F4 Impeller 12 Mm I.D. (Neoprene) | Johnson Pump 09-810B-1

F4 Impeller 12 Mm I.D. (Neoprene) | Johnson Pump 09-810B-1

Johnson Pump 09-810B-1 F4 Impeller — 12 mm I.D. Neoprene Replacement Component High-performance impeller assembly engineered for marine cooling and circulation systems. This six-blade unit features MC97 elastomer construction, delivering reliable fluid dynamics across freshwater and saltwater applications. Rated for 2-inch outer diameter with 0.87-inch axial width, the impeller mounts via slotted shaft pin drive for secure, repeatable installation. Direct replacement for Johnson Pump 09-10B and compatible with Volvo Penta 21972908, Westerbeke 34440/35746, and Yanmar 128990-42200 platforms. Neoprene composition resists thermal cycling and chemical degradation, extending service intervals in demanding marine environments. Ideal for engine cooling loops, raw water systems, and auxiliary circulation applications where durability and consistent performance are critical.

• Johnson Pump 09-810B-1 Volvo Penta Impeller Kit
• 6 Blade
• MC97 material
• 2 in. diameter
• .87 in. width
• Slotted shaft pin drive type
• Replaces Johnson Pump 09-10B
• Replaces Westerbeke 34440, 35746
• Replaces Volvo Penta 21972908
• Replaces Yanmar 128990-42200