Dorman Products 603-5401 Washer Fluid Reservoir

Part Number
Heavy Duty Windshield Washer Fluid ReservoirFits: 95-16 Kenworth C500, 95-99 Kenworth K300, 95-08 Kenworth T300, 95-99 Kenworth T400, 95-97 Kenworth T450, 95-07 Kenworth T600A, 95-19 Kenworth T800, 95-19 Kenworth W900, 10-19 Kenworth T400, 07-18 Kenworth T660, 08-19 Kenworth T170, 08-19 Kenworth T270, 08-19 Kenworth T370
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This replacement washer fluid reservoir is manufactured to withstand the stresses of underhood heat and engine vibration. It is thoroughly tested to ensure optimum fit and performance on specific vehicle applications.

BRAND: Dorman - HD Solutions


  • Direct replacement - this washer fluid reservoir fits and functions like original equipment on specific vehicle applications
  • Heavy Duty Windshield Washer Fluid Reservoir
  • Windshield, Washer, Fluid, Reservoir, Fluids, Reservoirs
  • Restores performance - everything you need to fix a leaking factory fluid reservoir
  • Thoroughly tested - design has undergone heat age testing and burst testing to help ensure reliability in the toughest conditions
  • Kenworth 2019-95
  • Exact fit - each reservoir is carefully scanned to provide a precise match to the OEM shape and dimensions for a clean installation


Mounting Bracket IncludedNo
Mounting Hardware IncludedNo
Package Contents1 Coolant Reservoir
Reservoir Cap IncludedYes

ID No. K114-20



  • Automann: 575.1041
  • Paccar Parts: R861011


  • 2008-2019 Kenworth T370 - Position: N/A
  • 1995-2008 Kenworth T300 - Position: N/A
  • 1995-2019 Kenworth W900 - Position: N/A
  • 2008-2019 Kenworth T270 - Position: N/A
  • 1995-1999 Kenworth K300 - Position: N/A
  • 1995-2007 Kenworth T600A - Position: N/A
  • 2007-2018 Kenworth T660 - Position: N/A
  • 1995-1997 Kenworth T450 - Position: N/A
  • 2010-2019 Kenworth T400 - Position: N/A
  • 1995-2019 Kenworth T800 - Position: N/A
  • 1995-1999 Kenworth T400 - Position: N/A
  • 1995-2016 Kenworth C500 - Position: N/A
  • 2008-2019 Kenworth T170 - Position: N/A
Customer Questions
Can I use Dorman parts to replace OEM parts?
Yes, Dorman parts can often be used as replacements for OEM parts, but it is important to carefully compare specifications and ensure compatibility.
How do I install Dorman shift linkage bushing?
To install a Dorman shift linkage bushing, first locate the old bushing and remove it if necessary. Apply lubricant to the Dorman bushing and slide it onto the shift linkage, tapping it into place with a soft tool until fully seated. Check the alignment and function of the shift linkage after installation.
Where is Dorman manufactured?
Dorman is a global automotive parts supplier with manufacturing facilities in the United States, Mexico, Canada, China, and India. Its headquarters and largest manufacturing facility are located in Colmar, Pennsylvania, USA.
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