Johnson F8B Marine Impeller – Volvo Penta TAMD40/AD40, D11B2 and Selected Diesel Applications
Johnson F8B Marine Impeller – Volvo Penta TAMD40/AD40, D11B2 and Selected Diesel Applications is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Johnson F8B Marine Impeller – Volvo Penta TAMD40/AD40, D11B2 and Se...
Johnson F8B Marine Impeller – Volvo Penta TAMD40/AD40, D11B2 and Selected Diesel Applications is backordered and will ship as soon as it is back in stock.
Product Details
The Johnson F8B Marine Impeller is a replacement raw-water pump impeller for selected Volvo Penta marine diesel applications. It is designed to move seawater or raw cooling water through the engine cooling system and is listed for applications including Volvo Penta TAMD40, AD40, and D11B2 configurations. Always confirm the pump, existing impeller dimensions, and reference number before ordering.
This impeller is cross-referenced in the supplied marine parts catalog with Volvo Penta reference 2170344 / REC21730344 and Jabsco reference 836-0001. These references are provided for identification and comparison; they do not replace checking the specific pump installation and engine configuration.
- Replacement impeller for compatible marine raw-water cooling pumps.
- Neoprene construction suitable for raw-water marine cooling service.
- Single impeller supplied; this listing is not a gasket, O-ring, or lubricant kit.
- Verify the pump cover, hub style, dimensions, and reference number before installation.
Verified Reference Numbers
The following manufacturer and catalog references are associated with this impeller in the available marine parts documentation.
| Brand | Reference |
|---|---|
| Johnson | 09-1029B |
| Volvo Penta | 2170344 |
| Volvo Penta / catalog reference | REC21730344 |
| Jabsco | 836-0001 |
Engine & Model Compatibility
The available catalog application data associates this impeller with the following Volvo Penta applications. Model, pump, production version, and serial conditions must be checked together because similar engine families may use different impellers.
| Manufacturer | Application | Application notes | Reference |
|---|---|---|---|
| Volvo Penta | TAMD40 | Catalog application; confirm the installed raw-water pump and impeller dimensions. | 2170344 / REC21730344 |
| Volvo Penta | AD40 | Catalog application; confirm the installed raw-water pump and impeller dimensions. | 2170344 / REC21730344 |
| Volvo Penta | D11B2 | Catalog application; verify the exact pump and engine configuration before purchase. | 2170344 / REC21730344 |
| Volvo Penta | Additional Volvo Penta diesel applications | Other catalog listings may use this reference, but application scope can vary by pump, model version, and serial condition. Match the original impeller before ordering. | 2170344 / REC21730344 |
Technical Specifications
- Product Type
- Marine raw-water pump impeller
- Material
- Neoprene
- Approximate Diameter
- 96 mm
- Approximate Width
- 63.1 mm
- Hub / Bore Dimension
- 22.5 mm as listed in the supplied impeller dimension table
- Number of Blades
- 9
- Service
- Raw-water marine engine cooling systems
- Package Type
- Single replacement impeller
What’s in the Box
- 1 x Johnson F8B replacement impeller
Gaskets, O-rings, cover-plate hardware, and lubricant are not confirmed as included with this single impeller listing.
Installation Notes
- Shut off the engine, close the raw-water seacock, and allow the cooling system to cool completely.
- Locate the raw-water pump and remove the cover plate according to the engine or pump manufacturer’s instructions.
- Remove the old impeller with an appropriate puller where possible, taking care not to damage the pump housing.
- Inspect the pump cover, housing, key or drive interface, and sealing surfaces for wear, scoring, debris, or damage.
- Compare the replacement impeller with the original for diameter, width, hub or bore, blade count, and drive configuration before fitting.
- Use a suitable installation lubricant compatible with neoprene and the pump manufacturer’s instructions. Do not assume lubricant or a new gasket is included.
- Install the impeller in the correct pump orientation and refit the cover with an appropriate gasket or O-ring.
- Open the raw-water seacock, start the engine, and check immediately for water flow, leaks, and abnormal temperature.
Troubleshooting & FAQ
How do I confirm that this impeller fits my engine?
Match your existing manufacturer reference and compare the old impeller’s diameter, width, hub or bore, blade count, and drive configuration. Engine-family names alone are not sufficient because different pumps and production versions can use different impellers.
Which reference numbers are associated with this impeller?
The available catalog documentation associates the impeller with Johnson 09-1029B, Volvo Penta 2170344 / REC21730344, and Jabsco 836-0001. Confirm the number printed on your existing impeller or listed for your pump before ordering.
What are the signs of a worn impeller?
Common signs include reduced cooling-water flow, higher-than-normal engine temperature, overheating, cracked or missing blades, and neoprene that has become hard or brittle. An impeller that has been run dry should be inspected carefully.
How often should the impeller be replaced?
Inspect the impeller at the interval recommended by the engine or pump manufacturer. Replacement frequency depends on operating hours, water quality, storage conditions, and whether the pump has been operated without adequate water supply.
Is this an OEM part?
This listing is for a replacement impeller. Johnson, Volvo Penta, and Jabsco names and reference numbers are used to identify applicable parts and cross-references; this listing should not be interpreted as an OEM Volvo Penta or Jabsco package.
Does the package include gaskets or lubricant?
No additional gasket, O-ring, or lubricant is confirmed as included. The package is listed as one replacement impeller, so obtain any required sealing parts and installation lubricant separately if needed.
Safety & Important Information
- Close the raw-water seacock and allow the engine to cool before servicing the pump.
- Confirm dimensions and the pump application before purchase; a model name or reference that appears similar does not by itself establish fitment.
- Do not operate the engine without adequate raw-water supply after installation.
- Inspect the pump housing and remove any broken blade fragments from the cooling circuit after an impeller failure.
- Professional installation is recommended when the pump, drive interface, or engine application is uncertain.
About Sea Sierra
- Marine Parts Support — We provide replacement components for marine cooling and propulsion systems.
- Application-Focused Information — Reference numbers and fitment details are supplied to help customers compare the replacement with the original part.
- Worldwide Fulfillment — Delivery options and estimated transit times are shown at checkout based on destination and service availability.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
