CATEngine Parts

5i-7668 Connecting Rod — Cat 3064 3066

This is a connecting rod, a critical component that transmits force from the piston to the crankshaft in an internal combustion engine. Manufactured to meet stringent OEM material and dimensional specifications, it offers superior strength and fatigue resistance compared to a worn or bent rod. Operators may experience distinct knocking sounds from the engine, a loss of engine power, or excessive engine vibration when this part fails.

Connecting Rod – Part No 5i-7668 – 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 TypeConnecting Rod
MaterialForged steel
ApplicationEngine crankshaft and piston assembly
Service LifeReplace if damaged or during engine overhaul
CompatibilityCAT specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing connecting rod is often a sharp, metallic knocking sound originating from the engine, particularly under load. If ignored, the rod may develop excessive play, leading to increased vibration and a significant loss of engine power. Continued operation can result in the rod breaking, causing severe internal engine damage.

Installation Tip

Ensure the connecting rod cap bolts are torqued to the manufacturer's specifications using a calibrated torque wrench. Never reuse old connecting rod bolts or nuts, as they can stretch and lead to improper clamping force.

Service Note

Always inspect the cylinder bore, piston, and crankshaft journal for wear or damage when replacing a connecting rod.