part 43945 Plunger (M20 x 145) (M25 x 145) Cat Pumps code 43945 Details Cat Pumps number43945 DescriptionPlunger (M20 x 145) (M25 x 145) Qty per pump3 or 43866 Fits these pumps Cat Pumps 35 Frame 2 35013507HS Cat Pumps 38 Frame block-style 2 3801HS3811HS