vented design releases fuel-tank pressure safely
- Non-locking cap allows quick refuelling access
- Aluminium construction resists corrosion in diesel use
- 5 threads per inch ensure secure sealing
- Silver finish matches OEM styling cues
Product identity
The Velvac 600186 is a silver aluminium fuel cap designed for diesel tanks with a 3 1/2 inch neck diameter and 3 3/8 inch neck length. It suits fleet operators and vehicle owners who need a vented, non-locking closure with a tethered chain and cross bar.
Fitment check
Verify that your tank neck matches the 3 1/2 inch diameter and 3 3/8 inch length before ordering. The cap uses a 5.5 threads per inch pattern, so confirm the thread pitch on the existing filler neck. This item is not for buyers who need a locking cap or a different venting specification.
Build and daily use
The aluminium body resists corrosion while the attached chain and cross bar keep the cap secured during refuelling. A vented design allows pressure equalisation in diesel systems, and the non-locking mechanism speeds up access for high-frequency stops.
Highlights
- Vented design releases fuel-tank pressure safely
- Non-locking cap allows quick refuelling access
- Aluminium construction resists corrosion in diesel use
- 5 threads per inch ensure secure sealing
- Silver finish matches OEM styling cues
Specifications
| Brand | VELVAC |
|---|---|
| Type | Automotive Accessories |
| Color | Silver |
Questions about this item
Does the Velvac 600186 fuel cap come with a chain and cross bar attached?
Yes, the cap is supplied with a threaded chain and cross bar already fitted, so no extra retaining hardware is needed.
How do I know if the 5.5 threads per inch specification matches my tank neck?
Measure the existing cap or neck threads; if they are 5.5 threads per inch the Velvac 600186 will screw on directly.
What does the vented design do when the cap is on a diesel tank?
The vent allows air to enter as fuel is drawn out, preventing vacuum build-up that can starve the engine.
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