Main Bearing 3944158 3944153 3944163 for 6CT Diesel Engine

Keywords: 3944158, 3944153, 3944163, 6CT engine main bearing, 6CT crankshaft bearing set, excavator engine spare parts, construction machinery parts

Product Overview

Main Bearing with part numbers 3944158, 3944153, 3944163 is the crankshaft main bearing designed for 6CT diesel engine. It supports crankshaft rotation, reduces friction and bears heavy radial loads during engine operation, effectively protecting crankshaft from wear and scratch. Widely applied on excavators and various heavy-duty construction machinery. It is perfect replacement parts for engine overhaul and maintenance.

Detailed Specifications

Key Features & Advantages

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

Application Scope

Fit Equipment: Excavators and heavy‑duty construction machinery equipped with 6CT 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.