If you need a 5?inch exhaust elbow for a classic Kenworth W900A, the 5?Inch Chrome Elbow is a solid solution designed to help route exhaust at the lower portion of the muffler or stack. This chrome?plated, multi?bend elbow fits the driver or passenger side of Kenworth W900A models from 1970 through 1982, with a 5?inch inlet and 5?inch outlet to match standard exhaust diameter. Finished in polished chrome and sold individually, it includes a one?year warranty against defects in workmanship and material from the date of purchase and replaces OE numbers like K180?10742 and K180?10742R. Because it?s a high?quality aftermarket part (not OEM), it provides a cost?effective option for restoring or customizing your truck?s exhaust system, though exact fit should be confirmed before installation.