EXPLODED PARTS DIAGRAM

Honda BF25–BF50 Water Pump and Impeller Parts Diagram

Use this Honda exploded diagram to identify water-pump housing, inner cover, impeller, key, plate, gaskets and seals shown for Honda BF25–BF50. Match the numbered callout to the RECMAR reference and OEM cross-reference, then check the exact model, serial details and every row-level distinction before choosing a part.

Application / serial scope

The repeated source drawing is headed BF25 to BF50 and covers the water-pump assembly. Confirm the complete model designation and every printed reference before selecting a housing, impeller, plate, gasket, seal or O-ring.

Last reviewed
2 September 2026
Parts listed
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Read more about the parts and fitment in this exploded diagram
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Exploded diagram artwork pending The final artwork for Honda BF25–BF50 Water Pump and Impeller Parts Diagram is being prepared. Use the model, scope and OEM reference guidance on this page in the meantime. Exploded diagram artwork pending Use the model and OEM reference guidance below.

Parts schedule

Find your part

Add a part straight to your cart, or use Add to list to build a parts list from this diagram. Select a reference or part description to view full product details.

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Confirm the model, serial range and assembly details before ordering. The UN value is not the cart quantity.

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Water Pump and Impeller Parts shown in this diagram

The source is headed Honda BF25–BF50 and covers water-pump housing, inner cover, impeller, key, plate, gaskets and seals. The heading defines the route to this figure; it does not make every scheduled component interchangeable across every version.

Gearcase and water-pump checks

Use the numbered position and exact reference. Confirm the model, shaft and every seal, bearing, pump or hardware alternative printed for the selected row.

How to use this Honda diagram and schedule

  1. Record the complete Honda model designation and serial details.
  2. Locate the component and note its numbered callout.
  3. Match that callout to the RECMAR and OEM references in the schedule.
  4. Apply every model, serial, shaft and configuration note on the row.
  5. Compare the selected replacement with the removed part before installation.

Application and reference limits

The repeated source drawing is headed BF25 to BF50 and covers the water-pump assembly. Confirm the complete model designation and every printed reference before selecting a housing, impeller, plate, gasket, seal or O-ring.

An OEM number is an identification cross-reference, not proof that every row fits every outboard named in the page heading. The exact row, model and reference control selection.

Continue with the Honda outboard parts hub, complete exploded diagram library or TMP Global Parts Finder.

Frequently asked questions

Which parts are covered by this Honda BF25–BF50 diagram?

It covers the water pump and impeller parts shown by the numbered callouts, including water-pump housing, inner cover, impeller, key, plate, gaskets and seals. Use the schedule to resolve the exact position and reference.

Does every listed part fit every Honda BF25–BF50 version?

No. The page heading identifies the figure, while individual rows can carry narrower model, serial, shaft or configuration distinctions.

How should I use the OEM number?

Use it as an identification cross-reference, then confirm the RECMAR reference, callout and row-level application information before ordering.

What should I check before selecting a Honda outboard part?

Check the complete model designation, serial details, assembly position, printed reference and any alternative shown on the selected schedule row.

What information should I send TMP Global for identification help?

Send the full model and serial, the water pump and impeller parts callout, the printed reference and clear photographs of the identification plate and removed part.