Review on Motorcraft BT 46 Belt Tensioner by Joseph Pudic

I used this belt tensioner to tighten the 22 year old original tensioner on my 1997 Ford Ranger XLT 4.0L V6 substitute. The new one looks exactly like the one I replaced. Pros: - The spring mechanism is durable. - Tension roller bearing is firm and smooth-running. - The tensioner pulley has almost no runout. - Existing mounting bolt fits correctly. The tensioner body is properly aligned with the square notches (keys) on the block. - Works well after installation. Cons: - None yet.