Dorman 602-079 Windshield Wiper Linkage

Dorman 602-079 Wiper Linkage for Select GM Trucks

Dorman 602-079 is a direct replacement windshield wiper linkage engineered to match the function and performance of the original assembly on select Chevrolet Silverado and GMC Sierra trucks. It restores mechanical wiper movement when the factory linkage is worn, loose, or no longer transferring motion correctly.

• Specific-fit replacement for select 2007-2010 Chevrolet Silverado and GMC Sierra applications
• Mechanical driver type with clockwise rotation direction
• Two-piece linkage configuration with bracket-style frame
• Bolt-on attachment method for OE-style mounting
• Black standard replacement finish
• Steel bushings for durable pivot support
• Length: 31.5 in.; wiper arm pivot point diameter: 0.36 in.
• Package contents: 1 wiper transmission

OE-Style Function and Fitment

This wiper linkage is built as a standard replacement for the original transmission assembly used on select Chevrolet Silverado 1500, Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 HD, GMC Sierra, Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD models. It is engineered to restore the linkage motion that connects the wiper motor to the wiper arms, helping return consistent windshield sweep performance. Dorman 602-079 also cross-references OE part number 20837131 for the same application.

What It Helps Fix

• Wipers that stop moving or move intermittently
• Loose, worn, or broken linkage joints
• Uneven or incomplete windshield sweep
• Noise or binding from worn pivot points
• Loss of wiper motion caused by failed transmission components

Installation Notes

Verify vehicle-specific RPO and assembly-plant notes before ordering, since fitment is limited to select Silverado and Sierra builds. This linkage uses a bolt-on attachment method and is designed for mechanical wiper systems with clockwise rotation. Confirm pivot diameter, linkage length, and bracket style against the original assembly before installation.

Quality Assurance

Dorman engineers this replacement linkage to match the original part’s function and performance on the listed applications. It is a standard replacement component built for direct-fit service on compatible Chevrolet Silverado and GMC Sierra trucks.