CATEngine Parts

103-9680 Connecting Rod — Cat 3044C 3046

This connecting rod is a vital link within the engine, transferring the force from the piston's linear motion to the crankshaft's rotational motion. Forged from high-strength steel and precisely machined, it ensures reliable power transfer, unlike a worn rod with elongated bearing bores or a cracked structure. Operators may notice a distinct knocking or rattling sound from the engine, especially under load, and potentially a drop in oil pressure when a connecting rod begins to fail.

Connecting Rod – Part No 103-9680 – 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 worn
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The primary symptom of a failing connecting rod is a loud, rhythmic knocking sound from the engine, which often intensifies with engine speed. Continued operation can lead to severe damage to the crankshaft and cylinder walls, potentially causing the rod to break free from the engine block. This can result in extensive and costly engine damage.

Installation Tip

Always use new connecting rod bolts and nuts, and torque them to the manufacturer's specifications in the correct sequence. Ensure the connecting rod bearing surfaces are perfectly clean and lubricated before assembly.

Service Note

Inspect the crankshaft journals, connecting rod bearings, and piston pin bushings for wear or damage when replacing the connecting rod.