OEM-specification Komatsu Bushing. Part number 21K7021820. Genuine OEM-spec Komatsu aftermarket part.
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Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
