CATBearing & Bushing

9k-3970 Universal Joint — Cat 3306

This universal joint is a critical component in the driveline system, designed to transmit rotational power between misaligned shafts. It ensures smooth power transfer even when the angle between connected components changes during operation. A worn universal joint will exhibit excessive play, leading to clunking noises and vibration, making it difficult to maintain consistent power delivery.

Universal Joint – Part No 9k-3970 – 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 TypeUniversal Joint
MaterialForged steel
ApplicationDriveline system
Service LifeReplace every 3,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing universal joint is often a noticeable clunking sound when engaging or disengaging power. If left unaddressed, this can progress to severe vibration and potential loss of drive power. Continued operation with a worn universal joint risks damage to connected components like yokes and driveshafts.

Installation Tip

Ensure the bearing caps are properly seated and the snap rings are fully engaged before tightening. Avoid over-tightening the mounting bolts, as this can distort the bearing surfaces.

Service Note

Inspect the driveshaft and associated yokes for signs of wear or damage when replacing the universal joint.