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Dorman 603-5203 Engine Coolant Reservoir Compatible with Select Freightliner Models

Free shipping on orders over $29.99

$182.81

$ 72 .99 $72.99

In Stock

About this item

  • Direct replacement - this engine coolant reservoir matches the fit and function of the original part
  • Ideal solution - engineered for a seamless installation
  • Durable construction - manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design - backed by 100 years of automotive aftermarket experience
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool


This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Freightliner Cascadia: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Freightliner Century Class: 2008, 2009, 2010, 2011] - [Freightliner Columbia: 2010, 2011, 2012, 2013, 2014, 2015] - [Freightliner Coronado: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Freightliner FLD120SD: 2011] - [Freightliner M2 106: 2014, 2016] - [Freightliner M2 112: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Freightliner M2: 2015]


Juan O.
Reviewed in the United States on April 6, 2025
The media could not be loaded.
El destructor
Reviewed in the United States on July 27, 2024
I buy this item 11 month ago for my 2013 freightliner cascadiaAnd now it crack on several places and the level sensor fail I hope I get a replacement if this have a warranty I believe dorman has a warranty let see what happens when I contact dorman
Customer
Reviewed in the United States on July 11, 2023
This reservoir brand last long same as oem, other brands are not water tide on cap and leak water.
Burhan
Reviewed in the United States on August 5, 2022
Got this for my 17 cascadia and didn't even last a year; got a Crack on top and it turned all brown inside because it can't withstand the heat and I notice it started boiling after a few months. Cheap quality. Stick with oem.
Jackie Phan
Reviewed in the United States on May 21, 2022
So far now is good
Trucker Mike
Reviewed in the United States on June 17, 2021
Arrived in 3 days and arrived in good condition and very well packaged. All bolt holes lined up perfectly and install took about 30 minutes. Would buy this again.
Customer
Reviewed in the United States on August 10, 2020
Very good product, it fits perfectly Cascadia 2016.
Henry Lee Williams Jr.
Reviewed in the United States on January 13, 2020
Works great. Installed it on a 2014 freightliner cascadia and hadn’t had any leaks since. Probably 3 months now that I’ve had it installed. Direct replacement using original hardware.
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