Thermostat 1137700691 For EX300‑5 6SD1 Excavator

Keywords: 1137700691 engine thermostat, EX300‑5 excavator thermostat, 6SD1 diesel engine thermostat, excavator cooling system spare parts, aftermarket replacement thermostat

🔹Product Overview

Thermostat Part No.1137700691 is a core temperature‑control component for 6SD1 diesel engine mounted on EX300‑5 excavator. It automatically opens and closes according to coolant temperature, switches engine cooling circuit between small‑cycle and large‑cycle, keeps engine operating within optimal working temperature range. This replacement thermostat solves typical malfunctions including engine overheating, slow warm‑up, low operating temperature and excessive fuel consumption caused by original thermostat jamming, spring fatigue and failure to open‑close normally. Every thermostat is strictly inspected for opening temperature, spring performance and sealing condition before shipment.

🔹Detailed Specifications

🔹Key Features & Advantages

• ✅ High‑precision thermal‑sensing element, sensitive temperature response, accurately control coolant circulation.
• ✅ High‑strength spring structure, stable opening‑closing performance, resist fatigue under long‑time high‑temperature working environment.
• ✅ Equipped with matched sealing gasket, good leak‑proof performance, prevent coolant leakage.
• ✅ Effectively resolve engine overheating, slow temperature rise and abnormal fuel consumption due to failed original thermostat.
• ✅ Direct‑fit replacement, ideal spare part for EX300‑5 excavator cooling system maintenance and overhaul.

🔹Application Scope ‑

Fit Equipment: EX300‑5 excavator equipped with 6SD1 diesel engine ‑ Widely applied for excavator 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 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.