Gate – QD fitting [Engine side, 6 mm, US Standard] (QDF-US)
£15.99
An engine-side quick-disconnect fitting from GATE in 6 mm, made to the US Standard specification. A component for those building, servicing or reconfiguring an HPA setup who need to match an existing connector.
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Description
The QDF-US is a quick-disconnect fitting from GATE, listed as the engine-side connector in 6 mm with a US Standard specification. It is the hardware that connects an HPA air line at the engine side of a build, and it is offered as an individual component for those assembling, servicing or reconfiguring a setup.
Because the part is identified by both its 6 mm size and the US Standard designation, you can check it against the engine-side connection you are working with before ordering. It appears in GATE’s HPA category of parts as a single item, so the size and standard given here are the details to match against the connector already on your build.
- Engine-side quick-disconnect fitting
- 6 mm size
- US Standard specification
- Individual component from GATE
Useful when a connector needs replacing or when an engine-side assembly is being put together from parts. Compare the size and standard marked on your existing fitting with the QDF-US details above before you order.

![Gate - QD fitting [Engine side, 6 mm, US Standard] (QDF-US)](https://www.defconairsoft.co.uk/wp-content/uploads/2026/11/Gate-QD-fitting-Engine-side-6-mm-US-Standard-QDF-US.jpg.webp)





