CATBrake Parts

9W9856 Disc As-Friction — Cat 589 824c

This friction disc is a key element in the power train or brake system, providing the necessary friction surface for torque transfer or stopping. It is manufactured to precise material and dimensional specifications, ensuring consistent engagement and durability compared to a worn or glazed disc. Operators may experience slipping, delayed engagement, or overheating if this friction disc fails to perform correctly.

Disc As-Friction – Part No 9W9856 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBrake Parts
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

Always replace brakes in axle sets. Bed-in new brake pads with 8–10 moderate stops from 40 km/h. Check disc runout with a dial gauge — maximum 0.1 mm. Inspect caliper slides and pistons when replacing pads.

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

Part TypeFriction Disc
MaterialHigh-friction composite material
ApplicationClutch or Brake System
Service LifeReplace based on operational hours and load
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Slipping under load, where engine RPM increases but equipment speed does not, is a primary symptom of a worn friction disc. If ignored, the disc can overheat and disintegrate, leading to a complete loss of power transmission or braking capability. The risk is immobilization of the equipment and potential damage to adjacent transmission or brake components.

Installation Tip

Ensure all mating surfaces are perfectly clean and free of oil or grease before installation to achieve proper friction. Do not mix old and new discs if replacing multiple discs in a pack; install them as a complete set.

Service Note

Inspect the clutch or brake plates, seals, and hydraulic fluid for contamination or wear when replacing the friction disc.