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Komatsu 561-06-61221 Brake Lamp Switch
Regular price $130.27 USDRegular priceSale price $130.27 USD -
Komatsu 565-44-11200 Parking Relay Valve Assembly
Regular price $242.37 USDRegular priceSale price $242.37 USD -
Komatsu 532-06-11930 Switch
Regular price $57.55 USDRegular priceSale price $57.55 USD -
Komatsu 4945162 Switch
Regular price $83.11 USDRegular priceSale price $83.11 USD -
Komatsu 5229150 Switch
Regular price $68.62 USDRegular priceSale price $68.62 USD -
Komatsu 500-44-14161 Switch
Regular price $169.57 USDRegular priceSale price $169.57 USD -
Komatsu 560-44-05020 Air Relay Valve Service Kit
Regular price $144.32 USDRegular priceSale price $144.32 USD -
Komatsu 500-44-14160 Switch
Regular price $152.94 USDRegular priceSale price $152.94 USD -
Komatsu 560-44-11203 Parking Relay Valve Assembly
Regular price $306.95 USDRegular priceSale price $306.95 USD -
Komatsu 42U-43-H0P00 Pressure Switch
Regular price $28.96 USDRegular priceSale price $28.96 USD -
Komatsu 4947637 Switch
Regular price $30.10 USDRegular priceSale price $30.10 USD -
Komatsu 475-07-15120 Switch
Regular price $53.29 USDRegular priceSale price $53.29 USD -
Komatsu 426-56-21490 Power Window Switch
Regular price $107.96 USDRegular priceSale price $107.96 USD -
Komatsu 426-35-05110 Air Relay Valve Service Kit
Regular price $144.32 USDRegular priceSale price $144.32 USD -
Komatsu 42U-06-15170 Sensor
Regular price $243.99 USDRegular priceSale price $243.99 USD -
Komatsu 425-15-35220 Solenoid
Regular price $736.21 USDRegular priceSale price $736.21 USD -
Komatsu 421-06-35111 Pressure Switch
Regular price $473.31 USDRegular priceSale price $473.31 USD -
Komatsu 421-06-11930 Battery Relay
Regular price $72.03 USDRegular priceSale price $72.03 USD -
Komatsu 421-43-22921 Emergency Brake Switch
Regular price $357.48 USDRegular priceSale price $357.48 USD -
Komatsu 421-06-11361 Switch
Regular price $69.78 USDRegular priceSale price $69.78 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.