Dorman 603-5401 Washer Fluid Reservoir

Dorman 603-5401 Washer Fluid Reservoir

Dorman 603-5401 is a replacement washer fluid reservoir built for underhood heat and engine vibration. It is a clear plastic reservoir with a cap included, made for specific vehicle applications where the original washer tank has cracked, leaked, or no longer holds fluid properly.

Key Features

• Plastic construction for routine underhood use
• Clear reservoir body for easier fluid level inspection
• Reservoir cap included
• Engineered for specific vehicle applications
• Part number 603-5401 for direct catalog lookup

Product Details

This washer fluid reservoir is a direct replacement component for vehicles that need a serviceable windshield washer tank. Dorman designs this part to handle heat cycling and vibration in the engine bay, helping restore proper washer fluid storage and delivery. For buyers searching for a washer fluid reservoir for Honda Civic or a Dorman 603-5401 replacement reservoir, this part provides a straightforward OE-style solution. It also cross-references Monroe Shocks & Struts (e.g., 575.1041, K11420) for the same application.

Common Issues It Can Address

• Washer fluid leaking from a cracked reservoir
• Low washer fluid capacity caused by damaged tank walls
• Broken or missing reservoir cap
• Washer system performance issues tied to a compromised fluid tank
• Replacement needs after heat or vibration damage

Installation Notes and Tips

Verify vehicle application before ordering, since fitment is application-specific and no vehicle list is provided here. Transfer any reusable washer system components as needed during installation, and inspect hoses, pump seals, and mounting points for wear before reassembly. The package contents include the reservoir cap; mounting hardware and a mounting bracket are not included.

Quality Assurance

Dorman manufactures this reservoir to meet fit and performance expectations for the listed application, with testing focused on underhood durability and proper fitment.