Dorman 42578 Windshield Wiper Arm - Front Left

Overview of Dorman 42578 Wiper Arm for Cadillac Vehicles

The Dorman 42578 wiper arm is designed specifically for Cadillac DeVille, Eldorado, and Seville models. This replacement wiper arm ensures proper fit and function, restoring reliable windshield wiping performance for your vehicle.

• Constructed with durable steel, plastic, and rubber materials
• Measures 23 inches in length for optimal coverage
• Features a black finish to match factory appearance
• Equipped with a pin-type wiper end for secure blade attachment
• Uses spine and flange nut attachment method for stable installation
• Includes an integrated spray nozzle for washer fluid delivery
• Specific fitment for Cadillac DeVille, Eldorado, and Seville models

Detailed Product Description

The Dorman 42578 wiper arm combines steel strength with plastic and rubber components to provide a reliable and long-lasting replacement part. Its 23-inch length is tailored to fit the windshield dimensions of Cadillac DeVille, Eldorado, and Seville vehicles, ensuring effective wiping coverage. The black color maintains the original equipment look, while the pin-type wiper end allows for easy blade attachment and replacement. The integrated spray nozzle supports washer fluid delivery directly from the arm, enhancing windshield cleaning efficiency. Installation is secured via a spine and flange nut attachment method, providing a firm and stable connection to the vehicle.

Common Applications and Problem Resolution

• Replaces worn or bent wiper arms causing uneven wiping
• Restores proper blade alignment and contact with the windshield
• Fixes issues with loose or unstable wiper arm attachment
• Resolves washer fluid delivery problems due to damaged spray nozzles
• Improves visibility during adverse weather conditions for Cadillac DeVille, Eldorado, and Seville

Installation Notes and Tips

• Ensure vehicle compatibility with Cadillac DeVille, Eldorado, or Seville before installation
• Use appropriate tools to remove the spine and flange nut securely
• Align the wiper arm correctly to avoid windshield damage or improper wiping
• Check the spray nozzle for proper fluid flow after installation
• Consult vehicle service manual for torque specifications and detailed procedures

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 42578 wiper arm undergoes quality inspections to ensure durability and reliable performance. While no specific instruction manual is included, the part is engineered for straightforward installation on compatible Cadillac models. Warranty coverage details can be obtained from the product packaging or Dorman's official resources.