OPEN BOX Undercover hard tonneau / GM Accessory PN GM1218L-GB8
Undercover PN: UC1218L-GB8
Please use these part numbers with your local shop & your VIN.
2019(new body) 2020 2021 2022 2023 GMC Sierra 1500 6'7" bed
paint code GB8 Black Meets Kettle
MSRP: $1,999
This is an open box. It may have been a return or an overstock. To our knowlege all parts are included. Pricing is under half of MSRP.
From Undercover:
Cargo Convenience
The UnderCover Elite LX comes standard with a Cargo Lanyard and removable LED light. Managing your truck bed has reached new levels of convenience.
Carpet Headliner
The Premium carpeted headliner provides a clean finish to the underside of the Elite LX.
Features
Heavy-duty and lightweight ABS composite construction
Color-matched, automotive-grade paint finish
Vehicle-specific design ensures a snug fitment
Patented X-Effect infrastructure increases rigidity
Weather-proof EPDM rubber double bulb seal system
Gas-charged struts hold the cover in the open position
Integrated lock mechanism for maximum security
Easy-to-use, one-hand-operated handle
Includes wall-mount hardware for easy storage
Soft-touch carpet headliner
Integrated, removable LED light and cargo retriever
Easy no-drill installation
500-lb. weight capacity (evenly distributed)
Limited 3-year warranty
Description
Protect your pickup’s bed in style with the UnderCover® Elite LX Tonneau Cover—a high-end one-piece bed cover offering a sleek paint-matched aesthetic, durable composite construction, and various accessories to warrant the premium price tag.
The UnderCover Elite LX Tonneau Cover offers all the features of the company’s traditional Elite truck bed cover, including durable ABS composite construction, an integrated lock mechanism for added security, and unmatched styling. Where the LX differs is its premium options, including a color-matched, automotive-grade paint job and a soft-touch carpet headliner.
With its robust ABS construction, the UnderCover Elite LX is far lighter than comparable fiberglass tonneau covers. While ABS doesn’t typically have the load-bearing strength of fiberglass, UnderCover solves this problem with its patented X-Effect infrastructure, which utilizes molded X-pattern bracing on the underside of the cover to improve rigidity and overall strength.







