Description

Overview

Sealco knob suits dash valve replacements are used on heavy vehicle air brake dashboards to restore clear, positive control of spring brake and other dash-mounted air functions. This replacement knob gives drivers a solid grip and clear visual indication, so they can quickly identify and operate the correct Sealco control valve in demanding fleet service.

Features

• Replacement dash control knob specifically suited to Sealco hand and spring brake control valves in air brake systems
• Moulded black cap and positive profile help drivers locate the correct dash control by feel and sight
• Compatible with nominated Sealco dash valves so workshop changeover stays simple during cab repairs
• Suitable for heavy truck and trailer combinations where the original Sealco knob has worn, faded or been damaged

Specifications and Materials

Part number: AB8343KB.
This Sealco knob suits dash valve applications that use a screw-on dash knob attached directly to the hand control or spring brake valve. The design follows typical Sealco practice, with a durable moulded plastic body and logo, so it withstands repeated operation in busy linehaul, distribution and construction fleets. Installers can re-use the existing valve and stem while only changing the knob, which keeps downtime and cost down while still refreshing the cab controls. For general design and application details on Sealco knobs used with hand control valves, refer to the manufacturer knobs overview at Sealco knobs technical page for reference across the range.

Compatibility and Fitment

This cross-reference listing means this part is a suitable replacement for the part numbers and applications shown. Some changes in installation may be required. AB8343, AB8400, AB8400G.

Compliance and Safety

When you install a Sealco knob suits dash valve replacement, always verify that the valve function, label and knob style still match the original build standard. Additionally, confirm that the knob movement corresponds to the correct spring brake or control function and that any dash legends remain clearly visible to the driver. After refitting, cycle the connected valve several times, then check for unintended operation or interference with adjacent dash controls before releasing the vehicle back into service.

Trailer Applications

In normal use, this knob sits on spring brake hand control valves and other Sealco dash valves that manage parking and trailer supply functions. It therefore suits prime movers, rigid trucks and specialised trailers where Sealco valves are used in the cab. Workshop teams can fit this Sealco knob suits dash valve replacement during broader air brake or cab refurbishment work, and drivers then benefit from consistent feel and appearance across the fleet’s dash controls.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Before ordering, match the existing valve family, stem style and knob profile on the vehicle so this replacement integrates cleanly with the current dash layout.

Why Choose ICS Trailers

ICS Trailers focuses on heavy vehicle trailer parts, so our Sealco knob suits dash valve listings highlight the specifications that fleet workshops actually need. You can quickly confirm that this knob suits the required Sealco dash valves, then align it with other air brake components already stocked through ICS. In addition, our team understands how these knobs interact with spring brake and control valves in Australian trailer combinations, which helps reduce guesswork when you are maintaining large mixed fleets. For related components, browse Air Brake Parts at ICS Trailers online.