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BAKFlip MX4 EZ-Lift Folding Tonneau Covers - 2014-2019 GM Silverado / Sierra 1500 5ft 9in Bed - 450120

MSRP: $1,649.99
$1,349.99
(You save $300.00 )
🇺🇸 Celebrate America250 | Summer of Freedom Sale | UNLOCK SAVINGS | Exclusions Apply. Contact For Details.

SKU:
bak450120
UPC:
192631077954
Condition:
New
Box Weight:
75.00 LBS
Shipping:
$100.00 (Fixed Shipping Cost)
Chevy Fitments:
Silverado 1500 High Country (2014–2018), Silverado 1500 LS (2015–2018), Silverado 1500 LT (2014–2018), Silverado 1500 LTZ (2014–2018), Silverado 1500 Custom (2016–2018), Silverado 1500 WT (2014–2018), Silverado 1500 SSV (2015–2018)
Chevy 2019 Classic Fitments:
Silverado 1500 LD LT (2019), Silverado 1500 LD LTZ (2019), Silverado 1500 LD Custom (2019), Silverado 1500 LD WT (2019)
GMC Fitments:
Sierra 1500 Base (2014–2018), Sierra 1500 SLE (2014–2018), Sierra 1500 SLT (2014–2018), Sierra 1500 Denali (2014–2018)

Shipping truck Free Shipping On Most Orders Over $99. Within The Continental US. A Signature Will Be REQUIRED For Delivery On All Orders Over $250.00. Exclusions May Apply.  Learn More

BAK 2014-2019 GM Silverado / Sierra 1500 5ft 9in Bed BAKFlip MX4 EZ-Lift - 450120

Protect your truck bed with one of the industry's most trusted hard folding tonneau covers. The RealTruck BAKFlip MX4 EZ-Lift is engineered specifically for the 2014 Chevrolet Silverado 1500, 2015 Chevrolet Silverado 1500, 2016 Chevrolet Silverado 1500, 2017 Chevrolet Silverado 1500, 2018 Chevrolet Silverado 1500, 2019 Chevrolet Silverado 1500 LD, as well as the 2014 GMC Sierra 1500, 2015 GMC Sierra 1500, 2016 GMC Sierra 1500, 2017 GMC Sierra 1500, and 2018 GMC Sierra 1500 equipped with the 5-foot 9-inch (69.9-inch) bed.

Featuring new EZ-Lift Technology, the BAKFlip MX4 makes opening and closing your tonneau cover smoother and easier than ever. Combined with Easy Open, Easy Fold, and Flip Assist technologies, you'll enjoy one-handed operation, full bed access, and premium cargo protection without sacrificing your truck's factory styling. Constructed with ultra-strong aluminum panels and a high-density polymer core, the MX4 delivers exceptional strength while maintaining a sleek, low-profile appearance that complements your Silverado or Sierra.

Whether you're searching for the best 2014 Silverado 1500 tonneau cover, 2016 Sierra 1500 hard folding bed cover, 2018 Silverado BAKFlip MX4, 2019 Silverado LD bed cover, or BAK 450120, this premium hard folding cover offers outstanding security, weather protection, and everyday convenience.


Important Vehicle Fitment Information

This tonneau cover fits ONLY:

  • 2014–2018 Chevrolet Silverado 1500
  • 2019 Chevrolet Silverado 1500 LD (Legacy Body Style)
  • 2014–2018 GMC Sierra 1500

Vehicle requirements:

  • 5'9" (69.9") bed
  • New body style introduced in 2014 (K2XX platform)
  • Standard pickup bed

Does NOT fit:

  • 6'6" bed models
  • 8' long bed models
  • 2019 Silverado 1500 (new T1 body style)
  • Silverado 2500HD or 3500HD
  • Sierra 2500HD or 3500HD

Always verify your truck's bed length before ordering.


Innovative EZ-Lift Technology

The latest generation BAKFlip MX4 features EZ-Lift Technology, significantly reducing the effort required to raise and lower the tonneau cover.

Combined with BAK's Easy Open and Easy Fold systems, operation is smoother than ever, allowing you to access your cargo with one hand—even while wearing work gloves.

