CATHydraulic Parts

0L1351 Cap Screw — Cat 320C 320D

This is a high-strength cap screw used for securing components within the hydraulic system of Caterpillar equipment. Manufactured to meet rigorous OEM material and dimensional standards, it offers superior tensile strength and corrosion resistance compared to worn or damaged fasteners. Operators might observe hydraulic fluid leaks around a connection point or a loose component if this cap screw fails or is missing.

Cap Screw – Part No 0L1351 – 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-strength steel
ApplicationHydraulic System Component Fastening
Service LifeReplace as needed or during component overhaul
CompatibilityCaterpillar 320C, 320D, 323D, 325D, 329E
ConditionNew — OEM specification aftermarket

Failure Symptoms

A loose or missing cap screw may initially cause a slight hydraulic fluid weep at the connection point. If left unaddressed, the leak can worsen, leading to a significant loss of hydraulic fluid and pressure. The ultimate risk is the failure of the connected hydraulic component due to insufficient fluid or pressure.

Installation Tip

Ensure the mating surfaces are clean and free of old sealant or debris before installing the cap screw. Avoid using excessive force when tightening, as this can strip the threads or damage the component.

Service Note

When replacing a cap screw, inspect the threads in the component for damage and check the condition of any associated seals or gaskets.