Dorman 42578 Windshield Wiper Arm - Front Left

Dorman 42578 Front Left Wiper Arm

This Dorman windshield wiper arm is built for specific vehicle applications and matches the fit and function of the original front left arm. It is designed for dependable operation on Cadillac DeVille, Eldorado, and Seville models from the mid-1990s, with a black finish and a 23-inch length.

Key Features

• Direct-fit replacement wiper arm for specified vehicles
• Front left position application
• 23-inch length with black finish
• Constructed from plastic, rubber, and steel
• Attachment method: spine / flange nut
• Wiper end type: pin
• Package contents: wiper arm; spray nozzle

Detailed Description

Dorman 42578 is a specific-fit windshield wiper arm engineered to match the original arm’s fit and function on select Cadillac models. It is listed for 1994-1997 Cadillac DeVille, front left; 1992-1997 Cadillac Eldorado, front left; and 1992-1997 Cadillac Seville, front left. The combination of steel, plastic, and rubber materials supports durable service in a demanding exterior location, while the spine / flange nut attachment and pin-style wiper end help maintain proper connection to the vehicle’s wiper system. This part cross-references Monroe Shocks & Struts (e.g., 22155057) for the same application. For buyers searching for a 1994-1997 Cadillac DeVille front left wiper arm replacement or a 1992-1997 Cadillac Seville front left windshield wiper arm, Dorman 42578 provides a direct-match service part for the listed vehicles.

Common Problems This Part Can Address

• Wiper arm that no longer holds correct blade pressure on the windshield
• Broken, bent, or worn front left wiper arm assembly
• Improper blade sweep caused by a damaged arm connection
• Corrosion or wear at the original arm mounting point
• Poor windshield clearing on listed Cadillac DeVille, Eldorado, or Seville applications

Installation Notes and Tips

Verify the vehicle’s year, model, and front left position before ordering. Confirm the spine / flange nut attachment style and pin-type wiper end match the original hardware and linkage setup on the vehicle. Inspect the wiper pivot, blade condition, and spray nozzle routing during replacement to ensure the system operates correctly after installation.

Quality Assurance

Dorman designs this replacement wiper arm to match original fit and function for the specified applications and to support reliable performance in normal service.