CATHydraulic Parts

1W5283 Valve Seat Insert (Exhaust) — Cat 16G 16H NA

This is an exhaust valve seat insert, a vital component in the engine's cylinder head that forms the sealing surface for the exhaust valve. It is engineered to withstand high temperatures and pressures, ensuring an effective seal for optimal engine power and emissions control. Failure symptoms include exhaust leaks, loss of engine power, backfiring, and increased oil consumption.

Valve Seat Insert (Exhaust) – Part No 1W5283 – 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 (Exhaust)
MaterialHigh-temperature alloy steel
ApplicationEngine cylinder head (exhaust)
Service LifeReplace as needed during engine overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing exhaust valve seat may include a slight loss of engine power or an audible exhaust leak. If ignored, this can lead to persistent misfires, rough running, increased fuel consumption, and potential damage to the exhaust system or turbocharger. Continued operation risks significant performance degradation and potential engine damage.

Installation Tip

Ensure the valve seat pocket in the cylinder head is meticulously cleaned and free of carbon deposits before installation. Use the correct installation method, such as induction heating or a specialized press, to avoid damaging the insert or the head.

Service Note

Check the corresponding exhaust valve and valve guide for wear and proper sealing when replacing the valve seat insert.