CATBrake Parts

5t6617 Cylinder A — Cat

This is a brake cylinder that acts as the primary actuator for the braking system, converting hydraulic pressure into mechanical force to engage the brake pads. It is manufactured to meet stringent quality standards, ensuring reliable performance and durability compared to a worn or seized cylinder. Operators may notice a spongy brake pedal, reduced braking effectiveness, or a complete loss of braking power when this component fails.

Cylinder A – Part No 5t6617 – 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 TypeBrake Master Cylinder
MaterialCast iron and rubber seals
ApplicationBrake hydraulic system
Service LifeReplace every 3,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A spongy or soft brake pedal is often the first sign of a failing brake master cylinder. If ignored, braking performance will continue to degrade, potentially leading to extended stopping distances. In severe cases, the loss of hydraulic pressure can result in a complete inability to stop the equipment safely.

Installation Tip

Ensure the brake fluid reservoir is clean before filling to prevent contamination. Avoid overtightening brake line fittings, as this can strip threads or crack the cylinder ports.

Service Note

Inspect brake fluid, brake lines, and brake pads/shoes for wear or damage when replacing the master cylinder.