CATBrake Parts

6Y7957 Disc-Friction — Cat 414E 416

This friction disc is a vital component within the transmission or brake system, responsible for transmitting or modulating torque through friction. It is constructed with high-grade friction material bonded to a robust steel core, offering consistent performance and durability over a worn or contaminated disc. Operators may experience delayed engagement, slipping under load, or shuddering during operation when this part is nearing the end of its service life.

Disc-Friction – Part No 6Y7957 – 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
MaterialFriction material on steel backing
ApplicationTransmission/Brake system
Service LifeReplace as needed based on wear inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a failing friction disc include a noticeable delay in power engagement, a slight shudder during acceleration, or a burning smell from the transmission. If ignored, the disc will continue to wear, leading to increased slipping, loss of power, and potential overheating of the transmission fluid. Continued operation risks severe damage to the transmission clutch pack and other internal components.

Installation Tip

Ensure all friction and steel plates are soaked in the correct transmission fluid before installation to prevent initial dry engagement. Verify that the clutch pack stack height is within specifications.

Service Note

Inspect steel plates, seals, and transmission fluid for wear or contamination when replacing friction discs.