Water Pump Impeller for Evinrude/Johnson 9.9–15 HP 2-Stroke Outboards, 1974–2006 – Replaces 0386084, 0777817, 386084, 777817
Water Pump Impeller for Evinrude/Johnson 9.9–15 HP 2-Stroke Outboards, 1974–2006 – Replaces 0386084, 0777817, 386084, 777817 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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Water Pump Impeller for Evinrude/Johnson 9.9–15 HP 2-Stroke Outboar...
Water Pump Impeller for Evinrude/Johnson 9.9–15 HP 2-Stroke Outboards, 1974–2006 – Replaces 0386084, 0777817, 386084, 777817 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket water pump impeller is designed for specified Evinrude and Johnson 2-stroke outboard motors rated at 9.9 HP and 15 HP from 1974 through 2006. It is supplied as a single replacement impeller for routine water-pump maintenance or repair.
The impeller is listed for replacement of Evinrude, Johnson, OMC, and BRP Marine references 0386084, 0777817, 386084, and 777817. Listed aftermarket cross-references include Mallory Marine 9-45201, Sierra Marine 18-3050, GLM Marine 89770, and SEI Marine 96-361-03A or 96-361-03AE.
- Replacement water pump impeller for specified Evinrude and Johnson outboards.
- Single impeller, not a complete water-pump repair kit.
- Designed for the applications and reference numbers listed on this page.
Part Number Matrix
Use the following references to compare the replacement impeller with your existing part and engine documentation.
| Brand or Manufacturer | Part Number | Reference Type |
|---|---|---|
| Evinrude / Johnson / OMC / BRP Marine | 0386084 | OEM reference |
| Evinrude / Johnson / OMC / BRP Marine | 0777817 | OEM reference |
| Evinrude / Johnson / OMC / BRP Marine | 386084 | OEM reference |
| Evinrude / Johnson / OMC / BRP Marine | 777817 | OEM reference |
| Mallory Marine | 9-45201 | Aftermarket cross-reference |
| Sierra Marine | 18-3050 | Aftermarket cross-reference |
| GLM Marine | 89770 | Aftermarket cross-reference |
| SEI Marine | 96-361-03A, 96-361-03AE | Aftermarket cross-reference |
Engine & Model Compatibility
Compatibility is limited to the specified Evinrude and Johnson 2-stroke outboard applications below. Confirm the exact model, year, serial range, and existing impeller reference before ordering.
| Brand | Engine Type | Rated HP | Stroke | Years | OEM References |
|---|---|---|---|---|---|
| Evinrude | Outboard | 9.9 HP | 2-Stroke | 1974–2006 | 0386084, 0777817, 386084, 777817 |
| Evinrude | Outboard | 15 HP | 2-Stroke | 1974–2006 | 0386084, 0777817, 386084, 777817 |
| Johnson | Outboard | 9.9 HP | 2-Stroke | 1974–2006 | 0386084, 0777817, 386084, 777817 |
| Johnson | Outboard | 15 HP | 2-Stroke | 1974–2006 | 0386084, 0777817, 386084, 777817 |
Technical Specs
- Product Type
- Water pump impeller
- Product Configuration
- Single replacement impeller
- Application
- Specified Evinrude and Johnson outboard motors
- Engine Stroke
- 2-Stroke
- Rated Horsepower
- 9.9 HP and 15 HP
- Application Years
- 1974–2006
- Replacement References
- 0386084, 0777817, 386084, 777817
What’s in the Box
- 1 x Water pump impeller
The package does not include a complete water-pump repair kit, housing, wear plate, or separately listed installation hardware unless specifically stated by the selected order.
Installation Notes
- Confirm the engine model, year, serial information, stroke, horsepower, and existing impeller reference before beginning work.
- Disconnect the battery and follow the outboard manufacturer’s safety procedures.
- Place the engine in the position recommended by the service manual and remove the lower unit according to the manufacturer’s instructions.
- Remove the water-pump housing and old impeller. Note the original blade orientation and inspect the housing, wear plate, key, and related components.
- Clean the pump area and install the replacement impeller in the correct orientation. Replace damaged related components before reassembly.
- Reinstall the water-pump housing and lower unit using the manufacturer’s specified tightening sequence and torque values.
- Test the cooling-water flow in accordance with the service manual. Stop operation immediately if the engine overheats or the tell-tale flow is abnormal.
Professional installation is recommended if you are not experienced with outboard lower-unit or water-pump service.
Troubleshooting & FAQ
How do I know if this impeller fits my motor?
Verify that your motor is an Evinrude or Johnson 2-stroke outboard rated at 9.9 HP or 15 HP and within the listed 1974–2006 application range. Also compare your existing reference number with the OEM and aftermarket references on this page. Exact model, year, serial, and water-pump configuration should be confirmed before installation.
Is this impeller for 2-stroke or 4-stroke engines?
This listing is for the specified Evinrude and Johnson 2-stroke applications. Do not use the page’s fitment information to confirm a 4-stroke application.
Does this product include a key or complete repair kit?
No. This product is listed as one replacement water-pump impeller. A key, housing, wear plate, gaskets, and other water-pump components are not included unless separately stated in your order details.
What are common signs of a worn water-pump impeller?
Common signs include weak or interrupted tell-tale flow, overheating, and visible cracking, brittleness, distortion, or missing blades on the removed impeller. Inspect the complete water-pump assembly when replacing the impeller.
How often should a water-pump impeller be replaced?
Replacement intervals depend on engine use, storage, water conditions, and the manufacturer’s maintenance schedule. Inspect and replace the impeller according to the applicable service manual and whenever wear or damage is found.
Is this an OEM part?
This listing is for an aftermarket replacement impeller. The OEM and aftermarket numbers shown are reference numbers used for identification and compatibility comparison; the product is not represented as an original branded OEM part.
Safety & Important Information
- Confirm the exact engine model, year, serial information, stroke, horsepower, and impeller reference before purchasing.
- Do not rely on horsepower alone to determine fitment; water-pump designs can vary by model and production year.
- Compare the replacement with the original part before installation. Do not install the part if the dimensions, hub, blade configuration, or fit differ.
- Follow the manufacturer’s service manual for lower-unit removal, torque values, lubrication, and testing procedures.
- This is an aftermarket replacement component, not an original equipment manufacturer part.
About Sea Sierra
- Marine Replacement Parts — We provide replacement components for maintenance and repair of marine systems.
- Application-Focused Listings — Product pages identify supported engine types, horsepower, stroke, years, and reference numbers where available.
- Fitment Verification — Always compare the listed application details with your engine identification plate and service documentation before ordering.
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