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Q. What does my car need to mount a Roof Cargo Box
A. See our Compatibility Page

Q. What Size is Right for My Vehicle?
A. Check Out Our Roof Box Comparison Chart Page

Q. Where Can I Buy TRUNX?
A. Check Out Our Where to Buy Page

Q. Can the TRUNX Carrier be mounted directly on the roof for vehicle storage?
A. No. It is designed to be mounted only to original equipment or aftermarket roof-rack systems that have a rated load of 150 pounds.

Q. Can I get replacement parts for the TRUNX Carrier?
A. Yes. Simply call Customer Service at (877) 454-3748 or email us at

Q. Are all the assembly and installation parts included?
A. Yes, all parts are included. Roof-rack systems with cross rails are not included but required for installation.

Q. Are tools required to assemble and install the TRUNX Carrier?
A. No, tools are not required.

Q. Are locks included?
A. Yes, one or two locks (depending on model) are included with the keys.

Q. What is the warranty?
A. The carrier includes a 3 year limited warranty to be free from manufacturing and materials defects.  Read the full warranty statement here.

Q. Can I paint the TRUNX Carrier?
A. We do not recommend it. The HDPE material has a built-in UV stabilizer to resist fading and is not designed to be painted.

Q. What is the weight-carrying capacity?
A. It is rated at 110 pounds of evenly distributed cargo for auto storage. See the owner’s manual for details.

Q. What should I do if the key breaks off in the keyway?
A. We recommend you contact a locksmith. They have special tools that can usually remove the piece of the key without damaging the lock.

Q. Is the TRUNX Carrier waterproof?
A. No. The cargo carrier is water resistant, but not waterproof. If closed correctly, TRUNX Cargo Boxes are designed to keep water out.

Q. What can I do to keep my lock cylinder from sticking?
A. We recommend periodically adding a small amount of lock-cylinder graphite to the lock cylinder, working it in with the key and moving it into the locked and unlocked positions.

Q. How do I know where to mount the carrier on the roof-rack cross bars?
A. We recommend you adjust the cross rails to the measurement specified in your Instruction Manual and align the carrier’s pre-drilled holes to this position. Be sure to not interfere with the opening and closing of the rear door and any roof-mounted antennas and navigation fins. In the event, the pre-drilled holes don’t align with your cross rail system, refer to your Instruction Booklet to learn how to drill additional holes for mounting.