Globe Marine Run-Dry&reg; Impeller Model 331M for Jabsco 18653-0001, 653-0001, Johnson 09-810B1-1, Westebeke 34440, CEF 500101 & Yanmar 128990-42200 Made With Run-Dry-- Only Impeller in the World Guaranteed to Run-Dry for Up to 15 Minutes 2"x 7/8" Deep, 12 mm shaft diameter, Pin Drive, 6 Blades Replaces Jabsco 653-0001, 18653-0001, Westerbeke 34440, Johnson Pump 09-810B-1, Yanmar 128990-42200, CEF 500101, DJ Pump 08-39-0601, Yanmar X08810B Don't get stranded out on the water-- order a spare impeller too. Made in the USA. For water applications only. Includes impeller- does not include gaskets or O-rings.