CATUndercarriage

4N4534 Pulley-Crankshaft — Cat 245 375

This crankshaft pulley is a critical component of the engine's accessory drive system, responsible for transferring rotational force from the crankshaft to other components like the alternator and water pump. Manufactured to meet stringent OEM material and dimensional standards, it ensures smooth operation and prevents vibration issues common with worn or damaged pulleys. Operators may notice increased noise from the engine bay, belt slippage, or erratic operation of accessories driven by the belt when this part begins to fail.

Pulley-Crankshaft – Part No 4N4534 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

IST.', };

Related CAT Parts

From the same category — may also be needed

124-7280
Track Roller
2W4087
Gear As- Idler
1s4701
Pulley
3258625
Excavators & Construction Equipment
396-6895
Air Conditioner Controller Panel
1764891
Piston As

Browse all CAT Undercarriage →

Installation & Application Notes

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeCrankshaft Pulley
MaterialCast iron or steel
ApplicationEngine accessory drive system
Service LifeReplace every 4,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A worn crankshaft pulley may initially present as a chirping or squealing noise from the engine bay, especially under load. If left unaddressed, the pulley can develop excessive wobble, leading to premature belt wear and potential slippage, compromising the function of critical engine accessories. Continued operation with a failing pulley risks damage to the crankshaft snout or accessory components.

Installation Tip

Ensure the crankshaft is clean and free of debris before installing the new pulley to guarantee a flush fit. Avoid using excessive force or improper tools when seating the pulley, as this can damage the crankshaft or the pulley itself.

Service Note

Inspect the drive belts and tensioner assembly for wear and proper function when replacing the crankshaft pulley.