VolvoEngine Parts

20578932 Exhaust Manifold — Volvo FH12 FH16

This exhaust manifold is a critical engine component that collects exhaust gases from multiple cylinders and directs them into a single pipe. It is engineered to withstand extreme temperatures and pressures, ensuring efficient exhaust flow and preventing leaks that could compromise engine performance. A failing manifold may exhibit visible cracks or severe discoloration, leading to audible exhaust leaks, reduced engine power, and potentially increased fuel consumption.

Exhaust Manifold – Part No 20578932 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine 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

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

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

Part TypeExhaust Manifold
MaterialCast Iron
ApplicationEngine Exhaust System
Service LifeReplace as needed based on inspection
CompatibilityVolvo FH12, FH16, FH 420, FH 460, FH 500
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing exhaust manifold is often an audible ticking or puffing sound from the engine, especially when cold. If ignored, the exhaust leak can worsen, leading to a noticeable loss of engine power and increased exhaust fumes entering the cabin. Continued operation with a leaking manifold can cause further damage to related engine components and reduce overall fuel efficiency.

Installation Tip

Ensure the cylinder head mating surface is perfectly clean and free of old gasket material before installation. Overtightening the manifold bolts can lead to warping or cracking, so follow the manufacturer's recommended tightening sequence and torque specifications.

Service Note

Always inspect and replace exhaust manifold gaskets, and check the condition of the turbocharger and exhaust pipes.