A replacement set of belts for use on a Kenworth W900L or Peterbilt 379/388/389 with a Caterpillar C15 or 3406E engine that has a 8/6 groove serpentine belt configuration for top mount style A/C bracket and a 15.75" fan mounting height (center of crank to center of fan hub)
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Reviews
Fits perfectly and shipping was good.