Johnson Pump 09-806B-1 Impeller Kit
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Johnson Pump 09-806B-1 Impeller Kit is a complete raw water pump service kit designed for Johnson F35 series pumps used in marine engine cooling systems. This kit includes a precision-molded MC97 neoprene impeller along with sealing components and lubricant to restore proper water flow and ensure reliable engine cooling.
Built with a durable marine-grade neoprene compound and a brass hub with a slotted pin-drive shaft, this impeller delivers excellent flexibility, long service life, and consistent performance in both freshwater and saltwater environments.
This is a widely used compact diesel impeller, commonly found in Volvo Penta, Yanmar, Bukh, and small marine diesel engines.
Key Features
- Genuine Johnson Pump impeller kit
- MC97 marine-grade neoprene / EPDM construction
- 6-blade flexible impeller design
- Brass hub with slotted pin-drive shaft
- Designed for efficient cooling flow and durability
- Includes gasket and O-ring for full service
Engine Compatibility
Volvo Penta Marine Engines
Common applications include:
- MD1 / MD2 / MD3
- MD6 / MD7
- MD21 / MD22
- 2001 / 2002 / 2003 series
- AQ / AQD series engines
Yanmar Marine Diesel Engines
- 1GM / 2GM / 3GM series
- YSM / YSB / YSE series
- SB8 / SB12 engines
Bukh Marine Engines
- DV10
- DV20 / DV20M
Perkins Marine Engines
- Various small diesel applications
- Cross reference fitment
Onan Marine Generators
- Generator cooling systems using Johnson pumps
Other Diesel Applications
- Farymann diesel engines
- Lombardini / Nanni
- Iveco Aifo marine engines
Johnson Pump Compatibility (Primary Fitment)
Fits Johnson F35 / F35B series raw water pumps, including:
- F35
- F35B
- F35B-8007
- F35B-8027
- Pump assemblies:
- 10-31934-1
- 10-32280-1
- 10-32388-1
- 10-32415-1
- 10-35039-1
➡️ Designed specifically for Johnson F35-series pump systems
Serial Number Fitment Notice
Fitment depends on:
- Pump model (F35 required)
- Shaft type (pin-drive / slotted shaft)
- Engine application
⚠️ Always confirm compatibility using your pump model or engine serial number before ordering.
Impeller Specifications (Fitment Critical)
- Diameter: 40 mm (1.57")
- Width: 19 mm (0.75")
- Shaft: ~9.5–12 mm pin-drive
- Blade Count: 6 blades
- Material: MC97 neoprene / EPDM
What’s Included in the Kit
- Impeller
- Pump cover gasket
- O-ring
- Lubricant (varies by kit version)
When This Part Needs Replacement
Replace the impeller if you notice:
- Reduced or no cooling water flow
- Engine overheating
- Cracked, missing, or stiff vanes
- Reduced performance under load
Recommended service interval: every 100 hours or annually
Installation Notes
- Lubricate impeller before installation
- Align pin-drive correctly during install
- Install with correct vane direction
- Replace all seals and gaskets
- Inspect pump housing and wear plate
Alternate / Superseded Part Numbers
OEM Cross References
- Johnson Pump: 09-806B-1 / 09-806B
Major Cross References
- Volvo Penta: 3586494, 876689, 803729, 875807
- Yanmar: 104211-42070
- Perkins: 24880272 / 24990272
- Onan: 132-0859
- Vetus: IMP00501
Aftermarket Cross References
- Jabsco: 4528-0001-P / 4528-0003-P
- Ancor: 2043
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
💡 Parts Desk Insight
The 09-806B-1 is easy to mix up with the 09-808B-1—but this one is smaller (40mm) and uses a pin-drive hub, not a spline. That detail is the quickest way to avoid a wrong order 👍
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.