Water Pump Impeller for Johnson 09-1027B, Volvo Penta 3.0, 4.3, 5.0, 5.7 V6 V8 engines Jabsco 1210-0001 Sierra 18-3081 18-3277 3862281 21213660 21951346 OMC New impeller used by Volvo Penta, OMC, Johnson F5B pumps, Onan, Perkin, Yanmar, Jabsco and others Width 1-1/4" (31.5mm) . Diameter 2-1/4" (57mm) . 5/8 shaft 12 spline Includes O-rings and gaskets to fit mulitple applications. Recommended to replace annually. Install with dish soap. If purchasing for Volvo Penta or OMC it only fits pumps with short screws prior to 2005. Please see picture. Replaces: Volvo-Penta 825940, 860203, 3855546, 3858256, 3862281, 21213660, 876243, 3862567, 3856039 , 877400, 3862567 , 875811-2, 3856029, 21951346. Johnson 09-1027B, 09-1027B-1. Sierra 18-3081. Yanmar 129470-42530. GLM 89540