OEM-specification Komatsu Electrical Component. Part number 20c-06-31211. Compatible with Komatsu Excavator Pc30Mr 2 Pc35Mr 2 Pc50Mr 2 Pc78Us 6 Pc20Mr 2. Fits: PC20MR2B, PC35MR2A, PC30MR2D, PC30MR2C, PC30MR2B.
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.