VolvoHydraulic Parts

20569930 — Compressor Cylinder Head Complete 4127049332 20569930 For Volvo Fm9 Fm12 Fh16 Fh12 Nh12 Renault 480 Truck

This complete compressor cylinder head is a vital part of the air brake system, housing the valves that control the intake and exhaust of air during the compression cycle. It is manufactured to precise tolerances to ensure efficient air compression and sealing, unlike a worn head with cracked surfaces or damaged valve seats that lead to air leaks. Operators may experience a prolonged air build-up time, audible air leaks from the compressor area, or the air system failing to maintain adequate pressure.

Compressor Cylinder Head Complete 4127049332 20569930 For Volvo Fm9 Fm12 Fh16 Fh12 Nh12 Renault 480 Truck – Part No 20569930 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 TypeCompressor Cylinder Head
MaterialCast iron
ApplicationAir brake compressor system
Service LifeReplace as needed based on inspection
CompatibilityVolvo/Renault specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The most common initial symptom of a faulty compressor cylinder head is a noticeable increase in the time it takes for the air brake system to build pressure. If ignored, air leaks will become more pronounced, potentially leading to the compressor running continuously without reaching full pressure. The critical risk is the inability to maintain sufficient air pressure for safe braking, compromising vehicle safety.

Installation Tip

Ensure the mounting surfaces on the compressor block are perfectly clean and free of old gasket material before installing the new cylinder head. Do not overtighten the head bolts, as uneven pressure can warp the head or damage the threads.

Service Note

Inspect the air dryer, air lines, and pressure protection valve for proper operation when replacing the compressor cylinder head.