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
64 in stock
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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
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.