Oil Pump 3971544 for Engine ISB 6B 6BT IS6D QSB6.7 QSL9

Keywords: 3971544 engine oil pump, ISB 6B 6BT oil pump, QSB6.7 QSL9 lubrication oil pump, cumm-ins engine oil pump assembly, excavator engine spare parts, aftermarket replacement oil pump

Product Overview

Engine Oil Pump Part No.3971544 is the core lubrication system component, compatible with cumm-ins ISB, 6B, 6BT, IS6D, QSB6.7, QSL9 diesel engines widely fitted on excavators and heavy‑duty machinery. Driven by engine gear train, this oil pump pressurizes engine lubrication oil and delivers oil to crankshaft, connecting rod, camshaft and other friction components, forming effective oil film for lubrication, cooling and wear reduction. It resolves serious engine risks including low oil pressure alarm, insufficient lubrication, abnormal mechanical noise and early‑stage component wear caused by original pump gear abrasion, internal leakage and pressure loss. Every oil pump will pass oil pressure and flow performance test before leaving warehouse.

Detailed Specifications

Key Features & Advantages

• High‑precision gear processing, stable oil output pressure and flow rate, perfectly match cumm-ins multi‑model engines.
• High‑strength cast housing and alloy gear, excellent wear‑resistance, adapt long‑time heavy‑load working condition.
• Low internal leakage, keep stable lubricating oil pressure, avoid low‑oil‑pressure warning failure.
• Effectively supply lubrication oil for each moving part, reduce metal friction noise, extend engine service life.
• Direct replacement part for engine overhaul and lubrication system repair.

Application Scope

Fit Equipment: Excavators and heavy‑duty construction machinery powered by cumm-ins ISB, 6B, 6BT, IS6D, QSB6.7, QSL9 engine. ‑ Widely used for machinery repair workshops, equipment refurbishment and full engine overhaul 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 with shock‑proof inner packing, 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.