Motor Grader Fuel Gauge – Sender, Voltage and Range Matching
A motor grader fuel gauge must be electrically compatible with the tank sender. A gauge can fit the dashboard yet read backward, remain at empty or show an inaccurate level when its voltage or resistance range is wrong.
Ordering basis: Confirm supply voltage, sender resistance range, terminal functions, dial orientation and panel opening.
Electrical and dashboard evidence
Record machine system voltage and gauge markings.
Identify power, ground, sender and illumination terminals.
Measure panel cut-out, bezel and mounting depth.
Confirm the sender resistance at known fuel levels when service data is available.
Diagnose the complete level circuit
An incorrect reading may be caused by poor grounding, damaged wiring, a stuck float, sender wear or a mismatched gauge range. Test the sender and harness before replacing the dashboard instrument.
Safe functional test
Disconnect power according to the service procedure, label every wire and protect the panel. After installation, verify empty-to-full direction, illumination and reading stability without shorting the sender circuit.
Product record
| Component | Fuel level gauge |
| Part number | Not shown — verify from the original component or parts catalogue |
| Fitment rule | system voltage, sender resistance range, terminal layout, mounting size and tank sender |
Related product reference
Review the motor grader component verification guide for another component-level identification workflow. The linked product is a reference only and does not establish interchangeability.
FAQ
Can any 24-volt fuel gauge work with the same sender?
No. The sender resistance curve and terminal logic must also be compatible.
Why does the needle move in the wrong direction?
The gauge and sender may use opposite resistance curves, or the wiring may be incorrect.
What information should be sent for quotation?
Provide voltage, gauge markings, terminal photo, bezel dimensions and sender details.
Compatibility note: Match both the dashboard gauge and tank sender as one electrical system.
