VolvoHydraulic Parts

FPZY2412189 — Brake Relay Traction Valve K070951 K078420 For Volvo Bendix Atr-6

This brake relay traction valve is a critical component in the air brake system of Volvo trucks, controlling air flow to the brake chambers for smooth and responsive braking. Manufactured to high standards, it ensures consistent air pressure modulation, unlike a worn valve that might leak or respond slowly. Operators may notice delayed brake application, reduced braking effectiveness, or air leaks if this valve is faulty.

Brake Relay Traction Valve K070951 K078420 For Volvo Bendix Atr-6 – Part No FPZY2412189 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryHydraulic 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

Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeBrake Relay Traction Valve
MaterialAluminum Alloy and Rubber
ApplicationAir Brake System Control
Service LifeReplace based on inspection or performance issues
CompatibilityVolvo Bendix ATR-6
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first symptom of a failing brake relay traction valve is often a noticeable delay in brake response when the pedal is applied. If the problem persists, braking effectiveness will diminish, and the truck may pull to one side during braking. In severe cases, the air system may not hold pressure, leading to a significant reduction in stopping power.

Installation Tip

Ensure all air lines are properly disconnected and reconnected to the correct ports on the new valve to avoid air leaks. Check for any kinks or damage in the air lines before and after installation.

Service Note

Inspect the air dryer and air tanks for moisture and debris, and check all other air system valves for proper operation.