CATEngine Parts

1930784 Seal — Cat 303 304

This is a CAT Seal, a crucial component designed to prevent leakage of fluids or contaminants within various machine systems, such as the engine or hydraulic circuits. Manufactured to meet stringent OEM quality standards, it provides a reliable barrier against internal and external environmental factors, unlike worn seals that allow fluid loss and contamination. Operators may notice fluid leaks around the sealed component, decreased system performance, or the presence of external contaminants within the system when this seal begins to fail.

Seal – Part No 1930784 – 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 TypeSeal
MaterialNBR Rubber / Viton
ApplicationVarious Systems (Engine, Hydraulic, etc.)
Service LifeReplace as needed during maintenance or if leaks are detected
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The most immediate symptom of a failing seal is visible fluid leakage from the component it is sealing. If left unaddressed, this leakage can lead to low fluid levels, causing system malfunction and potential component damage due to lack of lubrication or hydraulic pressure. Continued operation risks significant fluid loss and contamination, potentially leading to costly repairs.

Installation Tip

Ensure the surface where the seal will be installed is perfectly clean and free from any nicks or burrs. Lubricate the seal lip lightly with the appropriate fluid before installation to prevent damage during insertion.

Service Note

Always inspect the shaft or bore surface for scoring or wear when replacing a seal, as this can compromise the new seal's effectiveness.