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Electrical Parts for Heavy Equipment
Keep machines powered with dependable electrical components
9,594 products available in this system
Electrical Parts for Heavy Equipment
Moz Auto Parts's electrical parts catalog covers the full spectrum of heavy equipment electrical systems — from high-output alternators and heavy-duty starter motors to precision solenoid valves and electronic control modules. Every part is OEM cross-referenced and backed by our…View More
Frequently asked questions
What electrical parts does heavy equipment need most often?
The most commonly replaced electrical parts are alternators, starter motors, and solenoid valves. These components endure high stress from vibration, heat, and electrical cycling. Batteries, wiring harnesses, and switches are also frequent replacement items.
How do I troubleshoot electrical problems on my excavator?
Start with the basics: check battery voltage (12.6V fully charged for 12V systems), inspect terminals for corrosion, verify fuses and relays, and test the alternator output. A multimeter is essential. For complex issues, diagnostic scan tools can read fault codes from the ECU.
Are heavy equipment electrical parts 12V or 24V?
It depends on the machine. Most compact equipment (skid steers, mini excavators, tractors) uses 12V systems. Larger equipment (full-size excavators, dozers, mining trucks) typically uses 24V systems. Always verify your machine's voltage before ordering parts.