Review on 🔧 ACDelco Heavy Duty K040378HD Specialty V-Ribbed Serpentine Belt by Kevin Lawson

I chose the HD version of this belt because it puts less stress on the engine and is more exposed to the elements. He arrived on time. Installation was relatively easy after I installed it on the air conditioner and pulley. Several attempts made to find the best way. Now I've calmed down after changing both belts. I decided to take the risk of not changing the AC belt tensioner as I have covered 145,000 miles and these trucks are known to go much longer. The original tensioner looked ok so I saved $35.