CATBrake Parts

6D1039 Valve As — Cat 611 613b

This is a valve assembly, a crucial component within the braking system responsible for controlling hydraulic fluid flow to actuate the brakes. Manufactured to high standards, it ensures precise operation and longevity, outperforming worn valves that may stick or leak. Operators might observe a delayed brake response, brake drag, or a loss of braking power when this valve assembly is malfunctioning.

Valve As – Part No 6D1039 – 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 TypeValve Assembly
MaterialSteel and rubber seals
ApplicationBrake system control
Service LifeReplace as needed based on performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indicators of a faulty valve assembly include inconsistent brake application or a soft brake pedal. If ignored, the issue can progress to brake drag, where brakes remain partially applied, or a complete loss of braking force. This significantly increases the risk of uncontrolled movement or inability to stop the equipment.

Installation Tip

Ensure all hydraulic lines are properly cleaned before connecting them to the new valve assembly to prevent contamination. Do not force connections; ensure proper alignment to avoid cross-threading or damaging the valve ports.

Service Note

Inspect brake lines for leaks or damage and check the brake fluid level and condition.