Benefits include:

  • Reduced lifting effort
  • Smooth opening and closing
  • One-handed operation
  • Improved daily usability
  • Excellent for work trucks and recreational vehicles

Whether loading tools, camping gear, or construction materials, EZ-Lift makes accessing your truck bed fast and effortless.


Full Bed Access with Flip Assist

When maximum cargo space is needed, the MX4 folds completely against the cab using BAK's integrated Flip Assist System.

Advantages include:

  • 100% truck bed access
  • Secure upright driving position
  • Ideal for oversized cargo
  • No need to remove the cover
  • Easy transition between covered and open bed

This versatility makes the MX4 an excellent solution for contractors, outdoor enthusiasts, and everyday truck owners alike.


Heavy-Duty Aluminum Construction

The BAKFlip MX4 is engineered using ultra-strong aluminum panels bonded to a high-density polymer core, providing exceptional durability without excessive weight.

Construction highlights include:

  • Aircraft-grade aluminum panels
  • High-density polymer core
  • Matte black finish
  • Scratch-resistant surface
  • Corrosion-resistant construction
  • Lightweight yet incredibly strong

The result is a premium hard folding cover designed to withstand years of daily use while maintaining its appearance.


Outstanding Weather Protection

Keeping your cargo dry is one of the MX4's greatest strengths.

The cover incorporates:

  • Integrated perimeter seals
  • Heavy-duty weather stripping
  • Tight-fit clamp system
  • Drainage channels
  • Precision panel alignment

Together, these features help minimize water intrusion during rain, snow, and severe weather, protecting valuable tools, luggage, hunting equipment, camping gear, and everyday cargo.


Engineered for Extreme Conditions

The MX4 has been thoroughly tested to perform in some of the harshest environments.

Testing includes:

  • Temperatures from -40°F to 180°F
  • Up to 95% humidity
  • Long-term weather exposure
  • Repeated opening and closing cycles

Whether you live in northern winters, desert heat, or coastal humidity, the MX4 is built to perform year after year.


Maintains Factory Visibility

Unlike many aftermarket tonneau covers, the BAKFlip MX4 has been engineered to preserve visibility.

When installed, it does not block:

  • Factory third brake light
  • OEM rear backup camera
  • Rearward visibility during normal operation

The low-profile design complements the factory body lines while maintaining the clean appearance of your Silverado or Sierra.


Simple DIY Installation

Installation is straightforward thanks to BAK's click-in rail system.

Installation features include:

  • No drilling required on most applications
  • Installs in less than 30 minutes
  • Basic hand tools only
  • Clamp-on mounting system
  • Complete installation hardware included

Whether you're a first-time installer or experienced DIY enthusiast, the MX4 can typically be installed in your driveway in under half an hour.


Backed by RealTruck Quality

The BAKFlip MX4 is proudly manufactured using premium materials and backed by one of the industry's strongest support networks.

Every cover includes:

  • 5-Year Limited Warranty
  • US-based customer support
  • Premium engineering
  • Proven long-term durability

From job sites to weekend adventures, the MX4 is built to protect your cargo while enhancing the appearance and functionality of your truck.


Key Features

  • Fits 2014–2018 Chevrolet Silverado 1500 and GMC Sierra 1500
  • Fits 2019 Chevrolet Silverado 1500 LD (Legacy)
  • Designed for 5'9" bed
  • New EZ-Lift Technology
  • Easy Open and Easy Fold operation
  • Flip Assist system
  • One-handed opening
  • Full bed access when folded
  • Ultra-strong aluminum panels
  • High-density polymer core
  • Matte black finish
  • Integrated weather seals
  • Excellent water resistance
  • Does not block third brake light or OEM backup camera
  • No-drill installation on most applications
  • Typically installs in under 30 minutes
  • Tested from -40°F to 180°F
  • 5-Year Limited Warranty

Shipping & Returns

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HOW TO RETURN AN ORDER

To return an order, please contact us HERE, with detailed information regarding the return. We can only accept items that are in new condition and have never been installed. We cannot accept any used, previously installed, or damaged items. If an item is sent back to us used, previously installed and/or damaged, it is now the property of Just Bolt-On Performance Parts and no refund will be issued. All returns must include the provided Return Merchandise Authorization (RMA) form or RGA number, to help expedite the return process. We will then provide the Return Shipping Address for the return. Pictures of the parts being returned are also required. All returns are subject to a 20% Restocking Fee of the original purchase price. Some orders cannot be return – see the list of non-returnable orders below. 

