Thermostat 65.06402‑5015 For Doosan Daewoo DB58 Diesel Engine

Keywords: 65.06402‑5015 engine thermostat, Doosan DB58 thermostat, DB58 cooling system thermostat, Daewoo excavator thermostat, construction machinery engine cooling spare parts, aftermarket thermostat with sealing o‑ring

Product Overview

Thermostat Part No.65.06402‑5015 is complete engine cooling thermostat assembly equipped with sealing o‑ring, specially compatible with Doosan Daewoo DB58 diesel engine for excavators and heavy‑duty construction machinery. It controls coolant circulation loop, regulates engine working temperature, helps engine reach optimal operating temperature rapidly during cold start and prevents engine over‑heating under heavy‑load condition. This replacement thermostat solves common issues such as slow warm‑up, continuous high water temperature, thermostat stuck open / stuck closed and coolant leakage caused by aging wax element and seal ring failure. Manufactured with OEM opening temperature standard for direct plug‑in replacement.

Detailed Specifications

Key Features & Advantages

• Strict OEM opening temperature, outer dimension and installation size, direct fit for DB58 engine housing.
• High‑precision wax thermal‑sensitive element, fast and stable opening‑closing response.
• Supplied together with matched O‑ring gasket, effectively avoid coolant leakage after installation.
• Stable performance under long‑term high‑temperature heavy‑load working environment.
• Every thermostat passes opening‑temperature and sealing performance test before delivery.
• Critical maintenance spare part for excavator workshop repair and field emergency overhaul.

Application Scope

Fit Equipment: Doosan Daewoo excavators and heavy‑duty machinery powered by DB58 diesel engine ‑ Widely used for machinery repair workshops, equipment fleet maintenance and engine overhaul projects.

Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying hydraulic parts, engine 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

Independent plastic bag packaging, protect thermostat and rubber o‑ring from scratch and deformation ‑ Export‑grade outer carton for safe sea and land 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.