CATBearing & Bushing

7e4729 Piston Body — Cat 953 D5C

This piston body is a core component within an engine's hydraulic or pneumatic system, designed to move within a cylinder to generate force or displacement. It is precision-machined to maintain sealing and efficient power transfer, unlike a worn or damaged piston body that can cause leaks and reduced performance. Operators may observe a loss of power, erratic operation, or increased oil consumption when this component fails.

Piston Body – Part No 7e4729 – 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
MaterialSteel alloy
ApplicationEngine hydraulic/pneumatic system
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early signs of a failing piston body include a noticeable drop in engine power and increased exhaust smoke. If ignored, this can lead to increased oil consumption, rough idling, and potential blow-by, compromising engine efficiency. Continued operation with a damaged piston body risks severe internal engine damage and potential seizure.

Installation Tip

Ensure the cylinder bore is perfectly clean and lubricated with assembly oil before inserting the piston body. Never force the piston into the cylinder; it should slide smoothly with minimal resistance.

Service Note

Inspect the cylinder liner for scoring or ovality, and check the piston rings for wear, breakage, or sticking.