CATHydraulic Parts

0L0478 Cap Screw — Cat 320C 320D

This is a high-strength cap screw, a critical fastener used to join hydraulic components or secure them to the machine structure. It is engineered to withstand significant tensile and shear loads within demanding hydraulic systems. A failed or improperly torqued fastener can lead to leaks, component misalignment, or structural failure.

Cap Screw – Part No 0L0478 – 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 TypeCap Screw
MaterialHigh-tensile steel alloy
ApplicationComponent mounting and assembly
Service LifeInspect for damage or wear; replace if compromised
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Loose or missing fasteners can lead to vibrations, misalignment of components, and potential leaks at mating surfaces. If a critical fastener fails, it can cause the component it secures to detach or shift, potentially leading to operational failure and damage. The risk is compromised structural integrity and component function.

Installation Tip

Always clean the threads of both the screw and the tapped hole before installation to ensure proper engagement. Use a torque wrench to tighten the screw to the manufacturer's specified value; do not rely on feel alone.

Service Note

When replacing cap screws, inspect the threaded holes for damage and ensure the components being fastened are properly aligned.