GM Genuine Parts Plenum Lower Panel Extension
OE
Pack of 1

GM Genuine Parts Plenum Lower Panel Extension

GM Part #85646748

ACDelco Part #85646748

MSRP$34.75*

Completes the appearance of your vehicle's cowl panel ⚠ WARNING: Cancer and Reproductive Harm - www.

  • 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

Pack of 1

About this product

Completes the appearance of your vehicle's cowl panel

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • 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

Product Specifications

Width1.39 in / 35.42 mm
MaterialSteel
Mounting Hardware IncludedNo
Height1.18 in / 29.93 mm
ClassificationOE
Length19.24 in / 488.7 mm

24 Months/Unlimited Miles Limited 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 cowl panel extension, make sure it is the correct fit for your vehicle.
  • Regularly inspect cowl 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 cowl panel extensions include but are not limited to:

  • Loose or misaligned extension
  • Faded or worn finish

ModelBody StyleTrimYear(s)
Silverado EV2024, 2025, 2026