Johnson Pump Impeller Kit Run-Dry Impellers are the only impellers in the world guaranteed to run-dry for 15 minutes. 2-1/4" Diameter x 1-1/4" Wide, 5/8" shaft diameter, 12 Pt. Spline Drive, 12 Blades Replaces Jabsco 1210-0001, Johnson 09-1027B-1, Sierra 18-3081, Perkins 0460038, CEF 500107, Onan 131-0050, Yanmar 129470-42531 & 129470-42531, Volvo 3858256, 875811 & 876243, Jabsco 30410-9001, Northern Lights 25-12057 Don't get stranded out on the water-- order a spare impeller today. Made in the USA. For water applications only. Includes impeller - does not include gasket or O-ring.