CATUndercarriage

0931558 Piston — Cat 307 307B

This piston is a vital component within the engine's combustion chamber, converting the force of expanding gases into mechanical motion to drive the crankshaft. It is manufactured to meet strict OEM quality benchmarks, offering superior resilience and sealing compared to worn pistons that may exhibit scoring or reduced compression. Operators might observe a noticeable loss of engine power, increased exhaust emissions, or rough engine running when a piston begins to fail.

Piston – Part No 0931558 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

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

Part TypeEngine Piston
MaterialCast Aluminum Alloy
ApplicationInternal Combustion Engine
Service LifeReplace as needed based on engine condition
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of piston failure can include a subtle reduction in engine power and a slight increase in exhaust smoke. If the issue persists, it can lead to noticeable engine misfires and increased oil consumption. Ignoring a failing piston risks significant damage to the cylinder head and crankshaft.

Installation Tip

Ensure the cylinder bore is perfectly clean and free from any debris or imperfections before installing the piston. Never use excessive force to seat the piston, as this can cause damage to the piston skirt or the cylinder wall.

Service Note

Inspect cylinder liners, connecting rod bearings, and piston rings for wear when replacing pistons.