22692 Meyer Products Plow Side Harness Pump Plug 1 Piece Round E58 E61 E72 Straight BladeThese come on the straight blade plows with E58, E61 and E72 plow pumps. If you have one of these newer pumps with the weather connectors on the coils, this is what you need. It is a round plug with twenty pins: 2 large and 18 small.