Main Bearing 3901431 for 6CT 6BT 6BT5.9 Engine

Keywords: 3901431 main bearing, 6CT 6BT 6BT5.9 crankshaft main bearing, diesel engine spare parts, heavy truck & excavator engine bearing, engine overhaul kit

Product Overview

Main Bearing Part No.3901431 is crankshaft main bearing compatible with 6CT, 6BT and 6BT5.9 diesel engines. It is fitted between crankshaft and engine block, supporting crankshaft rotation and bearing radial load. It is a critical wear component for heavy truck and excavator engine overhaul and maintenance.

Detailed Specifications

Key Features & Advantages

• Bimetallic alloy material, superior wear resistance and load-bearing capacity.
• Precision machined dimension, guarantee proper clearance and stable lubrication.
• Excellent fatigue resistance, reliable performance under continuous heavy-duty operation.
• Low friction design, effectively protect crankshaft main journal from abrasion.
• Strict quality inspection before delivery.

Application Scope

Fit Equipment: Heavy trucks, excavators and construction machinery equipped with 6CT,6BT,6BT5.9 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.