CATBearing & Bushing

7J1309 Bearing — Cat 320C

This component is a vital engine bearing designed to support the crankshaft, facilitating smooth rotation and minimizing friction within the engine. Manufactured to meet rigorous OEM material and dimensional specifications, it offers superior durability compared to a worn or damaged bearing. Observable signs of a failing bearing include a distinct knocking sound from the engine, especially under load, and a potential drop in oil pressure.

Bearing – Part No 7J1309 – 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 TypeEngine Bearing
MaterialSteel-backed babbitt alloy
ApplicationEngine crankshaft journals
Service LifeReplace based on engine overhaul schedule or inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indications of a worn main bearing may include a persistent knocking sound that intensifies with engine speed and load. If ignored, this can lead to accelerated wear on the crankshaft and potentially compromise the structural integrity of the engine block. Continued operation risks severe internal engine damage.

Installation Tip

Thoroughly clean the crankshaft journals and the bearing housings in the engine block to remove all traces of old material and oil residue. Ensure the new bearings are correctly oriented and do not force them into place, as this can cause damage.

Service Note

Inspect the crankshaft for any signs of scoring or out-of-roundness, and ensure all oil passages are clear.