Globe Marine Run-Dry&reg; Impeller Model 090 for Jabsco 11979-0001 Made With Run-Dry-- Guaranteed to Run-Dry for Up to 15 Minutes 2-9/16" Outer Diameter X 1-7/16" Wide, 5/8" Shaft Diameter, 12 Pt. Spline Drive, Brass, 8 Blades Replaces Jabsco 11979-0001 impeller, DJ Pump 08-40-0801. Fits Chrysler LM318, 318X, LM340, LM340X, Chris-Craft 454 CI, Jabsco Macerators 18930 & 18940 Series. Don't get stranded out on the water -- order a spare impeller today. For water applications only. Brass Core. Made in the USA. Does not include gaskets or O-rings.