Oil Pump 4941148 for Engine QSB3.3 ISB 4BT

Keywords: 4941148 engine oil pump, QSB3.3 ISB 4BT oil pump, excavator diesel engine oil pump, construction machinery lubrication system spare parts, heavy‑duty engine lubrication replacement parts

Product Overview

Oil Pump Part No.4941148 is a vital lubrication component for QSB3.3, ISB, 4BT diesel engines, widely used for excavators, light trucks, generator sets and various heavy‑duty construction machinery. It delivers pressurized engine oil to each friction pair to realize lubrication, cooling and wear‑reduction for moving parts. This oil pump effectively avoids problems such as low oil pressure, insufficient lubrication, abnormal engine noise and component wear caused by original oil pump aging or internal gear wear. Every oil pump passes strict oil‑pressure performance testing before carton packaging and shipment.

Detailed Specifications

Key Features & Advantages

• High‑quality cast housing and precision gear material, stable oil‑supply performance, excellent wear‑resistance under long‑time heavy‑duty working conditions.
• Accurate gear machining, maintain stable oil output pressure, guarantee sufficient lubricating oil supply for crankshaft, connecting rod, camshaft and other moving components.
• Effectively eliminate low oil pressure, engine metallic knocking noise and accelerated parts wear caused by damaged original oil pump.
• Fine assembly process, reduce internal leakage, keep stable lubrication circulation and extend whole‑engine service life.
• Perfect fit for QSB3.3 / ISB / 4BT engine lubrication system overhaul and maintenance projects.
• High interchangeability, direct replacement installation.

Application Scope

Fit Equipment: Excavators, trucks, generator sets and heavy‑duty machinery equipped with QSB3.3, ISB, 4BT 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

Export carton with shock‑proof protective packaging, prevent gear deformation and surface 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.