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Thermostat Switch Sensor 3408643 3915945 for Engine 4B3.9 6B5.9 B4.5 B6.7S 4.5
$61.69
Sale price
$61.69
Regular price
Available to Order
This Thermostat Switch Sensor is a temperature control sensor compatible with Cummins 4B3.9, 6B5.9, B4.5, B6.7S engines and matches OEM Part# 3408643 and 3915945.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
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Product Overview
The Thermostat Switch Sensor 3408643 3915945 is a critical component for engine temperature monitoring in Cummins diesel engines. It ensures precise temperature control for optimal engine performance and efficiency. This sensor is designed for use in heavy-duty applications requiring reliable coolant temperature sensing.
Key Features & Performance
- Direct replacement for OEM part numbers 3408643 and 3915945
- Compatible with Cummins 4B3.9, 6B5.9, B4.5, B6.7S and 4.5 engine models
- High-quality construction for accurate temperature sensing and durability
- Easy plug-and-play installation with factory connectors
- Rigorous testing ensures reliable performance under extreme conditions
Fitment & Compatibility
- Cummins 4B3.9 engine
- Cummins 6B5.9 engine
- Cummins B4.5 engine
- Cummins B6.7S engine
- Cummins 4.5 engine
Technical Specifications
- Part Number(s): 3408643, 3915945
Frequently Asked Questions
Q: What is the function of this thermostat switch sensor? A: It monitors engine coolant temperature and sends a signal to the engine control unit to regulate cooling fan operation and maintain optimal operating temperature.
Q: Is this sensor compatible with all Cummins engines? A: It is specifically designed for Cummins 4B3.9, 6B5.9, B4.5, B6.7S and 4.5 models; verify your engine model before purchase.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.