CATBrake Parts

6Y1363 Disc-Friction — Cat 631E 637E

This friction disc is a critical component within the brake system, designed to engage and disengage power transmission. It is manufactured to meet stringent quality standards, ensuring superior performance and durability compared to worn or damaged discs which exhibit reduced friction material and potential warping. Operators may notice a spongy brake pedal, delayed stopping power, or unusual noises during braking when this part begins to fail.

Disc-Friction – Part No 6Y1363 – 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
MaterialSintered Bronze Composite
ApplicationBrake System
Service LifeReplace based on wear inspection, typically every 4,000 hrs
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing friction disc include a gradual increase in braking distance and a slight sponginess in the brake pedal. If left unaddressed, the braking performance will continue to degrade, potentially leading to overheating of the brake system. Continued operation with a worn friction disc risks compromised stopping ability in critical situations.

Installation Tip

Ensure the brake housing is thoroughly cleaned of all old friction material and fluid residue before installation. Avoid overtightening fasteners, as this can warp the disc and lead to premature failure.

Service Note

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