CATHydraulic Parts

0S1587 Cap Screw - Oil Coated — Cat 320C 320D

This cap screw is a critical fastener for securing hydraulic components, ensuring proper sealing and structural integrity within the hydraulic system. It is manufactured to meet stringent Caterpillar specifications, offering superior corrosion resistance and tensile strength compared to worn or damaged fasteners. Failure to maintain proper torque on this screw can lead to hydraulic fluid leaks and compromised component mounting, potentially causing erratic system performance.

Cap Screw - Oil Coated – Part No 0S1587 – 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
MaterialSteel, oil coated
ApplicationHydraulic system component mounting
Service LifeReplace as needed during hydraulic component service
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A loose or missing cap screw may initially cause minor hydraulic fluid weeping around the affected component. If left unaddressed, the leak can worsen, leading to a gradual loss of hydraulic pressure and system responsiveness. Continued operation with a compromised fastener risks improper component seating and potential damage to adjacent parts.

Installation Tip

Ensure the mating surfaces of the component and the machine are clean and free of debris before installation. Overtightening can strip threads or damage the component, while undertightening can lead to leaks.

Service Note

Inspect the mating surface of the hydraulic component for any signs of damage or wear when replacing this cap screw.