Main Bearing Set 3945919 for 6B5.9 6C8.3 ISC ISC8.3 ISL8.9 QSC8.3 QSL9 Engine

Keywords: 3945919 main bearing set, 6B5.9 6C8.3 ISC ISL8.9 crankshaft main bearing, excavator engine main bearing kit, construction machinery spare parts

🔹Product Overview

Main Bearing Set Part No.3945919 is a full set of crankshaft main bearings compatible with 6B5.9, 6C8.3, ISC, ISC8.3, ISL8.9, QSC8.3, QSL9 diesel engines. It supports the crankshaft during operation, reduces rotational friction, withstands heavy radial loads and protects crankshaft from wear and damage. Widely used for excavators and heavy-duty construction machinery. It is the ideal replacement kit for worn main bearings during engine overhaul and repair.

🔹Detailed Specifications

🔹Key Features & Advantages

• High-performance alloy material, excellent wear resistance and heavy load bearing capacity.
• Precision machining with tight tolerance, proper fit clearance to lower friction loss.
• Outstanding anti-fatigue performance, stable performance under continuous heavy-duty working condition.
• Good oil retention surface, effectively prevent dry friction and crankshaft injury.
• Original standard dimension, easy for direct installation.
• Strict quality inspection on each bearing set before shipment.

🔹Application Scope

Fit Equipment: Excavators and heavy‑duty construction machinery equipped with 6B5.9, 6C8.3, ISC, ISC8.3, ISL8.9, QSC8.3, QSL9 diesel engine ‑ Widely used for machinery repair shops, engine rebuilding factories and heavy‑duty equipment overhaul services.

🔹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

• Shock-proof inner packing + export neutral carton, prevent collision damage 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.