CATBearing & Bushing

9Y3116 Body A Piston — Cat Engine: 3406B

This is a Body A Piston, a critical component within the engine's lubrication system that regulates oil flow to the crankshaft bearings. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to worn or damaged pistons. Operators may notice a loss of engine power, increased oil consumption, or unusual engine noises when this piston begins to fail.

Body A Piston – Part No 9Y3116 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBearing & Bushing
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

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

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

Part TypePiston
MaterialCast iron
ApplicationEngine lubrication system
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing Body A Piston may include a noticeable drop in engine oil pressure or increased oil consumption. If left unaddressed, the piston can lead to uneven wear on the crankshaft and connecting rod bearings. Continued operation with a compromised piston risks significant internal engine damage.

Installation Tip

Ensure the cylinder bore is thoroughly cleaned and free of any debris before installing the new piston. Avoid forcing the piston into the cylinder bore, as this can damage the piston skirt or the cylinder wall.

Service Note

Inspect the cylinder liner for wear and the connecting rod for straightness when replacing the Body A Piston.