Great for seasonal maintenance and to have as a spare for unexpected failures. Impellers are the heart of an engines cooling system. Running through silty or sandy water or running a pump dry can quickly ruin an impeller and cause the engine to overheat. Regular inspection and replacement of the impeller will keep your Chrysler or Mercury outboards cooling system running in top form. Every Sierra impeller is engineered to meet or exceed manufacturers specifications to ensure boaters and technicians of fit and function. Having a spare can save the day in the event of an unexpected failure. Key Features Impeller engineered to meet or exceed manufacturer specifications to ensure fit and function Fits: Force Outboard, 85HP(1975-89) 125HP A,B & C(1981-88) Sierra Part Number 18-3030 Application Table ApplicationOEM Part NumberChrysler/Force/US Marine47-803630T, F523065-1, F523065GLM89450Mallory9-45001, 9-45001-10Mercury Marine47-803630TThe Sierra Engine Parts SelectorIn addition to impeller kits, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see ourEngine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.