KomatsuBearing & Bushing

7T8858 Caterpillar 7T8859 — Komatsu 517 527

OEM-specification Caterpillar 7T8859. CTP aftermarket replacement. Part number 7T8858. Compatible with 517, 527, 533, 543, 561M, 561n, 725, 730, D250e ii, D300e ii, D350e ii, D4H, D4H XL, D4HTsK ii, D4HTsK iii, D5H, D5H XL, D5HTsK ii, D5M, D5n, D6M, D6n, Ha770, Ha771, Ha870, Ha871, TK370, TK371, TK3

Caterpillar 7T8859 – Part No 7T8858 – Komatsu Spare Part
Part Specifications
BrandKomatsu
CategoryBearing & Bushing
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

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.