CATBearing & Bushing

1S9873 Rod Assem — Cat 120g 130g

This is a CAT 1S9873 Rod Assembly, a crucial linkage component that transmits force between the piston and the crankshaft in an engine or hydraulic system. Manufactured to meet strict OEM quality standards, it provides robust performance and durability, unlike a worn or bent rod assembly which can lead to misalignment and premature failure. Operators may notice increased engine noise, vibration, or a loss of power when this assembly is compromised.

Rod Assem – Part No 1S9873 – 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 TypeRod Assembly
MaterialForged steel
ApplicationEngine or hydraulic system linkage
Service LifeReplace based on inspection or engine overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing 1S9873 rod assembly can include knocking sounds from the engine or hydraulic system, accompanied by a noticeable loss of power. If ignored, the assembly can bend or break, leading to severe internal damage to the engine block or hydraulic pump. Continued operation risks catastrophic mechanical failure and extensive component damage.

Installation Tip

Ensure the connecting rod cap bolts are torqued to the manufacturer's specifications using a calibrated torque wrench. Verify the alignment of the rod assembly before final installation to prevent binding.

Service Note

When replacing a rod assembly, always inspect and replace the connecting rod bearings and bolts, and check the crankshaft for any scoring or damage.