Dashboard gauges and accessories for commercial vehicles
Additional gauges give the driver direct, real-time visibility of system parameters that the standard instrument cluster may not show in detail. On HGVs, the most commonly added gauges are air pressure gauges for the braking system circuits, oil pressure gauges for engines on high-mileage chassis where oil pressure trends are worth monitoring, and voltmeters to monitor the charging system during extended cab rest periods.
Air pressure gauges are particularly useful on older HGVs where the standard dash may show only a warning light for low air pressure rather than a live pressure reading. Fitting a secondary air pressure gauge on each circuit allows the driver to confirm that pressure is within the normal operating range before departure and to identify slow leaks that wouldn't trigger the low-pressure warning.
Gauge installation requires correct probe or sensor fitment in the relevant part of the system, appropriate fusing of the power feed, and correct illumination wiring for visibility at night. If you're fitting a gauge that requires a new sensor, confirm the thread size and probe specification for your application before purchasing both components. Call us on 01527 598 000 for advice on the correct gauge specification for your vehicle.
Frequently Asked Questions
What additional gauges are useful on an HGV?
The most commonly added gauges on HGVs are air pressure gauges for braking system monitoring, oil pressure gauges for high-mileage engines, and voltmeters for charging system monitoring during cab rest. Air pressure gauges are particularly useful on older vehicles where the standard dash shows only a warning light rather than a live pressure reading.
What air pressure gauge do I need for an HGV braking system?
An air pressure gauge for HGV braking system monitoring should cover the operating range of the system, typically 0 to 15 bar (0 to 215 psi). Gauges are available in both analogue and digital formats. Analogue gauges are the standard choice for permanent cab installation as they are easier to read at a glance. Confirm the port thread size for your installation point before ordering.
Do you stock temperature gauges for HGV engine monitoring?
Yes. We stock temperature gauges for coolant temperature monitoring on HGV applications. These are used as secondary gauges providing a more detailed temperature readout than the standard instrument cluster warning indicator. Correct sensor probe specification for the coolant system fitting is required, so confirm the thread size and probe length before ordering.
What accessories do you stock for dashboard gauge installation?
We stock gauge pods, mounting brackets, wiring accessories, and illumination fittings for gauge installation on commercial vehicle dashboards. For a neat installation, a purpose-made gauge pod in the correct diameter for the gauge body is the correct approach rather than improvised mounting. Call us on 01527 598 000 to discuss the accessories needed for your specific installation.
