Cylinder Liner Sleeve 3904166 for Engine 4B3.9 6B5.9 B3.3 B5.9 G5.9 ISB ISB6.7 ISBE ISBE4 QSB3.9 QSB4.5 QSB5.9 QSB6.7

Keywords: 3904166 cylinder liner sleeve, 4B3.9 6B5.9 engine cylinder liner, ISB ISB6.7 cylinder sleeve, QSB3.9 QSB6.9 diesel cylinder liner, excavator engine spare parts, aftermarket replacement cylinder liner

Product Overview

Cylinder Liner Sleeve Part No.3904166 is core wear‑resistant component for 4B3.9 6B5.9 B3.3 B5.9 G5.9 ISB ISB6.7 ISBE ISBE4 QSB3.9 QSB4.5 QSB5.9 QSB6.7 diesel engines widely used on excavators and heavy‑duty construction machinery. It forms combustion chamber space together with piston, piston rings and cylinder head, bears high‑temperature combustion, piston reciprocating friction and internal pressure. This replacement cylinder liner resolves typical failures including inner‑wall scratch, excessive wear, cylinder pulling and water channel corrosion caused by long‑time heavy‑load operation. Each cylinder liner undergoes strict dimension measurement, inner‑wall roughness inspection and pressure‑resistance test before shipment.

Detailed Specifications

Key Features & Advantages

• High‑grade alloy cast iron material, excellent high‑temperature resistance, wear‑resistance and anti‑corrosion performance for severe working conditions.
• Precision honing inner‑wall process, guarantee good oil‑storage property, reduce friction loss of piston ring and piston assembly.
• Strict outer‑diameter and length tolerance, perfect fit for engine cylinder block installation position.
• Effectively solve cylinder bore wear, piston scuffing, engine oil burning and power dropping problems for overhaul projects.
• Stable structural performance, long service life, direct fit for multi‑model engine repair and rebuilding.

Application Scope

Fit Equipment: Excavators and heavy‑duty machinery equipped with 4B3.9 6B5.9 B3.3 B5.9 G5.9 ISB ISB6.7 ISBE ISBE4 QSB3.9 QSB4.5 QSB5.9 QSB6.7 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 collision and scratch 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.