CATUndercarriage

3s7517 Pulley — Cat D8H

This is a CAT Pulley, an essential component within the engine's accessory drive system responsible for transferring rotational power via a belt. Manufactured to meet rigorous quality specifications, it ensures smooth operation and longevity, unlike worn pulleys with grooved or damaged surfaces. Operators may notice increased noise from the engine bay, belt slippage, or malfunctioning engine accessories when this pulley is compromised.

Pulley – Part No 3s7517 – 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

3 PM IST.', };

Related CAT Parts

From the same category — may also be needed

0990219
Undercarriage Component
203-7343
Bucket Linkage Bushing
7V9223
Undercarriage Component
2P9448
Undercarriage Component
7T5351
Piston
3054908
Pulley Gp-Idler

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 TypePulley
MaterialCast Iron
ApplicationEngine Accessory Drive
Service LifeReplace as needed based on wear inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A failing pulley often manifests as a high-pitched squeal or a rhythmic knocking sound originating from the engine compartment. If the pulley bearing seizes, it can cause the drive belt to break, leading to the loss of function for critical engine systems like cooling or charging. This can result in engine overheating or a dead battery.

Installation Tip

Before installing, ensure the pulley bore is clean and free of any burrs or debris that could affect seating. Never use excessive force to press the pulley onto the shaft; it should slide on smoothly if aligned correctly.

Service Note

When replacing this pulley, it is essential to inspect the drive belt for wear and proper tension, and to check the bearings of the driven accessory.