Despite the seller's misleading name, this is a genuine Gates belt of excellent quality. Note that the new Gates belt is about 1/4" shorter. Old belts stretch! Because of this, it's easier to reinstall an old belt than to install a new one. The Gates belt is good. Maybe yours Mechanic!. That means its installation requires the perfect tool and technique. When you first try to install a new belt, you won't be able to find it on all the pulleys. You'll get misplaced, it will slip, access is terrible, you can't use a long extension on the tensioner, the belt is too stiff and too short, think of a way to use the ratchet strap to pull the tensioner handle, pull a tool as far as possible and make sure it is running at full speed and is securely fastened The belt can then "simply" gel onto the smooth surface of the largest smooth surfaced pulley become.