Dorman 42554 Windshield Wiper Arm - Front Left

Reliable Wiper Arm Replacement for Buick, Cadillac, Chevrolet, and Oldsmobile

The Dorman 42554 wiper arm is designed specifically for select Buick, Cadillac, Chevrolet, and Oldsmobile models, including Caprice, Custom Cruiser, Fleetwood, Impala, and Roadmaster. This wiper arm ensures proper fit and function for your vehicle’s windshield wiper system.

• Constructed with durable steel, plastic, and rubber materials for long-lasting performance
• Measures 25 inches in length to match original equipment specifications
• Features a black finish for a clean, factory appearance
• Equipped with a pin-type wiper end for secure blade attachment
• Uses a spine and flange nut attachment method for stable installation
• Includes an integrated spray nozzle for windshield washer fluid delivery

Product Details and Specifications

The Dorman 42554 wiper arm combines steel strength with plastic and rubber components to provide a reliable and corrosion-resistant part. Its 25-inch length is tailored to fit specific vehicle models, ensuring optimal windshield coverage and wiping performance. The black color matches factory aesthetics, maintaining the original look of your Buick Caprice, Cadillac Fleetwood, Chevrolet Impala, or Oldsmobile Roadmaster. The pin-type wiper end allows for easy blade replacement, while the spine and flange nut attachment method secures the arm firmly to the vehicle. Additionally, the included spray nozzle integrates washer fluid delivery directly through the arm, enhancing windshield cleaning efficiency.

Compatible Vehicles and Applications

• Buick Caprice
• Cadillac Fleetwood
• Chevrolet Impala
• Oldsmobile Roadmaster
• Chevrolet Custom Cruiser

This wiper arm is a specific fit replacement designed to restore proper windshield wiping and washer fluid spray function on these models. It addresses issues related to worn or damaged wiper arms that can cause streaking, poor blade contact, or washer fluid misdirection.

Common Issues Addressed by This Wiper Arm

• Wiper arm bending or warping reducing blade contact
• Corrosion or rust weakening the arm structure
• Loose or damaged attachment causing wiper movement
• Malfunctioning spray nozzle affecting washer fluid delivery
• Worn pin-type wiper end preventing blade replacement

Installation Notes and Tips

Installation of the Dorman 42554 wiper arm requires removal of the old arm by loosening the flange nut and detaching the pin-type wiper end. Align the new arm carefully to the spine mount and secure it with the flange nut to ensure proper fit and function. No instruction manual is included, so consulting a vehicle-specific repair guide or professional assistance is recommended for accurate installation. Verify that the spray nozzle is properly connected to the washer fluid line to maintain cleaning performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 42554 wiper arm undergoes quality checks to ensure durability and reliable performance on compatible Buick, Cadillac, Chevrolet, and Oldsmobile vehicles. While no specific warranty information is provided, Dorman typically offers limited warranties on their replacement components. Refer to Dorman’s official documentation for detailed warranty terms.