RETURN POLICY

The buyer has 30 days from original purchase to initiate a return RMA and forward tracking information to us. No refund will be given for products that arrive after the 30 days from the original purchase date. Tracking information is required for all returns. When shipping an item back to us, we recommend that you use UPS, FedEx or any other carrier that offers signature confirmation and insurance, as we are not responsible for lost or damaged packages. Only the signature of an Just Bolt-On Performance Parts employee will suffice as proof of delivery. The customer agrees to bear all shipping and insurance charges, and all risk of loss during return shipment. If an order is refused “Returned to Sender”, no refund will be issued. Buyer is responsible for all return shipping charges.

We will not accept a return of an item that is damaged or defective if it has been used/installed, please inspect all orders as soon as you receive them and contact us HERE within 72 hours. If the order is damaged during shipment, Just Bolt-On Performance Parts will replace the item free of charge. 

When you purchase items that qualify for a promotional offer such as Buy "X" number of items, Get "X" number of items free, the discount reflecting the price of the lowest-priced item is proportionally applied to each eligible item. If any item is returned, the refund will be equal to the original price of the item reduced by the proportional discounted amount.

RECEIVED DAMAGED ORDER

We try our best to prevent damage to all packages during transit by packing each order carefully. From time to time, though, damage will occur despite our precautions.  If you receive an item that has been damaged in shipping, please call us within 72 hours of receipt and we will set up a claim for the product. Once this claim has been processed by the courier, we will reach out to you to return the product and send out a replacement.

We may request pictures to further assist with the completion of the claim.

The courier will reach out to you after the claim has been filed over the phone; please provide a reliable contact number when setting up your damage claim.

DEFECTIVE PRODUCTS

If you receive a defective product, please contact us within 72 hours, and we will process your return or replacement free of shipping charge. Contact us HERE to process your return.

In the event of a defect that occurs outside our return policy, but within the manufacturer warranty, please contact the manufacturer directly to process your return. The manufacturer will have sole determination of the outcome of the claim. As a courtesy to our customers, Just Bolt-On Performance Parts will be happy to try to facilitate a thorough review of the claim, but we have no final say in the decision made by the manufacturer (i.e. approvals, denials, fees, etc.).

Just Bolt-On Performance Parts is not responsible for any labor costs which occur as the result of the installation of wrong or defective parts.

NON-RETURNABLE ORDERS

Returns will not be given for the following items:

·       Just Bolt-On Performance Parts gift cards.

·       Any products sold as "Open Box". 

·       Non-defective used or installed items.

·       Wheels that have already been mounted and balance. This includes wheels packages from Just Bolt-On Performance Parts.

·       All special orders, custom, and/or built to order parts. This includes but not limited to, Weld Offroad, Addictive Desert Design, Rigid Industries, Please contact us prior with any questions. 

·       All electronics including but not limited to handheld devices and chargers.

·       Batteries, fluids, lubricants and all maintenance products.

·       All orders that required freight delivery.

·       International orders that shipped outside of the United States.

REFUNDS

Once the return is received, please allow 5-7 business days for the refund to be issued. All items included in the return are fully inspected by our Returns Department prior to issuing a refund. All refunds will be issued to the original payment method. Allow 3-5 business days for the refund to settle back to the original payment method. The original shipping and handling charges are non-refundable. Processing time will vary, depending on your financial institution. 


NEED TO CANCEL

We strongly suggest you call us at 1-844-526-2658 as soon as possible after placing your order if you need to change or cancel it, as orders are processed within minutes!  If you email us, we may not receive them in time to stop the order from shipping out.  Please double-check that your order details are correct before submitting your order during checkout.

An order that has already received tracking information and/or shipped cannot be canceled.  If an order has been assigned a tracking number but the tracking information has not updated, this does not mean the order has not shipped. Please contact us HERE to set up a Return Merchandise Authorization (RMA) once your order has been received.

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