CATBearing & Bushing

1L7519 4B-8394 — Cat 518C D4HTSK III

This is a precision-engineered bearing that facilitates smooth, low-friction rotation within critical machinery components, such as the drivetrain or undercarriage. Manufactured to meet stringent OEM quality standards, it provides superior longevity and performance over a worn bearing that would exhibit increased play and generate excessive heat. Operators may detect unusual noises, excessive vibration, or a loss of power in the affected system when this bearing begins to fail.

4B-8394 – Part No 1L7519 – CAT Spare Part
Part Specifications
BrandCAT
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.

Part TypeBearing
MaterialSteel alloy
ApplicationDrivetrain/Undercarriage
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indicators of failure include a subtle increase in operating noise or a slight increase in component temperature. If ignored, the bearing can seize, leading to potential damage to the shaft and surrounding components, resulting in significant operational impairment. Continued use with a failing bearing risks costly repairs and extended equipment downtime.

Installation Tip

Ensure the bearing seat is meticulously clean and free from any foreign particles before installation. Never attempt to force the bearing into place; use a proper bearing installer or press to ensure even seating.

Service Note

Inspect the condition of the mating shaft and housing for any signs of wear or damage during the bearing replacement.