Johnson Pump 09-808B-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 09-808B-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 to restore proper water flow and ensure reliable cooling performance.
Built with a durable marine-grade neoprene compound and a brass hub with a slotted pin-drive shaft, this impeller provides excellent flexibility, long service life, and dependable operation in both freshwater and saltwater environments.
This is a widely used small-frame impeller, commonly found in Volvo Penta saildrives, Westerbeke engines, and compact diesel systems.
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 maximum flow and durability
- Includes gasket and O-ring (kit version dependent)
Engine Compatibility
Volvo Penta Marine Engines
Common applications include:
- 120S saildrive series
- 2001 / 2002 / 2003 series
- MD series (MD1, MD2, MD3, MD5, MD6, MD7, MD11, MD17)
Westerbeke Marine Engines
- BEG / SBEG
- WMD
- BCD / BCDT
- BCGA / SBCG / BCGC / BCGB
Universal Marine Engines
- Various small diesel inboard applications
Other Diesel Engine Applications
Common across compact diesel platforms including:
- Bukh
- Yanmar (select pump setups)
- Kubota-based marine engines
- Lombardini / Farymann / Nanni
Johnson Pump Compatibility (Primary Fitment)
Fits Johnson F35 / F35B series raw water pumps, including:
- F35
- F35B
- F35B-8007
- F35B-8027
- K34A / K34M
- Threaded and slip port variants
➡️ 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: 1.57–1.58" (40 mm)
- Width: 0.75" (19 mm)
- Shaft: 12 mm (0.47") pin-drive
- Blade Count: 6 blades
- Material: MC97 neoprene / EPDM
What’s Included in the Kit
- Impeller
- O-ring
- Gasket (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
- Install with correct vane direction
- Ensure pin-drive alignment is correct
- Replace all seals and gaskets
- Inspect pump housing for wear
Alternate / Superseded Part Numbers
OEM Cross References
- Johnson Pump: 09-808B-1 / 09-808B
Major Cross References
- Volvo Penta: 875583-7, 833995, 3586496, 21951342
- Westerbeke: 032620, 46622, 46120, 42026
- Vetus: IMP00601
Aftermarket Cross References
- Jabsco: 22405-0001
- Sierra: 18-3076
- Mallory: 9-45709
- CEF: 500121
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
💡 Parts Desk Insight
This is one of the most common small Johnson impellers used in Volvo saildrive setups. The key identifier is the 6-blade design + 12mm pin-drive shaft—that combo instantly separates it from spline or keyed impellers 👍
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.