KomatsuGround Engaging Tools

4N4398 Piston As — Komatsu 3304 3306

OEM-specification Komatsu Piston As. CTP aftermarket replacement. Part number 4N4398. Compatible with 3304, 3306, 3406, 3406B, 3408, 3412, 768B, 769, 772, 777, D342, D342C, D348, D353C, D379A, D379B, G3304, G343, G379, G399.

Piston As – Part No 4N4398 – Komatsu Spare Part
Part Specifications
BrandKomatsu
CategoryGround Engaging Tools
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

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.