Dorman 603-5602 | Front Washer Fluid Reservoir

Part Number
Heavy Duty Windshield Washer Fluid Reservoir

Fits: 95-07 Chevrolet W3500 Tiltmaster, 95-07 Chevrolet W4500 Tiltmaster, 95-07 GMC W3500 Forward, 95-07 GMC W4500 Forward, 95-07 Isuzu NPR, 99-07 Chevrolet W5500 Tiltmaster, 99-07 GMC W5500 Forward, 99-07 Isuzu NPR-HD, 99-07 Isuzu NQR, 05-07 Chevrolet W5500HD Tiltmaster, 05-07 GMC W5500HD Forward, 05-07 Isuzu NRR

Special Price $95.39 Regular Price $105.99
Out of stock
Free Shipping

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


  • Chevrolet 2007-95, GMC 2007-95, Isuzu 2007-95
  • Heavy Duty Windshield Washer Fluid Reservoir
  • 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
  • Exact fit - each reservoir is carefully scanned to provide a precise match to the OEM shape and dimensions for a clean installation
  • Direct replacement - this washer fluid reservoir fits and functions like original equipment on specific vehicle applications
  • Windshield, Washer, Fluid, Reservoir, Fluids, Reservoirs


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

From 9/01/94



  • Isuzu: 897855656
  • Automann: 575.1062


  • 1999-2007 GMC W5500 Forward - Position: Front
  • 1995-2007 GMC W4500 Forward - Position: Front
  • 2005-2007 Chevrolet W5500HD Tiltmaster - Position: Front
  • 1995-2007 GMC W3500 Forward - Position: Front
  • 1995-2007 Isuzu NPR - Position: Front
  • 1999-2007 Isuzu NQR - Position: Front
  • 2005-2007 GMC W5500HD Forward - Position: Front
  • 1999-2007 Isuzu NPR-HD - Position: Front
  • 1995-2007 Chevrolet W4500 Tiltmaster - Position: Front
  • 1999-2007 Chevrolet W5500 Tiltmaster - Position: Front
  • 1995-2007 Chevrolet W3500 Tiltmaster - Position: Front
  • 2005-2007 Isuzu NRR - Position: Front
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.
Please, mind that only logged in users can submit questions

Compatible Vehicles

Copyright © 2013-present PartsHawk, LLC. All rights reserved.