CATEngine Parts

294-1749 Crankshaft — Cat 320D

This is a CAT Crankshaft, a critical rotating component within the engine that converts reciprocating piston motion into rotational force. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to a worn or damaged crankshaft. Symptoms of a failing crankshaft include unusual engine noises like knocking or grinding, a significant loss of engine power, and potentially visible oil leaks from the main bearing seals.

Crankshaft – Part No 294-1749 – 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 TypeCrankshaft
MaterialForged steel
ApplicationEngine rotating assembly
Service LifeReplace based on inspection or failure
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

An initial sign of crankshaft failure may be a persistent knocking sound from the engine, especially under load. If ignored, this can progress to severe engine vibration and a noticeable reduction in overall power output. Continued operation with a compromised crankshaft risks significant internal engine damage.

Installation Tip

Ensure the crankshaft journals are meticulously cleaned and free of any debris before installation. Avoid overtightening the connecting rod or main bearing cap bolts, as this can distort the crankshaft and lead to premature failure.

Service Note

Always replace the main and connecting rod bearings when installing a new crankshaft.