Replacement Coolant Overflow Reservoir Bottle Tank - Compatible with Kenworth and Peterbilt Trucks - W900, T800, T660, T600, 389, 388, 384, 382, 377, 365, 348 - Replaces 603-5403, N5346001, T1673008

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$129.99
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Management number 212723428 Release Date 2026/04/06 List Price $52.00 Model Number 212723428
Category
  • REPLACEMENT COOLANT RESERVOIR TANK - The overflow coolant tank contains coolant fluid that is discharged from the cooling system attached to the engine. Pressure builds up and is released when the coolant is hot and expanding through the radiator. When the engine cools down, the excess fluid flows back into the radiator from the coolant tank of your vehicle.
  • COMPATIBLE FOR KENWORTH & PETERBILT TRUCKS - 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 W900 & T800 | 08, 09, 10, 11, 12, 13, 14, 15, 16, 17 T660 | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 389 | 08, 09, 10, 11, 12, 13, 14, 15 388 | 2008-2016 386 | 2008-2014 385 | 2008-2016 384 | 2008-2017 382 | 2008-2014 377 | 2008-2018 367 | 2008-2018 365 | 2010-2016 348 |.
  • REPLACES PART# 603-5403, N5346001, T1673008 commonly found on popular W900, T800, T660, T600, 389, 388, 386, 385, 384, 382, 377, 367, 365, 348 vehicles including models 08, 09, 10, 11, 12, 13, 14, 15, 16 17, 18, 19. The coolant reservoir tank can easily be located on the engine bay mounted on the engine near and connected to the radiator. If you are experiencing leaks, a low level of coolant, or an overheating engine, then you may have a problem with your coolant reservoir tank.
  • OEM FIT, QUALITY & FINISH - While this is NOT a genuine OEM part, it is a direct replacement and will look, fit and work exactly like the factory part. The coolant radiator overflow tank's common issue is leakage that can lead to an overheated engine. Safely turn off the engine and let the temperature drop before opening the radiator's cap or the coolant tank to reduce and release the pressure safely.
  • LIFETIME WARRANTY - This Cascadia coolant reservoir tank comes complete with a lifetime warranty. If the part ever fails on your Peterbilt 389 coolant reservoir tank, simply contact us for a replacement. Save time and money off of dealer prices by purchasing this part and replacing it yourself. See our website for full details.

UPC 810072261403
Fit Type Vehicle Specific
Fuel Type Diesel
Brand Name AA Ignition
Manufacturer AA Ignition
Model Number GWA600
Material Type Plastic
Product Grade Replacement Part
Item Type Name Overflow Reservoir
Exterior Finish Smooth
Included Components Coolant Overflow Tank, Reservoir cap, coolant level sensor
Part Interchange Info 603-5403, N5346001, T1673008
Manufacturer Part Number 603-5403AA
OEM Equivalent Part Number 603-5403, N5346001, T1673008
Compatible with Vehicle Type Truck
Manufacturer Warranty Description Lifetime Warranty

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