CATBrake Parts

6i8028 Disc-Friction — Cat D4H XL D4HTSK III

This friction disc is a vital element in the transmission or brake system, responsible for transferring torque or creating stopping force through friction. It is engineered to meet high performance and durability standards, offering a reliable alternative to worn discs that may have degraded friction surfaces or structural integrity issues. Operators might observe delayed engagement, slipping under load, or a noticeable decrease in braking effectiveness when this component begins to fail.

Disc-Friction – Part No 6i8028 – 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
ApplicationTransmission or Brake System
Service LifeReplace based on wear inspection, typically every 3,000 hrs
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indications of a failing friction disc include a slight delay in power engagement or a subtle increase in engine RPM without corresponding speed increase. If ignored, the slipping will worsen, leading to increased heat and potential damage to adjacent transmission or brake components. Continued use risks significant downtime and costly repairs to the drivetrain.

Installation Tip

Ensure all mating surfaces are perfectly clean and free of any grease or debris before assembly. Do not reuse old seals or O-rings, as they can compromise system integrity.

Service Note

When replacing this friction disc, it is advisable to inspect the condition of the clutch pack, pressure plates, and transmission fluid.