CATBearing & Bushing

8N3182 Body A Piston — Cat 3306

This is a CAT 8N3182 Body A Piston, a critical component within the engine's combustion system responsible for converting pressure into mechanical force. Manufactured to meet rigorous quality standards, it offers durability comparable to original equipment, unlike worn pistons which can exhibit scoring or deformation. Operators may observe reduced engine power, increased exhaust smoke, or abnormal combustion noises when this piston is compromised.

Body A Piston – Part No 8N3182 – 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
MaterialAluminum alloy
ApplicationEngine cylinder
Service LifeReplace based on engine overhaul schedule or inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indicators of a failing 8N3182 piston include a noticeable drop in engine power and increased blue or black exhaust smoke. If ignored, the piston can suffer from ring land failure or skirt scuffing, leading to severe blow-by and potential cylinder wall damage. Continued operation risks internal engine damage requiring a complete rebuild.

Installation Tip

Carefully inspect the cylinder bore for any imperfections or out-of-roundness before fitting the piston. Ensure the piston rings are correctly seated in their grooves and oriented as per the service manual.

Service Note

When replacing a piston, it is essential to inspect and potentially replace piston rings, cylinder liners, and connecting rod bearings.