Dorman 42555 Windshield Wiper Arm - Front Right

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

The Dorman 42555 wiper arm is designed specifically for select Buick, Cadillac, Chevrolet, and Oldsmobile models, including Caprice, Custom Cruiser, Fleetwood, Impala, and Roadmaster. This replacement 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 21.5 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
• Includes an integrated spray nozzle for windshield washer fluid delivery
• Attachment method uses spine and flange nut for stable installation
• Designed for specific fitment on Buick, Cadillac, Chevrolet, and Oldsmobile models

Durable Construction and Precise Fit

The Dorman 42555 wiper arm combines steel, plastic, and rubber components to provide a balance of strength and flexibility. The steel arm offers structural integrity, while the plastic and rubber parts help reduce wear and ensure smooth operation. At 21.5 inches in length, this wiper arm matches the original equipment dimensions, maintaining proper windshield coverage and wiping performance. The black color finish complements the vehicle's exterior, preserving the factory look.

Compatible Vehicle Models and Applications

This wiper arm is specifically engineered for use on Buick Caprice, Cadillac Fleetwood, Chevrolet Impala, Oldsmobile Roadmaster, and Chevrolet Custom Cruiser models. Its pin-type wiper end and spine/flange nut attachment method ensure a secure connection to the wiper blade and vehicle mounting points. The included spray nozzle integrates windshield washer fluid delivery, supporting clear visibility during adverse weather conditions.

Common Issues Addressed by This Wiper Arm

• Worn or bent wiper arm causing uneven windshield contact
• Broken or damaged attachment points leading to blade detachment
• Malfunctioning spray nozzle affecting washer fluid distribution
• Corroded or rusted arm reducing wiping efficiency
• Incorrect length or fit causing streaking or missed areas

Installation Notes and Tips

Installation requires removal of the old wiper arm by loosening the flange nut and detaching the pin-type connection. Align the Dorman 42555 wiper arm carefully with the mounting point, ensuring the spray nozzle is properly positioned. Tighten the flange nut securely to prevent movement during operation. No instruction manual is included, so consulting a vehicle-specific repair guide or professional assistance is recommended for proper installation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 42555 wiper arm undergoes quality checks to ensure durability and reliable performance. While no specific warranty details are provided with this part, Dorman typically offers limited warranties on their replacement components. Verify warranty terms with the product documentation or supplier.