CATBearing & Bushing

7K0078 Bearing — Cat 325D

This is a high-quality bearing designed to ensure smooth rotation and support significant loads in hydraulic and powertrain systems. Manufactured to meet Caterpillar's rigorous performance and durability standards, it provides superior longevity and operational efficiency compared to a worn or damaged bearing. Operators may observe increased noise, vibration, or a loss of hydraulic power when this bearing begins to fail.

Bearing – Part No 7K0078 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

dispatch before 3 PM IST.', };

Related CAT Parts

From the same category — may also be needed

3D6222
Bearing
cUP03
Bearing
7M5337
Guard Assem. (R.H.)
1058743
Bearing
7M5338
Guard Assem. (L.H.)
4P9944
Bearing

Browse all CAT Bearing Bushing →

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 TypeHeavy Duty Bearing
MaterialSteel alloy
ApplicationHydraulic Pump/Motor, Powertrain
Service LifeReplace based on inspection or 3,000-5,000 hrs
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing 7K0078 bearing may initially produce a whining or grinding sound, particularly under load. If ignored, this can lead to increased vibration, reduced hydraulic system efficiency, or potential seizure of the pump or motor. This can result in a loss of critical machine functions and costly repairs.

Installation Tip

Ensure the bearing housing and the bearing surfaces are meticulously cleaned and free from any debris or old lubricant before assembly. Never apply force to the outer race when installing onto a shaft; use a proper bearing press or appropriate driver.

Service Note

When replacing this bearing, inspect the shaft, housing, and any associated seals for wear or damage.