An impeller that stands up to applications with chemical exposure. Nitrile impellers are able to tolerate chemical exposure without breaking down. Ideal for fuel and oil transfer pumps, these impellers are also an excellent choice for boats run in contaminated waters. Sierra makes switching your Volvo Penta engine to a nitrile impeller a little easier by packaging the impeller with a gasket and O-ring together. Each impeller is engineered to meet or exceed Volvo specifications to ensure users of the proper fit and function. Key Features Parts included in the kit are engineered to meet or exceed manufacturer specifications Includes: impeller. O-ring and gasket Compatible with many Volvo applications (see our Engine Parts Selector to confirm this impeller is correct for your engine) as well Can be used on some Jabsco and Johnson pumps 18-3038 Application Guide ApplicationOEM Part NumberJabsco17937-0003, 920-0003Johnson Pump09-1028B-9Volvo Penta3841697, 877061-2, 21951356The 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.