Hadley Air Horn Pull Chain Kit - Truck Pull Chain

The kit comes complete with everything you need to convert your standard air horn into one with a pull chain. The kit comes complete with
The kit comes complete with everything you need to convert your standard air horn into one with a pull chain.  The kit comes complete with:   Air Line Tube Valves Reducers Mounting Kit Metal Pull Chain Connectors   Please Note: This pull chain kit will  NOT  enable you to fit an air horn. You must purchase a Hadley Air Horn fitting kit to fit your horn. If you already have a genuine Hadley air horn fitted then this kit is all you need to add a pull chain.

Brass hand pull valve for roof mount horns. Works with horn models: 401, 411, 412, All brass hand pull lanyard valve, For roof-mount horns, Inlet

Model 311 Brass Hand Pull Valve for Roof Mount Horns

Train Horns - Mike's Chrome Shop

How to Install a Pull Chain Valve Air Horn on a Pickup Truck

Scania Catalog

Accessories & spare parts

Hadley HOO500C Height Control Valve Level Kit - PIF Parts

How to Install a Pull Chain Valve Air Horn on a Pickup Truck

Air Horns

Truck Air Horn

DIY train horns for the win : r/Justrolledintotheshop