CATHydraulic Parts

7S3161 Lifter-Valve — Cat 120 120G

This is a valve lifter, a crucial part of the engine's valvetrain system that actuates the valves. Manufactured to meet CAT specifications, it ensures precise timing and lift for optimal combustion efficiency, unlike a worn lifter which can cause inconsistent valve operation. Operators may notice rough idling, loss of engine power, or increased exhaust smoke if a valve lifter begins to fail.

Lifter-Valve – Part No 7S3161 – 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 Lifter
MaterialHardened steel
ApplicationEngine valvetrain
Service LifeReplace as part of engine overhaul or if worn
CompatibilityCAT 120, 120G, 12G, 12H, 12H ES
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing valve lifter may initially cause a slight ticking noise from the engine and a minor reduction in smooth idling. If left unaddressed, the lifter can cause improper valve seating, leading to significant loss of engine power and increased fuel consumption. Continued operation risks damage to the camshaft and cylinder head.

Installation Tip

Ensure the camshaft lobes and lifter bores are clean and lubricated with assembly lube before installing the new lifters. Avoid rotating the camshaft until all lifters are properly seated to prevent damage.

Service Note

Inspect the camshaft lobes and valve springs for wear or damage when replacing valve lifters.