CATHydraulic Parts

2418388 Valve Seat Insert (Inlet) — Cat 140M 140M 2

This valve seat insert serves as a crucial sealing surface for the inlet valve within the engine's cylinder head, ensuring optimal combustion. Manufactured to meet stringent OEM quality standards, it provides superior durability and sealing performance compared to worn or damaged seats that can compromise engine efficiency. Operators may observe a loss of engine power, rough idling, or increased exhaust emissions as indicators of a failing valve seat.

Valve Seat Insert (Inlet) – Part No 2418388 – CAT Spare Part
Part Specifications
BrandCAT
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 TypeValve Seat Insert (Inlet)
MaterialHardened Steel Alloy
ApplicationEngine Cylinder Head
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing inlet valve seat insert can initially manifest as a slight reduction in engine power or a less smooth idle. As the wear progresses, the sealing ability diminishes, leading to more significant power loss and increased fuel consumption. Continued operation with a compromised valve seat risks improper combustion and potential damage to the piston and cylinder wall.

Installation Tip

Ensure the valve seat pocket in the cylinder head is perfectly clean and free from any debris or old sealant before attempting installation. Use a specialized valve seat installer tool to press the insert in squarely, avoiding any tilting that could damage the seat or head.

Service Note

When replacing the valve seat insert, it is essential to inspect the corresponding inlet valve and valve guide for wear and proper seating.