Give Your Tundra Bed a Lid That Opens Like It Weighs Nothing
Toyota Tundra owners have relied on the MX4 for years to keep gear dry and secure. The BAKFlip MX4 EZ-Lift keeps that same protection and adds a torsion assisted lift system, so raising the cover takes a fraction of the effort of a standard hard fold.
Key Features
- MPN 450409 EZ-Lift torsion assisted panels need only 10.5 lbs of lift force
- High density polymer reinforced aluminum panels
- Oversized paddle latch with Flip Assist unlatching
- Integrated perimeter seals and tight fit clamps for water resistance
- Keeps third brake light and integrated camera fully visible
- No drill clamp on installation in under 30 minutes
- Rated up to 400 lbs of evenly distributed weight
- Backed by a 5 year limited warranty from BAK
Fitment
| Year Range |
Make |
Model |
Trim |
| 2014-2021 |
Toyota |
Tundra |
1794 Edition |
| 2007-2021 |
Toyota |
Tundra |
Limited |
| 2021 |
Toyota |
Tundra |
Nightshade |
| 2010-2021 |
Toyota |
Tundra |
Platinum |
| 2007-2011 |
Toyota |
Tundra |
SR5 |
| 2014-2021 |
Toyota |
Tundra |
SR5 |
| 2021 |
Toyota |
Tundra |
Trail |
| 2015-2017 |
Toyota |
Tundra |
TRD Pro |
| 2019-2021 |
Toyota |
Tundra |
TRD Pro |
Specifications
| Detail |
Value |
| MPN |
450409 |
| UPC |
192631078043 |
| Material |
Aluminum panels with high density polymer core |
| Finish |
Matte black |
| Weight Capacity |
400 lbs evenly distributed |
| Lift Force |
10.5 lbs |
| Bed Size |
5 ft 7 in |
| Warranty |
5 year limited |
| Country of Assembly |
United States |
What's Included
- BAKFlip MX4 EZ-Lift tonneau cover panels
- Tight fit mounting clamps
- Hardware kit
- Installation instructions
About BAK
BAK Industries has spent decades engineering tonneau covers that balance security, weather protection, and everyday usability. As part of the RealTruck family, BAK builds every cover in the USA and stands behind its work with dedicated product experts and a long term warranty program.
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FAQ
What is the 450409?The 450409 is the BAK BAKFlip MX4 EZ-Lift hard folding tonneau cover built for 2007 to 2021 Toyota Tundra trucks with a 5 ft 7 in bed. It combines the trusted MX4 platform with a lighter torsion assisted lift system.
Does this tonneau cover require drilling to install?No. It uses a clamp on mounting system that attaches to the factory bed rails without drilling.
How much weight can this tonneau cover hold?It is rated to support up to 400 lbs of evenly distributed weight when closed.
Will this tonneau cover block my third brake light or backup camera?No. The cover keeps the third brake light and any integrated bed camera fully visible in every position.
What warranty comes with this tonneau cover?It is backed by a 5 year limited warranty covering defects in materials and workmanship.
Does this tonneau cover fit the TRD Pro trim?Yes. It fits the 2015 to 2017 and 2019 to 2021 Tundra TRD Pro along with SR5, Limited, Platinum, 1794 Edition, Nightshade, and Trail.
Can I still access the full bed with this tonneau cover installed?Yes. Folding the cover all the way against the cab provides 100 percent bed access.
How long does installation of this tonneau cover take?Most installers finish installing this tonneau cover in under 30 minutes using basic hand tools.
Install Instructions
- Measure and position the mounting clamps along the bed rails per the included template
- Secure the clamps to the bed rails without drilling
- Place the folded cover onto the mounted clamps and align the buckles toward the cab
- Attach the cover panels to the clamp brackets using the provided hardware
- Adjust the side rail tension until the cover seals evenly across the bed
- Test the paddle latch and folding operation before driving
WARNING
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov