Dorman 42797 | Front Right Windshield Wiper Arm

Part Number
Windshield Wiper Arm - Front Right

Fits: 86-91 Buick Skylark, 86-87 Buick Somerset, 86-87 Oldsmobile Calais, 86-91 Pontiac Grand Am, 88-91 Oldsmobile Cutlass Calais

Special Price $37.39 Regular Price $43.99
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This windshield wiper arm is designed to match the fit and function of the original arm on specified vehicles, and is engineered for durability and reliable performance.

BRAND: Dorman - HELP


  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
  • Buick 1991-86, Oldsmobile 1991-86, Pontiac 1991-86
  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life
  • Windshield, Wiper, Arm, Wipers, Arms
  • Direct replacement - this windshield wiper arm is designed to match the fit and function of the original arm on specified vehicles
  • Restores functionality - reliable replacement for an original wiper arm that has failed due to spring wear, snow damage, or metal fatigue
  • Windshield Wiper Arm - Front Right


Attachment MethodSpine / Flange Nut
Instruction Manual IncludedNo
Package ContentsWiper Arm
Universal Or Specific FitSpecific
Wiper End TypePin



  • NEEDA PARTS: 427972
  • General Motors: 20711718


  • 1986-1991 Buick Skylark - Position: Front Right
  • 1986-1987 Buick Somerset - Position: Front Right
  • 1986-1991 Pontiac Grand Am - Position: Front Right
  • 1986-1987 Oldsmobile Calais - Position: Front Right
  • 1988-1991 Oldsmobile Cutlass Calais - Position: Front Right
Customer Questions
Can I use Dorman parts to replace OEM parts?
Yes, Dorman parts can often be used as replacements for OEM parts, but it is important to carefully compare specifications and ensure compatibility.
How do I install Dorman shift linkage bushing?
To install a Dorman shift linkage bushing, first locate the old bushing and remove it if necessary. Apply lubricant to the Dorman bushing and slide it onto the shift linkage, tapping it into place with a soft tool until fully seated. Check the alignment and function of the shift linkage after installation.
Where is Dorman manufactured?
Dorman is a global automotive parts supplier with manufacturing facilities in the United States, Mexico, Canada, China, and India. Its headquarters and largest manufacturing facility are located in Colmar, Pennsylvania, USA.
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