CATEngine Parts

1400693H91 O-Ring Kit Komatsu® — Cat 320C 320D

This O-ring kit provides essential sealing components for various engine and hydraulic systems, preventing leaks and maintaining system pressure. Each O-ring is manufactured from durable, oil-resistant materials to meet strict sealing performance standards, ensuring a longer service life than worn or cracked original seals. Operators may notice fluid leaks, reduced hydraulic system performance, or contamination of fluids when these O-rings begin to degrade.

O-Ring Kit Komatsu® – Part No 1400693H91 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine 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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeO-Ring Kit
MaterialNBR Rubber
ApplicationEngine and Hydraulic Systems
Service LifeReplace when components are disassembled or when leaks are detected
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first sign of failing O-rings is typically visible fluid leakage around seals and connections. If ignored, these leaks can lead to a gradual loss of system pressure and performance, potentially causing component damage. Unaddressed leaks can result in significant hydraulic system downtime and costly repairs.

Installation Tip

Always lubricate O-rings with a compatible fluid or lubricant before installation to prevent tearing. Ensure the sealing groove is clean and free of any debris or burrs.

Service Note

Inspect the mating surfaces for damage or wear and clean all fluid passages when replacing O-rings.