Johnson Pump F35 MC97 Impeller Kit 1.58"SPX Flow Johnson Pump marine brand impellers are developed and manufactured for maximum flow and long life. Replaces Jabsco No 22405-0001.Features: Includes o-ring, gasket, and 7gms impeller lubricant; Stable pressure delivery over time; Significantly longer service life; Excellent self-priming capability; Minimized swelling; Minimized failures due to fatigue; Correct impeller dimensions; Correct cooling flow & sufficient cooling directly at start up; Specifications: Material: MC97 for cooling; Outer diameter: 1.58"; Inner diameter: 6 splines; Width: 0.75"; Application: Volvo Penta - MB, MD engines; Westerbeke - 8-10 kW; Onan - 5.0, 5.5, 6.0, 6.5, 7.5, 9.0;