BAK BAKFlip MX4 (GEN 3) 07-21 Tundra 6'6" w/oDeck Rail Sys w/oTrail Extended Stroage Boxes Model 448410 49" The AT78WX is designed to

The AT78WX is designed to allow you to see your gooseneck or fifth wheel without blocking the view during hook up to your trailer

Easy To Use Automatic Slam Latch Operates From Either Side

“Freedom Fill” Auxiliary Tank System Explanation

Fits: All full-size diesel pickups

338-3            48x39

BAK BAKFlip MX4 (GEN 3) 07-21 Tundra 6'6" w/oDeck Rail Sys w/oTrail Extended Stroage Boxes Model 448410 49" The AT78WX is designed toBAK BAKFlip MX4 (GEN 3) 07 21 Tundra 6'6" w oDeck Rail Sys w oTrail Spcl Ed Strg Bxs Model 448410 The best selling truck bed cover in the world just got better. Introducing the new and improved RealTruck BAKFlip MX4 (GEN 3)an evolution of RealTruck's most popular tonneau cover. This next generation upgrade builds on everything truck owners already love about MX4, now enhanced with improved functionality, greater durability, and elevated security. The