Dorman 603-178 Washer Fluid Reservoir - Front

Overview of Dorman 603-178 Washer Fluid Reservoir

The Dorman 603-178 washer fluid reservoir is designed for reliable windshield washer system performance in select Buick, Cadillac, Oldsmobile, and Pontiac vehicles. This replacement reservoir is made from durable plastic and includes a mounting bracket and cap for a secure fit.

• Constructed from durable white plastic material
• Includes mounting bracket for easy installation
• Comes with a reservoir cap to prevent fluid contamination
• Package contains one washer fluid reservoir and one cap
• Compatible with Buick Aurora, Cadillac DeVille, Oldsmobile Aurora, Pontiac Bonneville, and Buick LeSabre models

Product Details and Specifications

The Dorman 603-178 washer fluid reservoir is engineered to meet the specifications of original equipment for a proper fit and function. Its white plastic construction resists corrosion and wear from washer fluid exposure. The included mounting bracket ensures the reservoir can be securely attached to the vehicle frame, while the cap helps maintain fluid cleanliness and prevents leaks. This part is designed specifically for use in Buick Aurora, Cadillac DeVille, Oldsmobile Aurora, Pontiac Bonneville, and Buick LeSabre models, providing a direct replacement solution for worn or damaged reservoirs.

Compatible Vehicles and Applications

This washer fluid reservoir is compatible with the following makes and models:

• Buick Aurora and LeSabre
• Cadillac DeVille
• Oldsmobile Aurora
• Pontiac Bonneville

Using the Dorman 603-178 ensures proper fitment and function in these vehicles, maintaining the windshield washer system's effectiveness.

Common Issues Addressed by This Reservoir

• Leaking or cracked washer fluid reservoir
• Washer fluid contamination due to missing or damaged cap
• Loose or broken mounting bracket causing reservoir movement
• Inadequate fluid capacity affecting washer system performance
• Replacement of worn or damaged original equipment reservoir

Installation Notes and Tips

Installation of the Dorman 603-178 washer fluid reservoir requires basic hand tools. The included mounting bracket simplifies securing the reservoir to the vehicle. It is recommended to drain any remaining washer fluid before removal. Ensure the reservoir cap is properly seated after installation to prevent leaks and contamination. Verify all hose connections are secure to maintain proper fluid flow.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-178 washer fluid reservoir undergoes quality inspections to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.