OEM-specification Komatsu Solenoid. Part number 21w-60-22190. Compatible with Komatsu Pc40 Pc50 Pc55 Pc75Uu 2 Pc75Ud 2 Pc128Uu 1.
Always verify with serial number before ordering.
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Disconnect main battery before working on electrical components. Use dielectric grease on all connector pins. Check ground connections — most electrical faults trace to poor grounds. Test with multimeter before installing new parts.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.