CATBrake Parts

5M1199 Disc Assem — Cat 977H 977k

This is a disc assembly crucial for the braking system, providing the necessary friction surfaces for effective deceleration. Manufactured to high standards, it ensures reliable performance and longevity, distinguishing itself from worn assemblies that may show signs of glazing or material loss. Operators might observe a gradual decrease in braking power, unusual noises during braking, or the brake warning light illuminating when this assembly is failing.

Disc Assem – Part No 5M1199 – 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 TypeDisc Assembly
MaterialHigh-friction composite and steel
ApplicationBrake system
Service LifeReplace based on wear inspection, typically every 2,000-4,000 hours
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing disc assembly may initially present as reduced braking force or a tendency for the brakes to drag. If left unaddressed, the braking system's effectiveness will continue to diminish, potentially leading to overheating and damage to other brake components. Inadequate braking capability poses a significant risk to operational safety and equipment control.

Installation Tip

Always ensure that the friction surfaces of the new discs and the mating plates are clean and free from any grease or oil before assembly. Avoid mixing old and new friction discs within the same brake pack, as this can lead to uneven wear and performance issues.

Service Note

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