Dorman 42551 Windshield Wiper Arm - Rear

Reliable Wiper Arm Replacement for Select GM SUVs

The Dorman 42551 wiper arm is designed specifically for select Cadillac, Chevrolet, and GMC SUVs, including the Escalade, Suburban, Tahoe, and Yukon models. 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 18.57 inches in length to match original equipment specifications
• Features a black finish for a clean, factory appearance
• Includes a spray nozzle for integrated washer fluid delivery
• Attachment method uses spine and flange nut for secure installation
• Designed with a hook-type wiper end for compatibility with specific wiper blades

Product Details and Specifications

The Dorman 42551 wiper arm combines steel for strength, plastic for flexibility, and rubber components to ensure smooth operation. Its 18.57-inch length matches the original equipment dimensions for a precise fit on Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Suburban 1500 and 2500, Tahoe, and GMC Yukon, Yukon XL 1500, and Yukon XL 2500 models. The black color maintains the vehicle’s original aesthetic. This wiper arm uses a spine and flange nut attachment method, providing a secure and stable connection to the vehicle’s wiper system. The hook-type wiper end is compatible with specific wiper blades designed for these models. Additionally, the included spray nozzle integrates washer fluid delivery directly through the arm for efficient windshield cleaning.

Compatible Vehicles and Applications

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Suburban 1500, Suburban 2500, Tahoe
• GMC Yukon, Yukon XL 1500, Yukon XL 2500

This wiper arm is intended for use as a direct replacement part to restore proper windshield wiping and washer fluid spray function on the listed vehicles.

Common Issues Addressed by This Wiper Arm

• Worn or bent wiper arm causing uneven windshield contact
• Broken or damaged attachment points leading to loose wiper operation
• Malfunctioning spray nozzle affecting washer fluid delivery
• Corroded or rusted arm reducing wiping efficiency
• Incorrect wiper blade fit due to damaged wiper end

Installation Notes and Tips

Installation requires removal of the old wiper arm by loosening the flange nut and detaching the spine attachment. Align the new Dorman 42551 wiper arm carefully to the mounting point, ensuring the hook-type wiper end is properly oriented for blade attachment. Tighten the flange nut securely to prevent movement. Connect the spray nozzle hose to restore washer fluid functionality. No instruction manual is included, so consulting a vehicle-specific repair guide or professional installation is recommended for best results.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 42551 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 distributor or vehicle service provider.