Dorman 603-478 Washer Fluid Reservoir - Front

Washer Reservoir for Nissan Pickup

Dorman 603-478 is a windshield washer fluid reservoir built to match the original equipment fit and function on select Nissan Pickup applications. It is made from plastic with a white finish and includes a reservoir cap and mounting bracket for a direct replacement on the front washer system.

Fits 1994-2004 Nissan Pickup, front. This Dorman 603-478 washer fluid reservoir is a practical OE-style replacement for Nissan Pickup models that need a front washer tank restored to proper operation.

Key Features

• Plastic reservoir construction with a white finish
• Matches OE fit and function for specified applications
• Includes reservoir cap
• Includes mounting bracket
• Designed to withstand underhood heat and engine vibration
• Cross-references Dorman - HELP 91003 for the same application

Detailed Description

This washer fluid reservoir is engineered for 1994-2004 Nissan Pickup front applications where the original tank has cracked, leaked, or no longer holds washer fluid properly. Dorman 603-478 is shaped to align with the factory mounting points and system layout, helping restore washer fluid storage for the windshield washer system. The plastic reservoir is built for underhood conditions, including heat exposure and vibration, and the included cap and bracket support a complete replacement of the reservoir assembly.

For buyers searching for a 1994-2004 Nissan Pickup windshield washer reservoir, front washer tank, or OE replacement washer bottle, this part number provides a direct-fit solution. Dorman 603-478 also cross-references Nissan 28910G03G0 for the same application.

Common Problems It Can Solve

• Washer fluid leaking from a cracked reservoir
• Low washer fluid storage from a damaged tank
• Broken or missing reservoir cap
• Loose or unstable reservoir mounting
• Poor windshield washer system performance caused by reservoir failure

Installation Notes and Tips

Verify the vehicle year and front-position fitment before installation. Transfer any vehicle-specific washer system components as needed, and inspect the surrounding hoses, pump, and electrical connections for wear before installing the new reservoir. Confirm the cap seals properly and that the mounting bracket aligns with the factory location on the Nissan Pickup.

Quality Assurance

Dorman designs this reservoir to match original equipment fit and function and to handle the heat and vibration commonly found in the engine bay. It is built as a replacement part for specified vehicle applications, including 1994-2004 Nissan Pickup front fitment.