GM Genuine Parts Driver Side Underbody Rear Cross Sill Extension
OE
Pack of 1

GM Genuine Parts Driver Side Underbody Rear Cross Sill Extension

GM Part #84598188

MSRP$27.92*

GM Genuine Parts Body Panel Extensions are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • Completes the appearance of your vehicle's body panel
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.

Pack of 1

About this product

GM Genuine Parts Body Panel Extensions are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These extensions complete the appearance of your vehicle's body panel. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

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  • Completes the appearance of your vehicle's body panel
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Collision parts are designed to help promote proper and safe repair

MaterialSteel
Mounting Hardware IncludedNo
Drilling RequiredNo
Thickness0.05 in / 1.2 mm
Width6.54 in / 166 mm
Length11.27 in / 286.15 mm
ClassificationOE
Mounting Hole Quantity2

Limited Lifetime Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

  • Before the purchase and installation of a body panel extension, make sure it is the correct fit for your vehicle.
  • Regularly inspect body panel extensions for signs of damage or wear, and replace them if signs of damage are found.
  • Refer to your Vehicle Owner's manual for additional vehicle maintenance practices.

Signs of wear or damage for body panel extensions include but are not limited to:

  • Loose or misaligned extension
  • Faded or worn finish

ModelBody StyleTrimYear(s)
Suburban2021, 2022, 2023, 2024, 2025, 2026