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Komatsu 7861-74-5100 Relay
Regular price $44.01 USDRegular priceSale price $44.01 USD -
Komatsu 7861-91-4500 Coolant Level Sensor
Regular price $168.95 USDRegular priceSale price $168.95 USD -
Komatsu 7861-61-3330 Oil Temperature Sensor
Regular price $96.35 USDRegular priceSale price $96.35 USD -
Komatsu 7861-91-131A Sensor, Oil Pressure
Regular price $209.01 USDRegular priceSale price $209.01 USD -
Komatsu 7861-61-3320 Water Temperature Sensor
Regular price $86.82 USDRegular priceSale price $86.82 USD -
Komatsu 7821-91-2310 Engine Revolution Sensor
Regular price $164.37 USDRegular priceSale price $164.37 USD -
Komatsu 7819-11-2322 Sensor
Regular price $164.37 USDRegular priceSale price $164.37 USD -
Komatsu 7819-11-2310 Engine Revolution Sensor
Regular price $127.10 USDRegular priceSale price $127.10 USD -
Komatsu 7816-91-3320 Water Temperature Sensor
Regular price $86.82 USDRegular priceSale price $86.82 USD -
Komatsu 7819-11-2320 Engine Revolution Sensor
Regular price $164.37 USDRegular priceSale price $164.37 USD -
Komatsu 20S-06-31130 Keyswitch
Regular price $13.92 USDRegular priceSale price $13.92 USD -
Komatsu 208-06-71140 Sensor
Regular price $209.94 USDRegular priceSale price $209.94 USD -
Komatsu 208-06-71130 Sensor
Regular price $209.58 USDRegular priceSale price $209.58 USD -
Komatsu 195-06-55120 Switch
Regular price $297.80 USDRegular priceSale price $297.80 USD -
Komatsu 195-06-41180 Switch
Regular price $47.22 USDRegular priceSale price $47.22 USD -
Komatsu 17A-15-17271 Solenoid Valve
Regular price $459.76 USDRegular priceSale price $459.76 USD -
Komatsu 17A-15-17270 Solenoid Valve
Regular price $300.64 USDRegular priceSale price $300.64 USD -
Komatsu 17A-06-11361 Switch
Regular price $57.55 USDRegular priceSale price $57.55 USD -
Komatsu 08501-11508 Switch
Regular price $9.10 USDRegular priceSale price $9.10 USD -
Komatsu 11Y-04-51130 Sensor
Regular price $140.27 USDRegular priceSale price $140.27 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.