Product Overview
This replacement coolant level sensor is designed for compatible 2008–2020 Freightliner Cascadia trucks. Installed in the coolant reservoir, the sensor monitors the coolant level so the vehicle can provide a low-coolant warning when the system detects an insufficient fluid level.
It is a practical replacement when the existing sensor is damaged, leaking or causing an inaccurate low-coolant warning. Fitment is specified for United Pacific coolant reservoir #26002 and applications using OEM sensor number 06-62384-002.
Key Features & Benefits
Restores Coolant-Level Monitoring
The sensor restores the coolant reservoir’s level-monitoring function when replacing a compatible failed or damaged sensor.
Designed for Freightliner Cascadia
This replacement sensor is intended for compatible 2008–2020 Freightliner Cascadia applications.
Compatible With UP Reservoir #26002
The sensor is designed as a replacement component for United Pacific coolant reservoir #26002.
Direct OEM Replacement
This sensor directly replaces Freightliner OEM part number 06-62384-002 on compatible applications.
Sensor-Only Replacement
Replace the coolant level sensor without purchasing an entire reservoir when the existing compatible coolant tank remains serviceable.
Performance / Compatibility / Use-Case
Verified applications and references:
- Vehicle: Freightliner Cascadia
- Model years: 2008–2020
- Product type: Coolant level sensor
- Reservoir compatibility: United Pacific #26002
- Replacement OEM number: 06-62384-002
- Alternate unformatted OEM number: 0662384002
- Warranty: 6 months
Use this sensor when diagnosing a compatible Cascadia with:
- A damaged coolant level sensor
- An inaccurate low-coolant warning
- A leaking sensor or sensor mounting area
- A missing sensor in a replacement UP #26002 reservoir
A low-coolant warning can also be caused by an actually low coolant level, damaged wiring, a poor electrical connection or another cooling-system problem. Diagnose the warning before replacing parts.
Installation / Fitment / Technical Details
Installation requires removing the existing sensor from the compatible coolant reservoir and connecting the replacement to the vehicle’s corresponding electrical connection.
Before ordering or installation:
- Confirm the truck is a 2008–2020 Freightliner Cascadia
- Verify OEM sensor number 06-62384-002
- Confirm compatibility with UP reservoir #26002, where applicable
- Compare the replacement sensor with the original
- Inspect the connector and wiring for corrosion or damage
- Allow the cooling system to cool completely before servicing
- Confirm whether the existing seal or retaining components can be reused
Coolant systems can remain hot and pressurized after engine operation. Never open or service the reservoir while the system is hot. After installation, restore the coolant to the correct level, inspect the sensor area for leaks and confirm that the warning system operates correctly.
Build Quality / Warranty
This component is supplied as a replacement coolant level sensor for compatible Freightliner Cascadia cooling systems and UP reservoir #26002.
Warranty: 6-month manufacturer warranty.
What’s Included
- 1 × Coolant Level Sensor
A coolant reservoir, seal, retaining clip, coolant and installation hardware are not listed as included.
Frequently Asked Questions About the Freightliner Cascadia Coolant Level Sensor
Which trucks does this coolant level sensor fit?
This sensor is designed for compatible 2008–2020 Freightliner Cascadia trucks. Confirm the original sensor and OEM part number before ordering.
Which OEM part number does this sensor replace?
This sensor directly replaces OEM part number 06-62384-002, which may also be written without hyphens as 0662384002.
Does this sensor fit United Pacific reservoir #26002?
Yes. This coolant level sensor is specified as a replacement sensor for UP coolant reservoir #26002.
Is the coolant reservoir included?
No. This product includes the replacement coolant level sensor only. The reservoir is sold separately.
Will replacing this sensor clear a low-coolant warning?
It may correct the warning if the original sensor is faulty. Low coolant, damaged wiring, connector corrosion or another cooling-system issue can also trigger a warning and should be inspected.
Can I replace the sensor while the engine is hot?
No. Allow the engine and cooling system to cool completely before opening or servicing the coolant reservoir because hot coolant can remain under pressure and cause serious burns.
Is a replacement seal included?
A seal is not listed as included. Inspect the existing sealing components and obtain the correct replacement separately if required.
Is this sensor compatible with every 2008–2020 Cascadia configuration?
Fitment is listed for 2008–2020 Freightliner Cascadia trucks, but the original sensor and OEM number should still be verified because cooling-system configurations can vary.


















