CATBearing & Bushing

8D7996 Bearing — Cat 320C 320D

This is a high-quality bearing engineered to support rotational forces and reduce friction within the hydraulic or power train systems of Caterpillar excavators and loaders. It is manufactured to meet strict OEM standards, offering enhanced durability and load capacity over a worn bearing that would exhibit increased noise and play. Operators may notice hydraulic system sluggishness, unusual noises from the drive train, or excessive heat buildup around the affected component when this bearing fails.

Bearing – Part No 8D7996 – 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

7K0421
Bearing
9T0766
Bearing
5I7785
Main Bearing Kit
WaterBottle 1
Bearing
3311521
Bearing
4D3848
1B3931

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 TypeBearing
MaterialHardened Steel
ApplicationHydraulic System / Power Train
Service LifeReplace based on inspection or component overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing 8D7996 bearing may initially manifest as a subtle whine or hum that intensifies with engine speed or hydraulic load. If ignored, the bearing will degrade further, causing increased vibration and potentially affecting the performance of the hydraulic system or drivetrain. Continued operation risks significant damage to the pump, motor, or final drive assembly.

Installation Tip

Before installing, meticulously clean the bearing seat in the housing and the shaft surface to prevent any grit from causing damage. Ensure the bearing is pressed in perfectly square to avoid cocking the races, which can lead to premature failure.

Service Note

When replacing this bearing, inspect the seals and any associated gears or shafts for wear or damage that could have contributed to the bearing's failure.