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Extang america's #1 selling truck bed cover

Extang Blackmax Tonneau Cover

Extang- makes America’s best selling soft tonneau covers- delivers BlackMax, a beautiful rich solid-black tonneau cover. From the black rail bows and straps, the BlackMax looks great rolled up or snapped tight.

Simple and strong, BlackMax features the “LeverLock” corner system that is a release lever that disengages the tail rail for quick access of hauling large loads- without any hassles or tools.

Exclusive BlackMax feature is the quick load option at the cab rail, at the front of the truck bed.

Extang's BlackMax include the Snap Stopper that keeps snaps secure on the rail when tarp is rolled up & secured. Indestructible and made from sports fiberglass reinforced nylon,Extang's snaps will not break.

The BlackMax also features Extang’s patented 4-way snaps which have a tension tab to prevent sliding and scratching the black rails.

Engineered for style but as important is function: The BlackMax is 4-way fully adjustable cover, operable in all seasons and extreme weather conditions, just position snaps at the desired weather setting for a perfect, tight fit.

No Tools! No Drilling! Easy Installation and no damage will be done to the truck body.

Extang blackmax cover
Extang Black Max Cover

In Stock Now, Ready to Ship

At Thoroughbred Diesel we have made our name selling diesel performance products. We are not opening up our inventory to include Extang tonneau covers. Extang is known for having the best truck bed covers on the market for the money.
  • One finger removal
    The BlackMax corners feature Extang’s impressive new “LeverLock™” attachment. Pull back the lever and the tail rail unlocks and quickly disengages for bulk hauling. When the lever latches you know it’s locked. “LeverLock™” securely stays in place and will not vibrate loose. All this with one finger!
  • Tarps designed for strength AND good looks
    Corners don’t buckle up due to parachute grade nylon corner reinforcements. Snaps & corners are backed with thick polymer forcing the corners and edges to lie smooth and look good in any weather. The thick polymer edging also keeps your snaps from ripping out!
  • Quicker installation
    Our TUFFKLAMPS™ simply drop into the rail channels (works well with bed liners). Easy on. Clamps tight.

  • Quick access to front of truck bed
    Quickly place items in the bed near your cab door, snap on the tarp, jump in and go!
  • Snaps are your tonno’s most important part
    Fiberglass reinforced nylon formula makes the BlackMax’s snaps strong and durable. Tested and proven under intense usage for years in the lab and field. Extang’s patented MAXSNAPS™ will not break.
  • Bow height adjustment
    Extang’s Monster Bows™ quickly spring on and off with no tools. It’s fast and easily done with one hand. The TUFFKLAMPs™ allow two bow heights: HIGH for maximum water shedding in harsh weather, and for improved gas mileage. LOW for sporty good looks and cold weather tonno attachment.
  • Extang makes the ONLY tonnos that work well in cold climates
    Stud low for tight fit in hot weather. Slide off, flip over, then slide on again. Stud high for looser fit in cold weather
  • Call 866-737-4966 for a price quote on this product.
    Thoroughbred Diesel logo glowing Thoroughbred Dieel Performance and Repair Shop
    4843 Rockwell rd.
    Winchester, KY 40391
    Call Toll Free: 1-866-737-4966

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