CATHydraulic Parts

1W4259 Spring-Valve — Cat 215 926

This is a Valve Spring, a crucial component in the engine's valvetrain responsible for closing the intake and exhaust valves after they have been opened by the camshaft. Manufactured with high-grade steel alloys, it provides consistent tension and durability, unlike a weakened or broken spring that can cause valve float. Operators may notice a significant loss of engine power, rough idling, or audible valve train noise when these springs begin to fail.

Spring-Valve – Part No 1W4259 – 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 TypeEngine Valve Spring
MaterialHigh-Tensile Spring Steel
ApplicationEngine Valvetrain
Service LifeReplace every 10,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing valve spring can be a slight decrease in engine performance or a subtle increase in valve train noise. If ignored, the engine may start to misfire, especially at higher RPMs, due to improper valve seating. Continued operation risks valve-to-piston contact, which can lead to severe engine damage.

Installation Tip

Ensure the valve seats are clean and free of carbon buildup before installing new springs. Avoid using excessive force when compressing the spring during installation, as this can damage the spring or surrounding components.

Service Note

When replacing valve springs, it is advisable to inspect the valve guides, seals, and camshaft lobes for wear.