Main Bearing 4025120 for 6B5.9 M11 ISM QSM11 Engine

Keywords: 4025120 main bearing, 6B5.9 M11 ISM QSM11 crankshaft main bearing set, excavator engine main bearing, construction machinery spare parts

Product Overview

Main Bearing Part No.4025120 is high quality crankshaft main bearing set compatible with 6B5.9, M11, ISM, QSM11 diesel engines. It supports crankshaft rotation, reduces friction, bears heavy radial load and protects crankshaft against abrasion. Widely used on excavators and heavy-duty construction machinery. It is ideal replacement for worn main bearing during engine overhaul and maintenance.

Detailed Specifications

Key Features & Advantages

• ✅ High-performance alloy material, outstanding wear resistance and heavy load capacity.
• ✅ Precision machining, accurate fit clearance to minimize friction loss.
• ✅ Excellent anti-fatigue performance, stable under continuous heavy working load.
• ✅ Good oil storage property to avoid dry friction damage.
• ✅ Original standard dimension for direct installation.
• ✅ Strict quality inspection for every set before delivery.

Application Scope

Fit Equipment: Excavators and heavy‑duty construction machinery equipped with 6B5.9, M11, ISM, QSM11 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.