CATEngine Parts

2W9779 Manifold Gp-Exhaust — Cat 3412

This exhaust manifold is a critical component of the engine's exhaust system, directing burnt gases away from the cylinders and towards the exhaust stack. Manufactured to meet stringent OEM standards, it offers superior durability and resistance to thermal stress compared to worn or cracked manifolds. Operators may notice a significant increase in exhaust noise, a loss of engine power, or visible exhaust leaks around the cylinder head when this part fails.

Manifold Gp-Exhaust – Part No 2W9779 – CAT Spare Part
Part Specifications
BrandCAT
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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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 Assembly
MaterialCast Iron
ApplicationEngine Exhaust System
Service LifeReplace when cracked or leaking
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing exhaust manifold is often an audible increase in exhaust noise or a noticeable loss of engine power. If left unaddressed, the cracks can worsen, leading to more significant exhaust leaks and potential overheating of engine components. Continued operation with a severely damaged manifold risks internal engine contamination and reduced efficiency.

Installation Tip

Ensure the cylinder head exhaust ports are thoroughly cleaned of all old gasket material and carbon buildup before installing the new manifold. Overtightening the manifold bolts can cause the manifold to warp or crack, so follow the recommended tightening sequence and torque specifications.

Service Note

Inspect and replace exhaust manifold gaskets, studs, and nuts as needed.