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Komatsu D50Se183 Horn Switch
Regular price $46.08 USDRegular priceSale price $46.08 USD -
Komatsu D40E181 Switch
Regular price $34.85 USDRegular priceSale price $34.85 USD -
Komatsu D30E79 Switch
Regular price $34.85 USDRegular priceSale price $34.85 USD -
Komatsu Cu490606 Safety Relay A
Regular price $424.49 USDRegular priceSale price $424.49 USD -
Komatsu Cu4063712 Solenoid
Regular price $130.04 USDRegular priceSale price $130.04 USD -
Komatsu D250E309 Switch, Combination Lamp
Regular price $74.75 USDRegular priceSale price $74.75 USD -
Komatsu Cu4954905 Sensor Assembly
Regular price $35.54 USDRegular priceSale price $35.54 USD -
Komatsu Ca0643612 Sensor
Regular price $605.84 USDRegular priceSale price $605.84 USD -
Komatsu Ca0358759 Sensor
Regular price $208.26 USDRegular priceSale price $208.26 USD -
Komatsu Ca0128902 Switch
Regular price $73.06 USDRegular priceSale price $73.06 USD -
Komatsu Ca0148863 Switch
Regular price $75.39 USDRegular priceSale price $75.39 USD -
Komatsu Ca0143687 Sensor, Oil Temperature
Regular price $214.38 USDRegular priceSale price $214.38 USD -
Komatsu Ca0139107 Sensor
Regular price $208.26 USDRegular priceSale price $208.26 USD -
Komatsu Ca0138643 Pressure Sensor
Regular price $125.20 USDRegular priceSale price $125.20 USD -
Komatsu Ca0138644 Pressure Sensor
Regular price $56.35 USDRegular priceSale price $56.35 USD -
Komatsu Bw056392 Switch, Starter
Regular price $14.48 USDRegular priceSale price $14.48 USD -
Komatsu Ca0134125 Solenoid Pipe
Regular price $406.15 USDRegular priceSale price $406.15 USD -
Komatsu Ca0134513 Sensor
Regular price $361.87 USDRegular priceSale price $361.87 USD -
Komatsu 985789C1 Switch, Combination Lamp
Regular price $76.50 USDRegular priceSale price $76.50 USD -
Komatsu Ca0133387 Sensor Gasket
Regular price $29.79 USDRegular priceSale price $29.79 USD
Collection: KOMATSU ELECTRICAL SYSTEM
At WQParts, we know electrical problems are some of the most frustrating issues in the field—intermittent faults, no-starts, warning codes, and downtime that’s hard to diagnose. Our Komatsu electrical system parts are built to eliminate that uncertainty, delivering consistent power, clean signals, and dependable operation in real working conditions.
We offer premium-quality alternators, starters, wiring harnesses, sensors, switches, relays, controllers, and electrical accessories engineered to meet or exceed OEM specifications. Each component is designed for precise fit and resistance to vibration, heat, moisture, and contamination—because heavy equipment doesn’t operate in clean environments.
The result is reliable starting, accurate system feedback, and stable machine performance you can trust shift after shift. Whether you’re troubleshooting a fault or rebuilding a machine from the ground up, WQParts Komatsu electrical components help keep your equipment running smoothly and your operators productive.
WQParts Komatsu electrical system parts — dependable power, clear signals, and fewer surprises.