CATExhaust & Turbo

251-8256 Manifold — Cat 120M 12M

This manifold is a crucial component of the engine's exhaust system, collecting exhaust gases from multiple cylinders and directing them to the turbocharger or exhaust pipe. Manufactured to meet stringent material and dimensional standards, it provides superior resistance to high temperatures and thermal cycling compared to a warped or cracked manifold. Operators might observe a noticeable increase in exhaust noise, a loss of engine power, or visible exhaust leaks from the engine block if this part fails.

Manifold – Part No 251-8256 – CAT Spare Part
Part Specifications
BrandCAT
CategoryExhaust & Turbo
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

Allow turbo to idle 2–3 minutes before shutdown — this circulates oil through bearings and prevents coking. Check oil feed and drain lines for blockages before fitting new turbo. Replace oil and filter when fitting new turbo — old oil contains metal particles.

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
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing exhaust manifold may initially manifest as a ticking or puffing sound from the engine, especially when cold, or a slight exhaust odor. If left unaddressed, cracks can widen, causing significant exhaust leaks, reduced turbocharger efficiency, and potential overheating of engine components. Continued operation risks engine damage and exposure to harmful exhaust gases.

Installation Tip

Ensure the cylinder head exhaust ports are perfectly clean and free of carbon buildup before installing the new manifold. Always use new gaskets and torque the manifold bolts in a crisscross pattern to ensure even pressure distribution.

Service Note

When replacing the exhaust manifold, inspect the turbocharger and exhaust system connections for any signs of leaks or damage.