MAT - EDI

  (A.O. Smith) Unit bogging down? Replace this if no continuity.If needle drops to zero and slowly rises, it is probably good.  

For pumps that end in "AV" ONLY! Includes crankshaft, bearings, rings, conrods, and pistons. NOTE! This will not fit pump models ending in "AJ".

Ring Set for both pistons for the Kobalt v-twin, two-stage air compressor pump. Includes stagger rings and hone cylinders.

Keeps your unit from slipping out of your hands.