CATEngine Parts

7k-3526 Universal Joint — Cat 3306

This is a heavy-duty universal joint designed to transmit rotational power between driveshaft components that are not perfectly aligned. It is constructed from high-strength steel to withstand significant torque and angular forces, ensuring reliable power transfer unlike a worn U-joint with excessive play. Operators may experience clunking noises during acceleration or deceleration, and a noticeable vibration from the driveline when a universal joint is failing.

Universal Joint – Part No 7k-3526 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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 power transmission
Service LifeReplace based on inspection, typically 2,000-4,000 hrs
CompatibilityCAT 3306, 3304, 920, 930, 930R
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing universal joint is often a clunking or clicking sound when shifting into gear or changing direction. This may progress to a persistent vibration felt through the machine, particularly during acceleration or deceleration. If left unaddressed, the joint can fail completely, leading to loss of drive power and potential damage to the driveshaft or surrounding components.

Installation Tip

Mark the orientation of the driveshaft components before disassembly to ensure proper reassembly and minimize driveline imbalance. Ensure the bearing caps are fully seated and the clips are securely in place before torquing.

Service Note

Inspect the driveshaft U-bolts, center support bearings, and companion flanges for any signs of wear or damage when replacing the universal joint.