Installation instructions manual [PDF] (12 pages)
- Updated: 19.06.2026
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Thank you for your
Tonno Pro purchase!
Write serial
number here.
You have purchased one of the many quality Tonno Pro® branded products offered by Lund International. We take the utmost pride in
our products and want you to enjoy years of satisfaction from your investment. We have made every effort to ensure that your product
is top quality in terms of fit, durability, finish and ease of installation.
Please Read Before Installing!
Your satisfaction is important to us, please let us help!
If you are having any problems with your Tonno Pro® Tonneau Cover, please read
the following steps to help us quickly respond to your requests.
Please take care in saving the box until after your installation is
complete. If you have ordered incorrectly, having the original box and packaging
materials will save you time and prevent possible return damages.
ORDERED INCORRECTLY - Please contact the store from which you purchased the cover and allow them to contact us to issue a
Return Authorization number. The retailer will contact us immediately and we will respond promptly. You can call or email us to verify
the correct part number needed at 1(888) 477-3729.
SHIPPING DAMAGE - Please inspect your cover carefully and do not install if you see any damage. Report the damage to the
retailer where you purchased it from. They will contact us and we will take the necessary steps to send a new replacement cover.
BROKEN OR DAMAGE PART(S) - All parts are available for purchase on our website, www.tonnopro.com. Select the
“PARTS” option in the menu bar at the top of the page. We have included images of all the different parts that are available for your
cover. Your order will be shipped within 24 hours after your order is placed.
WARRANTY ISSUES - If you believe you have a warranty issue that may be considered a manufacturing defect, please follow
these instructions. For warranty details please see page 4 of this instruction booklet.
A. Make sure the product is registered on the Tonno Pro website, www.tonnopro.com/registration.
B. Contact the Tonno Pro retailer where you purchased the cover.
C. Please have your serial number and digital images readily available to email to the Tonno Pro Retailer upon request. This
will help expedite the warranty process.
D. Please allow up to 72 business hours for further instructions on how the claim will be processed.
For easy reference please write the serial number in the boxes below. Serial numbers can be found on the driver’s side front
crossbeam.
The material that your product is made from can
be recycled. Please also consider recycling the
packaging that your product came in.
I-SHEET NUMBER TONPRO-09 Rev. A
1. Center the cover on the front end of
the bed and the side rails, and begin
to tighten the clamps until they are
snug. Do not tighten completely.
Repeat on the opposite side of the
truck.
2. Unclip the snap clips located in the
front of the cover allowing the cover
to unfold. The cover has retaining
straps with quick-release buckles to
keep it from being damaged when
bulk hauling or when it is not on
the vehicle. Failure to install the
front slide-clamps properly will
result in cover fly-off which is
not covered by Manufacturer’s
Warranty.
TONNO FOLD | HARD FOLD
INSTALLATION INSTRUCTIONS
Hardware:
Everything comes pre-assembled. No hardware or tools are needed for this installation. The Front & Rear Clamps are the
main moving compenents. Please be sure you have 2 of each attached to the cover before you begin your installation.
Thumb Nut
Clamp
Adjust front slide-clamp
to proper height.
Slide front clamp holder
under truck bed rail.
Rotate thumb nut to tighten
clamp enough (not too tight).
Front Slide-Clamp Mechanism
Rear Slide EZ-Clamp Mechanism
Tighten
“Counter Clockwise”
Loosen
“Clockwise”
page 2
EZ Cam Clamp
Handle Lever
3. Unfold the cover completely and
begin to adjust the rear EZ-Clamps
at the rear of the bed. Again,
make sure they are snug but not
tightened completely. (Both
front and rear clamps will be
tightened completely in a later step.)
Rotate handle lever down from
its storage position. Adjust
clamps to proper height.
Slide handle lever to edge
of truck bed rail.
Rotate handle lever to locking
position. Repeat for opposite
side.
4. Shut the tailgate and make sure the cover is centered around the perimeter of the top of the truck bed. Being sure that
the clamps are just snug, you should be able to gently adjust the cover from front to rear or side to side as needed to
center the cover over the bed of your truck.
5. Once you have the cover in the desired position, pull the cover back into the open position in order to firmly tighten
the front clamps. When you pull the cover to the open position, it is important to make sure you
secure your rear clamping handles into the lock position to avoid damage to your cover.
Tighten
“Counter Clockwise”
Loosen
“Clockwise”
WARNING: Prior to vehicle operation, clamps must be secured so
that the clamp’s lips tightly grip the inner bedwall structure.
WARNING: Rear EZ-Clamps must be locked
in the closed position before folding the cover.
Failure to do so could cause damage to cover.
NON-WARRANTY!
6. Once you have tightened the front clamps and your Q gaskets are sealed, unfold the cover and make the necessary
adjustments to tighten and secure the rear clamps.
INSTALLATION INSTRUCTIONS
page 3
CONTINUED
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