3940632 Thermostat for Cummins 6D114 6CT 6CT8.3 Excavator Engine Parts

Product Details

Product Overview

This is a high-quality replacement thermostat, part number 3940632, specifically designed for use with Cummins diesel engine models 6D114, 6CT, and 6CT8.3. As a critical component of the engine’s cooling system, this thermostat regulates coolant flow to maintain optimal operating temperature, ensuring efficient combustion and reducing engine wear.

Commonly used in heavy-duty applications such as excavators, loaders, bulldozers, forklifts, trucks, and buses, this part is an essential item for fleet maintenance and engine overhaul. Manufactured to OEM size and specifications, it provides a reliable fit and performance for a wide range of industrial and construction machinery.

Key Features & Benefits

• Precise Temperature Control: Ensures the engine reaches and maintains its ideal operating temperature quickly, improving fuel efficiency and reducing emissions.
• OEM Specification Fitment: Manufactured to standard OEM dimensions for a direct, hassle-free replacement without modifications.
• Durable Construction: Built with robust materials to withstand the high heat and pressure cycles found in heavy-duty diesel engines.
• Enhanced Engine Protection: Prevents overheating and overcooling, reducing thermal stress on cylinder heads, liners, and gaskets.
• Improved Performance: Contributes to consistent power output and smoother operation across various load conditions.
• Easy Identification: Clear part number 3940632 stamped for quick verification against your existing stock or service manual.

Technical Specifications

OEM Cross-Reference

This thermostat 3940632 is a direct replacement for the following OEM part numbers:

• Cummins: 3940632

Note: Always verify your original part number and housing configuration before ordering to ensure compatibility.

Compatibility

This thermostat is commonly used for the following engine models and applications:

• Engine Models: Cummins 6D114, 6CT, 6CT8.3
• Vehicle/Equipment Applications: Excavator, Loader, Bulldozer, Forklift, Truck, Bus

Please confirm the specific engine model and housing type in your equipment prior to purchase.

Global Supply & Distribution

We offer worldwide shipping and supply capabilities to meet the demands of international B2B buyers. Our products are exported to major markets including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.

We provide fast delivery to major ports and industrial hubs, ensuring minimal downtime for your operations. With extensive experience in international trade and logistics, we ensure secure packaging and compliance with export documentation requirements.

Quality Assurance

• Manufacturing Standards: Produced in a certified facility focusing on precision engineering.
• Testing: Each unit undergoes outgoing inspection; machinery test reports and video inspections are available upon request.
• Warranty: Backed by a 6-month warranty against manufacturing defects for peace of mind.

FAQ

Q1: How do I know if this thermostat 3940632 fits my Cummins 6CT engine?
A: This thermostat is designed for the 6CT, 6CT8.3, and 6D114 series. However, different applications (excavator vs. truck) may use different housing configurations. We recommend comparing the diameter and flange design of your old thermostat with the images provided. If unsure, contact our support with your engine serial number.

Q2: What is the opening temperature of this thermostat?
A: While the specific temperature rating is not listed in the standard specs, this part is built to OEM specifications for the 6CT/6D114 series. Typically, Cummins heavy-duty thermostats open around 82°C (180°F) to 91°C (195°F). Please consult your engine service manual for the exact specification.

Q3: Can I install this thermostat myself, and what should I check during installation?
A: Yes, it is a standard replacement part. During installation, ensure the thermostat is seated correctly in the housing and that the gasket or O-ring seal is in good condition. Always bleed the cooling system after installation to prevent air pockets, which can cause overheating.