Thermostat with Gasket Bushing 3917324 for Engine 4B3.9 4BT3.9 4BTA3.9 6B5.9 6BT5.9 6BTA5.9

Keywords: 3917324 engine thermostat, 4B3.9 6BT5.9 thermostat with gasket, cumm-ins 4B 6B cooling system thermostat, excavator diesel engine thermostat, construction machinery cooling spare parts, aftermarket replacement thermostat assembly

Product Overview

Thermostat with Gasket Bushing Part No.3917324 is core temperature‑control component for engine cooling system, compatible with cumm-ins 4B3.9, 4BT3.9, 4BTA3.9, 6B5.9, 6BT5.9, 6BTA5.9 diesel engines widely applied on excavators and heavy‑duty equipment. It controls coolant circulation loop, keeps engine operating at optimal working temperature, accelerates cold‑start warm‑up process and prevents engine overheating. Matching gasket and bushing are included for direct installation. This replacement part resolves common cooling‑system failures such as slow warm‑up, continuous overheating, high water temperature alarm caused by original thermostat sticking open or closed, spring failure and sealing leakage. Each thermostat undergoes strict opening‑temperature test and sealing inspection before shipment.

Detailed Specifications

Key Features & Advantages

• Standard opening temperature, precise thermal‑sensitive response, perfectly matches cumm-ins 4B 6B series engines.
• Complete set with matching gasket and bushing, ready‑to‑install, no extra accessory purchase required.
• Stable thermal‑sensitive element, anti‑aging performance, avoids thermostat stuck open / stuck closed fault.
• Effectively maintain normal engine operating temperature, solve high water‑temperature and overheating issues, protect engine from thermal damage.
• Excellent direct‑fit replacement for repair, maintenance and engine overhaul projects.

Application Scope

• Fit Equipment: Excavators and heavy‑duty construction machinery powered by cumm-ins 4B3.9,4BT3.9,4BTA3.9,6B5.9,6BT5.9,6BTA5.9 diesel engine.
• Widely used for machinery repair workshops, equipment refurbishment and cooling‑system 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.