Dorman 603-5602 Washer Fluid Reservoir - Front

Brand Dorman 603-5602
Position Front
Material Plastic
Color Clear
Mounting Hardware Included No
Mounting Bracket Included No
Package Contents 1 coolant reservoir
Reservoir Cap Included Yes
Fits —110 vehicles

Heat-resistant plastic. Built to withstand underhood heat and engine vibration.

Thoroughly tested. Ensures optimum fit and performance.

Reservoir cap included. Ready for a complete replacement setup.

Cross-references 575.1062 and 897855656 for the same application. See all 2.

$146.77Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $146.77
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 603-5602 Washer Fluid Reservoir

Dorman 603-5602 is a replacement washer fluid reservoir built for underhood heat and engine vibration. It is a direct-fit style service part for specific vehicle applications, including select Honda Civic and Toyota Corolla fitments where the original reservoir has cracked, leaked, or no longer holds washer fluid properly.

Key Features

  • Plastic reservoir construction for everyday underhood use
  • Clear color for easier fluid level visibility
  • Reservoir cap included
  • Thoroughly tested for fit and performance on specific applications
  • Part number 603-5602 for accurate ordering and cross-reference

Detailed Description

This washer fluid reservoir is engineered as a replacement for the original washer tank on select vehicles. Dorman manufactures the 603-5602 to handle heat cycling and vibration in the engine compartment, helping maintain washer system function over time. For buyers searching for a washer fluid reservoir for Honda Civic or Toyota Corolla applications, this part number 603-5602 provides a straightforward OE-style service solution.

This part cross-references Monroe Shocks & Struts (e.g., 575.1062, 897855656) for the same application.

What It Helps Fix

  • Washer fluid leaks from a cracked reservoir
  • Low washer fluid storage caused by damaged plastic
  • Poor windshield washer system operation after reservoir failure
  • Broken or missing reservoir cap issues
  • Replacement needs after heat or vibration damage

Installation Notes and Tips

Verify the reservoir shape, mounting points, and hose routing against the original part before installation. Mounting hardware and mounting bracket are not included, so reuse existing components when serviceable. Confirm the cap seals properly and inspect washer hoses and pump connections during replacement. For Honda Civic and Toyota Corolla owners, matching the original reservoir configuration is important for proper fitment.

Quality Assurance

Dorman tests this reservoir for fit and performance on specific vehicle applications. The plastic construction and included cap support reliable service in the windshield washer system. Part number 603-5602 should be matched to the vehicle application before installation.

