CATEngine Parts

1555271 Skirt-Piston — Cat 797

This piston skirt is a critical component of the engine's reciprocating assembly, designed to reduce friction and wear within the cylinder bore. It is manufactured to stringent material standards, ensuring superior durability and heat resistance compared to a worn or scored skirt. Operators may observe increased oil consumption, blue smoke from the exhaust, and a noticeable loss of engine power when this part begins to fail.

Skirt-Piston – Part No 1555271 – 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 TypePiston Skirt
MaterialCast Iron Alloy
ApplicationEngine Piston Assembly
Service LifeReplace as part of engine overhaul or when signs of wear appear
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing piston skirt include increased blow-by and a slight reduction in engine performance. If left unaddressed, the skirt can wear excessively, leading to increased oil consumption and potential piston slap noise. Continued operation with a damaged skirt risks accelerated wear on cylinder liners and other critical engine components.

Installation Tip

Ensure the cylinder bore is thoroughly cleaned and inspected for any scoring before installing the new skirt. Avoid forcing the skirt onto the piston, as this can cause damage to the skirt or piston itself.

Service Note

Always inspect the cylinder liner, piston rings, and connecting rod bearings for wear when replacing a piston skirt.