6C 8.3L 4B 3.9L 6B 5.9L Fan Drive Bearing New 3910739 New OEM Ball Bearings for

Keywords: 3910739 fan drive bearing, 6C 8.3L 4B3.9L 6B5.9L ball bearing, diesel engine fan bearing, excavator engine spare parts, construction machinery fan drive ball bearing, aftermarket replacement bearing

🔹Product Overview

Fan Drive Bearing Part No.3910739 is an important rotating support component for 6C 8.3L,4B 3.9L,6B 5.9L diesel engine cooling fan assembly, widely fitted on excavators and heavy‑duty construction machinery. It supports high‑speed rotation of engine cooling fan, reduces friction resistance during fan operation, and ensures stable running of cooling system. This replacement ball bearing resolves typical failures including fan abnormal noise, shaking, jamming and rotation difficulty caused by original bearing wear, ball damage and grease failure. Each fan drive bearing undergoes strict clearance inspection and rotation test before shipment.

🔹Detailed Specifications

🔹Key Features & Advantages

• High‑grade bearing steel material, excellent wear‑resistance and impact‑resistant performance under high‑speed working conditions.
• Precise internal clearance, smooth rotation, low friction, effectively reduce fan running noise.
• Good sealing performance, prevent dust and moisture intrusion, extend service life of internal grease.
• Effectively eliminate fan shaking, abnormal noise and stuck faults resulted from damaged original fan drive bearing.
• Perfect match for engine fan drive system repair and maintenance projects.

🔹Application Scope

Fit Equipment: Excavators and heavy‑duty machinery equipped with 6C 8.3L,4B 3.9L,6B 5.9L diesel engine ‑ Widely applied for engine repair workshops and routine equipment maintenance projects.

🔹Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits. ‑ Large ready stock for various machinery spare parts ‑ Factory‑direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

🔹Packaging & Shipping

Neutral export carton box with shock‑proof inner packing, avoid scratch and collision during long‑distance transportation ‑ Multiple shipping options: sea freight, air freight, international express for small trial orders ‑ Export documents such as Commercial Invoice, Packing List can be provided.

🔹Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.