This part fits 110 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelFuel TypePositionNotes
2007ChevroletW3500 TiltmasterGASFront—
2007ChevroletW4500 Tiltmaster—Front—
2007ChevroletW5500 Tiltmaster—Front—
2007ChevroletW5500HD Tiltmaster—Front—
2007GMCW3500 ForwardGASFront—
2007GMCW4500 Forward—Front—
2007GMCW5500 Forward—Front—
2007GMCW5500HD Forward—Front—
2007IsuzuNPRGASFront—
2007IsuzuNPR-HD—Front—
2007IsuzuNQR—Front—
2007IsuzuNRR—Front—
2006ChevroletW3500 Tiltmaster—Front—
2006ChevroletW4500 Tiltmaster—Front—
2006ChevroletW5500 Tiltmaster—Front—
2006ChevroletW5500HD Tiltmaster—Front—
2006GMCW3500 Forward—Front—
2006GMCW4500 Forward—Front—
2006GMCW5500 Forward—Front—
2006GMCW5500HD Forward—Front—
2006IsuzuNPR—Front—
2006IsuzuNPR-HD—Front—
2006IsuzuNQR—Front—
2006IsuzuNRR—Front—
2005ChevroletW3500 Tiltmaster—Front—
2005ChevroletW4500 Tiltmaster—Front—
2005ChevroletW5500 Tiltmaster—Front—
2005ChevroletW5500HD Tiltmaster—Front—
2005GMCW3500 Forward—Front—
2005GMCW4500 Forward—Front—
2005GMCW5500 Forward—Front—
2005GMCW5500HD Forward—Front—
2005IsuzuNPR—Front—
2005IsuzuNPR-HD—Front—
2005IsuzuNQR—Front—
2005IsuzuNRR—Front—
2004ChevroletW3500 Tiltmaster—Front—
2004ChevroletW4500 Tiltmaster—Front—
2004ChevroletW5500 Tiltmaster—Front—
2004GMCW3500 Forward—Front—
2004GMCW4500 Forward—Front—
2004GMCW5500 Forward—Front—
2004IsuzuNPR—Front—
2004IsuzuNPR-HD—Front—
2004IsuzuNQR—Front—
2003ChevroletW3500 Tiltmaster—Front—
2003ChevroletW4500 Tiltmaster—Front—
2003ChevroletW5500 Tiltmaster—Front—
2003GMCW3500 Forward—Front—
2003GMCW4500 Forward—Front—
2003GMCW5500 Forward—Front—
2003IsuzuNPR—Front—
2003IsuzuNPR-HD—Front—
2003IsuzuNQR—Front—
2002ChevroletW3500 Tiltmaster—Front—
2002ChevroletW4500 Tiltmaster—Front—
2002ChevroletW5500 Tiltmaster—Front—
2002GMCW3500 Forward—Front—
2002GMCW4500 Forward—Front—
2002GMCW5500 Forward—Front—
2002IsuzuNPR—Front—
2002IsuzuNPR-HD—Front—
2002IsuzuNQR—Front—
2001ChevroletW3500 Tiltmaster—Front—
2001ChevroletW4500 Tiltmaster—Front—
2001ChevroletW5500 Tiltmaster—Front—
2001GMCW3500 Forward—Front—
2001GMCW4500 Forward—Front—
2001GMCW5500 Forward—Front—
2001IsuzuNPR—Front—
2001IsuzuNPR-HD—Front—
2001IsuzuNQR—Front—
2000ChevroletW3500 Tiltmaster—Front—
2000ChevroletW4500 Tiltmaster—Front—
2000ChevroletW5500 Tiltmaster—Front—
2000GMCW3500 Forward—Front—
2000GMCW4500 Forward—Front—
2000GMCW5500 Forward—Front—
2000IsuzuNPR—Front—
2000IsuzuNPR-HD—Front—
2000IsuzuNQR—Front—
1999ChevroletW3500 Tiltmaster—Front—
1999ChevroletW4500 Tiltmaster—Front—
1999ChevroletW5500 Tiltmaster—Front—
1999GMCW3500 Forward—Front—
1999GMCW4500 Forward—Front—
1999GMCW5500 Forward—Front—
1999IsuzuNPR—Front—
1999IsuzuNPR-HD—Front—
1999IsuzuNQR—Front—
1998ChevroletW3500 Tiltmaster—Front—
1998ChevroletW4500 Tiltmaster—Front—
1998GMCW3500 Forward—Front—
1998GMCW4500 Forward—Front—
1998IsuzuNPR—Front—
1997ChevroletW3500 Tiltmaster—Front—
1997ChevroletW4500 Tiltmaster—Front—
1997GMCW3500 Forward—Front—
1997GMCW4500 Forward—Front—
1997IsuzuNPR—Front—
1996ChevroletW3500 Tiltmaster—Front—
1996ChevroletW4500 Tiltmaster—Front—
1996GMCW3500 Forward—Front—
1996GMCW4500 Forward—Front—
1996IsuzuNPR—Front—
1995ChevroletW3500 Tiltmaster—FrontFrom 9/01/94
1995ChevroletW4500 Tiltmaster—FrontFrom 9/01/94
1995GMCW3500 Forward—FrontFrom 9/01/94
1995GMCW4500 Forward—FrontFrom 9/01/94
1995IsuzuNPR—FrontFrom 9/01/94
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
575.1062897855656