• BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
  • BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500
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BAK448121

BAK

BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500

BAK BAKFlip MX4 Hard Folding Bed Cover - 6 ft 6 in Bed, Matte Finish | 2014-2018 GMC Sierra 1500

$1,199.99 USD
$1,199.99 USD
Sale Sold out
Shipping calculated at checkout.

The BAK BAKFlip MX4 (GEN 3) fits the 2014-2018 GMC Sierra 1500 6ft 6in bed and delivers a hard folding tonneau with heavy-duty aluminum panels and a flush, matte black finish.

Install Difficulty: DIY Possible
Clamps to factory bed rails with included hardware; typically installs in 30-45 minutes with no drilling required.

Product Overview

The MX4 (GEN 3) uses heavy-duty aluminum top panels and side rails reinforced with high-density polymer cores. Each panel is 22 percent stronger than the original MX4.

Security comes from BAK's patented auto-latching system and re-engineered lock components for improved resistance to forced entry. EPDM rubber perimeter seals and a 13 percent longer dual-action tailgate seal keep water out.

The cover sits flush with the bed rails for a clean, low-profile look on your Sierra 1500.

Features & Specifications

  • Fits: 2014-2018 GMC Sierra 1500
  • 6ft 6in bed length fitment
  • Heavy-duty aluminum panels with high-density polymer cores
  • 22 percent stronger panels vs original MX4
  • Patented auto-latching system secures cover when closed
  • Re-engineered locks resist forced entry
  • EPDM rubber perimeter seals block water seepage
  • 13 percent longer dual-action tailgate seal
  • Flush-mount design with matte black textured finish

Fitment

This part fits the following vehicles:

Year Make Model Submodel
2014-2018 GMC Sierra 1500 Base
2014-2018 GMC Sierra 1500 Denali
2014-2018 GMC Sierra 1500 SLE
2014-2018 GMC Sierra 1500 SLT
2019 GMC Sierra 1500 Limited Base
2019 GMC Sierra 1500 Limited SLE
âš  Submodel Fitment: If your submodel is not listed in the fitment table above, we cannot confirm fitment. Please contact us before purchasing to verify.

Shipping & Returns

Products that are in stock ship within 1-3 business days of being ordered. Please note some items are made to order, or could be out of stock. If you have any questions regarding stock please contact us through the live chat or email and we would be happy to help

Warranty Info

All warranties are through the manufacturer, they will be facilitated by State Side Performance (some manufacturers require the end user contact the manufacturer directly to facilitate the warranty, in that case we will recommend you contact the manufacturer. Please contact us by Email if you have any questions or concerns regarding a warranty claim.

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  • Free Shipping for Non Oversize Items of $250

    Free shipping applies to items that are shipped via ground through UPS or FedEx and are over $250 going to the continental 48 states. This does not apply to Alaska or Hawaii, and does not apply to any item(s) that are shipped via freight or with any other option other than ground shipping.

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  • Return Policy

    Returns must be UNOPENED, UNUSED, HAVE ALL ORIGINAL PACKAGING, BE IN NEW CONDITION, HAVE A VALID RMA, BE WITHIN A 30 DAY RETURN WINDOW FROM THE DATE OF PURCHASE.

    More info on refund and return policy