Absolutely perfect fit and functionality. My 2001 F350 has 380,000 miles and the belt has started to lose some ribs. Replaced belts and did it again after a short while, so time to investigate. This tensioner is worn and tends to one side due to wear, causing the belt to move sideways, weakening the ribs over time. So this tensioner is a solution and the best part is that it is made in Canada and not China.
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