Needle bearings are used and matched with heat treated shafts for longevity. Housings are 7075-t6 with hard anodized gear pockets as in all Waterman pumps. Standard 3/8 hex drive with swivel flange for easy installation as with all WRC fuel pumps. This pump weighs 1lb. 3oz. And is three quarters of a pound lighter than a standard sprint pump and the overall length has been shortened to a mere 3 inches.