OEM Freightliner Coolant Reservoir Expansion Tank

Genuine OEM Freightliner coolant reservoir (surge/expansion tank) removed from a heavy-duty truck. This reservoir is designed to maintain proper coolant level and system pressure while allowing coolant expansion during engine operation.

The tank features molded COLD MIN and COLD MAX level indicators and includes the factory coolant level sensor and pressure cap, as shown in the photos.

OEM Part Number A0525263005 is commonly used on Freightliner Cascadia and other heavy-duty Freightliner models. It has also been superseded by later revisions including A0525263006 and A0525263007.

Please verify the OEM part number, mounting points, hose connections, and sensor style before purchasing.

OEM Part Information

• Brand: Freightliner

• OEM Part Number: A0525263005

• Type: Coolant Reservoir / Expansion Tank / Surge Tank

• Material: Heavy-Duty Plastic

• Color: Translucent

Compatible With

May fit:

• Freightliner Cascadia

• Freightliner Cascadia Evolution

• Freightliner Columbia

• Freightliner Century Class

• Freightliner Coronado

• Freightliner M2-112

• Freightliner 122SD

Commonly used on 2008–2017 Freightliner trucks equipped with the same cooling system configuration. Always verify the OEM part number before purchasing.

Features

• Genuine OEM Freightliner part

• Coolant expansion / surge tank

• Factory coolant level sensor included

• Pressure cap included

• Molded COLD MIN and COLD MAX level indicators

• OEM hose connections

• Direct OEM replacement

Condition

• Genuine OEM used part.

• Normal cosmetic wear from previous use.

• Coolant level sensor is installed.

• Pressure cap is included.

• Hose fittings appear intact.

• Reservoir shows normal discoloration from coolant use.

• No obvious cracks or broken mounting points are visible in the provided photos.

• Untested.

• Sold exactly as shown in the photos.

Package Includes

• (1) OEM Freightliner Coolant Reservoir Expansion Tank

• Coolant level sensor

• Pressure cap

Item Specifics

• Brand: Freightliner

• Type: Coolant Reservoir / Expansion Tank

• Manufacturer Part Number: A0525263005

• OE/OEM Part: Yes

• Material: Plastic

• Color: Natural / Translucent

• Features: Coolant Level Sensor, Pressure Cap Included

• Condition: Used