Impeller Kit | Volvo 21951350 Volvo Impeller Kit | 21951350 Original Volvo Penta impeller & key for multiple marine engine cooling applications. Volvo Penta impeller kit Fits Volvo MD21 and AQD21 model diesel engines Fits Volvo AQ115, AQ120, AQ125, AQ130, AQ131, AQ140, AQ145, AQ151, AQ171, and AQ251 model engines Keyed drive 12 impeller blades Includes key and impeller lubricant Original Volvo Penta Replaces Volvo 875575