Dorman 42548 Windshield Wiper Arm - Front Left

Reliable Wiper Arm Replacement for Chevrolet and GMC Vehicles

The Dorman 42548 wiper arm is designed specifically for select Chevrolet and GMC trucks and SUVs, providing a durable and precise fit. Engineered with quality materials, this wiper arm ensures consistent windshield clearing performance for your vehicle.

• Constructed from steel, plastic, and rubber for strength and flexibility
• Measures 21.02 inches in length for optimal coverage
• Black finish to match factory appearance
• Features a hook-type wiper end for secure blade attachment
• Includes a spray nozzle for integrated washer fluid delivery
• Attachment via spine and flange nut for stable installation
• Specific fit for Chevrolet and GMC models including Silverado, Sierra, Tahoe, Yukon, and Suburban

Durable Materials and Precise Fitment

The Dorman 42548 wiper arm combines steel for structural integrity with plastic and rubber components to provide flexibility and weather resistance. Its 21.02-inch length is tailored to match the original equipment specifications of Chevrolet Sierra 1500, Silverado 2500 HD, Yukon XL 1500, and other compatible models. The black color maintains a factory look, while the hook-type wiper end ensures compatibility with standard wiper blades. The included spray nozzle integrates washer fluid delivery directly through the arm, enhancing windshield cleaning efficiency.

Compatible Chevrolet and GMC Models

This wiper arm is designed for specific fitment on Chevrolet and GMC vehicles, including:

• Chevrolet Sierra 1500, 1500 HD, 2500, 2500 HD, 3500
• Chevrolet Silverado 1500, 1500 HD, 2500, 2500 HD, 3500
• Chevrolet Suburban 1500, 2500
• Chevrolet Tahoe
• GMC Sierra 1500, 1500 HD, 2500, 2500 HD, 3500
• GMC Yukon, Yukon XL 1500, Yukon XL 2500

Common Issues Addressed by This Wiper Arm

• Wiper arm bending or breaking due to wear or impact
• Poor windshield contact causing streaks or missed spots
• Loose or unstable wiper blade attachment
• Damaged or clogged spray nozzle affecting washer fluid delivery
• Corrosion or rust compromising arm durability

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 42548 wiper arm carefully to the mounting point, ensuring the hook end is positioned correctly for blade attachment. Tighten the flange nut securely to prevent movement. The integrated spray nozzle should be connected to the washer fluid line for proper operation. No instruction manual is included, so consulting a vehicle-specific repair guide is recommended.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 42548 wiper arm undergoes quality checks to ensure durability and reliable performance on Chevrolet and GMC trucks and SUVs. Warranty coverage details can be obtained from the product packaging or Dorman's official resources.