Freightliner M2 Coolant Reservoir | Z05-30740-001 | FleetRun FR-COOL747


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Part Number

  • FleetRun: FR-COOL747

Cross Reference

  • Freightliner: Z05-30740-001 / Z05-30740-000 / 05-23195-000 / 05-23195-001 / 05-21178-000 /  05-19706-000
  • Automann: 575.1012
  • Dorman: 603-5202


    • Material: High-Durability Temperature Expanding Plastic
    • Color: Clear
    • Mounting Hole Quantity: 2
    • Coolant Level Sensor Connector: 2 Pin Connector
    • 1 Supply Outlet Hose Connection
    • 2 Overflow Hose Connections
    • Pressure Cap Maximum Pressure Capacity: 20 PSI

    Please note: this is an aftermarket part, the use of other manufacturer's names, part numbers or trademarks is for informational purposes only.

    Please verify OEM part numbers before purchasing, FleetRun assumes no liability related to product use and fitment.

    • 1 - Expansion Tank
    • 1 - Filler Cap
    • 1 - Pressure Cap
    • 1 - Coolant Level Sensor

    Introducing the FleetRun FR-COOL747, a top-quality replacement coolant reservoir surge tank for your 2005-2019 Freightliner M2. This direct replacement part is built to exceed OEM standards and is designed to endure the demanding conditions of heavy-duty truck operation. The FleetRun FR-COOL638 is made from high-durability temperature-expanding plastic, making it more resistant to damage and deterioration than other coolant reservoirs on the market.

    This surge tank has a clear color and comes with 2 mounting holes, 1 supply outlet hose connection, and 2 overflow hose connections. It also features a 2-pin connector for the coolant level sensor and a pressure cap with a maximum pressure capacity of 20 PSI. 

    The package includes all the necessary hardware, such as a filler cap, a pressure cap, and a coolant level sensor, to ensure a seamless installation process. With the included coolant level sensor, you can easily monitor the coolant level and maintain optimal engine performance.

    Cross-referenced with various OEM part numbers, the FleetRun FR-COOL747 is an ideal replacement option for your Freightliner M2, matching or exceeding the same standards as the original equipment. Additionally, if you encounter any problems with your coolant reservoir, our Shop Talk page offers troubleshooting tips and tricks from technicians and shops.

    Don't let a faulty coolant reservoir cause costly damage to your engine. Choose the FleetRun FR-COOL747 for a reliable and cost-effective solution that will keep your Freightliner M2 running smoothly and efficiently.

    • For other information such as tips and tricks or troubleshooting from technicians and shops visit our Shop Talk page from our menu
    • 2005-2019 Freightliner M2