OEM-specification Komatsu Electrical Component. Part number 421-06-23210. Compatible with Komatsu Wheel Loader Wa100 3A Wa120 3 Wa180 3 Wa300L 3 Wa380 5 Wa450 3 Wa700 3 Wa80 3 Wa900 3. Fits: WA803CO, JT1501.
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.