CATBearing & Bushing

9N5250 Piston Body — Cat D7F Engine: 3304

This is a critical Piston Body component that forms part of the piston assembly within an engine, responsible for transmitting combustion forces to the crankshaft. Manufactured to meet stringent quality standards, it offers superior strength and dimensional accuracy compared to a worn or damaged piston body. Operators may notice a loss of engine power, increased exhaust smoke, or rough engine running when this component begins to fail.

Piston Body – Part No 9N5250 – 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 Body
MaterialAluminum alloy or cast iron
ApplicationEngine cylinder assembly
Service LifeReplace as part of engine overhaul or if damaged
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early signs of a failing piston body can include a noticeable drop in engine power and increased fuel consumption. As the issue progresses, you might observe excessive blue or black exhaust smoke and audible knocking sounds from the engine. Continued operation risks severe internal engine damage, potentially leading to a complete engine failure.

Installation Tip

Ensure the cylinder bore is honed and cleaned according to specifications before installing the new piston body. Never reuse old piston rings; always install new rings with the new piston body.

Service Note

Replace piston rings, inspect cylinder liners for wear, and check connecting rod bearings when installing a new piston body.