Dorman 42742 Windshield Wiper Arm - Front Left

Reliable Wiper Arm Replacement for Select GM Vehicles

The Dorman 42742 wiper arm is designed specifically for a range of Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Constructed from durable steel with a black finish, this wiper arm ensures a secure and precise fit for your vehicle's windshield wiper system.

Key Features of the Dorman 42742 Wiper Arm

• Material: Heavy-duty steel construction for strength and longevity
• Length: 24.75 inches, tailored to specific vehicle requirements
• Color: Black finish for corrosion resistance and aesthetic match
• Attachment Method: Spine with flange nut for secure mounting
• Wiper End Type: Pin style for compatibility with original wiper blades
• Fitment: Designed for specific GM models including Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac
• Package Contents: Includes one wiper arm

Detailed Description of the Dorman 42742 Wiper Arm

This Dorman wiper arm (part number 42742) is engineered to replace worn or damaged wiper arms on select GM vehicles. Its steel construction provides the necessary rigidity and durability to maintain consistent windshield contact, ensuring effective water and debris removal. The black finish offers resistance against rust and environmental wear, maintaining the arm's appearance and function over time. The 24.75-inch length and pin-type wiper end are designed to match the original equipment specifications for a precise fit and reliable performance.

Common Issues Addressed by This Wiper Arm

• Wiper arm bending or warping causing uneven blade contact
• Corrosion or rust compromising arm integrity
• Loose or damaged attachment points leading to wiper malfunction
• Incompatibility with replacement blades due to incorrect wiper end type
• Wear and tear from prolonged exposure to weather elements

Installation Notes and Tips

• Ensure the vehicle is parked with the ignition off before installation
• Remove the old wiper arm by loosening the flange nut and detaching from the spine
• Align the new Dorman 42742 wiper arm carefully with the pin attachment point
• Tighten the flange nut securely to prevent movement during operation
• Test the wiper arm movement to confirm proper installation and blade contact

Quality Assurance and Warranty Information

Dorman manufactures the 42742 wiper arm to meet or exceed OEM standards for fit and function. While no instruction manual is included, the part is designed for straightforward installation on compatible Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. This wiper arm is backed by Dorman's quality assurance protocols to ensure reliable performance and durability.