Used Truck Horn Valves & Pull Cords

Used truck horn valves, pull cords & interior air horn controls

Horn valves and pulls are the cab-mounted controls that operate the truck’s air horns. On many heavy vehicles the driver activates the horn by pulling a cord or handle connected to a manual air valve, which opens the compressed air supply to the roof-mounted horns. In other setups, a dash-mounted valve or switch performs the same job, but the principle is always the same – control the flow of air to the horn so it sounds when needed.

In this category we list used OEM truck horn valves, pull cords and interior air horn controls removed from late-model European tractors and rigids. Typical parts include manual pull valves with chains or cords, cab-mounted horn levers and associated mounting hardware for popular fleet trucks.

What you will find in the Horn Valves & Pulls category

Stock in this category changes as new donor vehicles arrive, but it typically includes:

manual air horn pull valves for cab interiors, often operated by a cord or chain;
horn pull handles and knobs that the driver pulls from the roof or above the windscreen;
cab-mounted horn valves for air horn systems, designed to control compressed air supply;
small brackets and fixings that secure horn valves or pulls to the cab structure;
related interior hardware for OEM air horn installations on European trucks.

Each listing includes clear photos of the exact item in stock, along with OEM numbers where available and details of the donor vehicle, so you can compare the design, mounting and connections with the horn control fitted to your truck.

Truck brands & typical applications

Most horn valves and pulls we stock come from mainstream European lorries such as:

DAF XF and CF tractors and rigids;
MAN TGS and TGX long-haul and distribution trucks;
Volvo FH and FM series;
Mercedes-Benz Actros, Arocs and Axor;
selected Scania and other brands where available.

These components are designed for OEM air horn systems on heavy trucks and are a good choice when you need to replace a worn, damaged or missing horn valve or pull handle while keeping the cab interior close to original specification.

How horn valves & pulls work in an air horn system

On many heavy-duty vehicles, the air horn system uses compressed air from the truck’s main air brake reservoirs. The horn valve or pull in the cab:

receives air from a supply line connected to the vehicle’s air system;
opens the path to the horns when the driver pulls the handle or operates the control;
closes again when the handle is released, stopping the sound;
is mounted inside the cab so the driver can reach it quickly in an emergency.

Depending on the design, control can be via a roof-mounted pull cord, a dash valve or a lever above the driver’s seat, but the function remains to safely control air delivery to the horn trumpets on the cab roof or front panel.

Typical reasons to replace a horn valve or pull

Common reasons to order parts from this category include:

stiff or leaking horn valve that no longer fully opens or closes, causing weak horn sound or air leaks;
broken pull handle or cord that makes it difficult or impossible to operate the horn;
physical damage to the valve body or mounting bracket after interior repairs or cab accident damage;
upgrading from an electric horn control back to an OEM-style air horn pull for driver preference and period-correct feel;
replacing non-original or improvised controls with the correct OEM interior hardware.

How to choose the correct horn valve or pull

To make sure you order the right horn valve or pull for your truck, always check:

OEM part number on the existing valve or handle, where still readable;
truck brand, model and year – for example MAN TGX Euro 6, DAF XF106, Volvo FH4, Mercedes Actros MP4;
mounting position in the cab – roof area above the driver, dash panel or overhead console;
type of control – pull cord, lever, knob or combined valve and switch assembly;
air connections on the valve – hose size, number of ports and orientation;
any additional brackets or trim pieces that are required for a neat fit in your specific cab interior.

If you are unsure, you can contact us with your VIN or registration number and clear photos of your existing horn valve or pull, including its mounting area. Our team can help you cross-check compatibility. For general advice, see How to Find the Right Part and Compatibility & VIN Policy.

Used OEM interior horn controls from dismantled trucks

During dismantling, our technicians carefully remove horn valves, pulls and associated brackets from donor cabs. Parts are inspected for cracks, broken mounts, damaged threads and obvious air leaks. Items that do not meet our standards are rejected; only usable OEM components are cleaned, labelled and stored under cover in our warehouse.

Because we specialise in used OEM truck parts, you benefit from interior controls designed specifically for heavy-duty truck cabs, with the correct look, feel and durability for commercial use. For more details about our processes, see Our Dismantling & Quality Process and Warranty & Part Condition.

Related interior & cab categories

If you are refreshing the cab interior or repairing more than just the horn control, you may also want to browse:

Interior – overview of all interior parts;
Interior Controls – additional switches and controls inside the cab;
Steering Wheels – steering wheels and related components;
Sun Visors and Other Interior – more cab trim and comfort items.

Delivery, payment & returns

All interior horn valves, pulls and controls are shipped quickly from our UK warehouse with tracked delivery options across the UK and EU. For information about delivery methods, transit times and costs, please see our Delivery & Shipping page.

Details of payment options, VAT handling and returns can be found on Payment & VAT and Returns & Refunds. If you need to combine horn controls with other interior or electrical parts for the same vehicle, our team will be happy to help you build a complete order.

Used Truck Horn Valves, Pull Cords & Interior Air Horn Controls