CATEngine Parts

2203373 Seal-Ring — Cat 140H 143H

This is a Seal-Ring, a vital component used to prevent leakage of fluids or gases within various engine systems, such as the fuel or hydraulic circuits. Manufactured from high-grade materials, it provides a reliable seal that maintains system pressure and integrity, unlike a brittle or cracked old seal. Operators may observe external fluid leaks, reduced system performance, or contamination if this seal fails.

Seal-Ring – Part No 2203373 – 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 Ring
MaterialNBR Rubber
ApplicationEngine Systems (Fuel, Hydraulic, etc.)
Service LifeReplace as needed during component service
CompatibilityCAT 140H, 143H, 14H, 14M, 160H
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first indication of a failing seal ring is often a visible fluid leak around the component it seals. If ignored, the leak may worsen, leading to a gradual loss of system pressure and reduced operational efficiency. In critical systems, a complete seal failure could result in significant fluid loss, potentially causing component damage or system malfunction.

Installation Tip

Carefully inspect the sealing groove for any burrs or damage, and ensure the new seal is properly seated without twisting. Avoid using sharp tools that could nick or cut the seal during installation.

Service Note

Clean the sealing surfaces thoroughly and inspect the mating component for wear or damage when replacing a seal ring.