Water Pump Impeller for Johnson/Evinrude 40–55 HP Outboards (Replaces 396809, 777214)
Water Pump Impeller for Johnson/Evinrude 40–55 HP Outboards (Replaces 396809, 777214) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Impeller for Johnson/Evinrude 40–55 HP Outboards (Replac...
Water Pump Impeller for Johnson/Evinrude 40–55 HP Outboards (Replaces 396809, 777214) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket water pump impeller is designed for selected Johnson/Evinrude outboards from 40 to 55 HP within the fitment ranges listed below. It replaces specified Evinrude/Johnson water pump impeller references and helps restore water circulation through the cooling system.
Use the exact engine model, horsepower, year, and existing impeller reference to confirm compatibility before ordering. This impeller is associated with Evinrude/Johnson references 396809, 0396809, 777214, 0777214, and 0777828.
- Replacement impeller for the water pump assembly.
- For applications using the corresponding impeller size and keyed driveshaft connection.
- Includes the drive key for installation.
Part Number Matrix
The references below are supplied as OEM or aftermarket cross-reference numbers. Cross-reference numbers should be confirmed against the engine model and original component before installation.
| Brand | Part Number | Notes |
|---|---|---|
| Johnson/Evinrude | 396809 / 0396809 | OEM reference |
| Johnson/Evinrude | 777214 / 0777214 | OEM reference |
| Johnson/Evinrude | 0777828 | OEM reference |
| Sierra | 18-3368 | Aftermarket interchange |
| CEF | 500346C | Aftermarket interchange |
| GLM | 89780 | Aftermarket reference for OEM 396809 |
| SEI Marine | 96-365-03 | Aftermarket interchange |
Engine & Model Compatibility
The company fitment record lists the following Johnson/Evinrude applications. Model-specific and serial-number conditions may apply, so verify the complete engine identification and water pump configuration before purchase.
| Brand | Model Description | Rated HP | Years | OEM Part References | Notes |
|---|---|---|---|---|---|
| Johnson/Evinrude | Outboard | 40 | 1986–1988 | 396809, 777214 | Confirm exact model and pump configuration |
| Johnson/Evinrude | Outboard | 45 | 1989 | 396809, 777214 | Confirm exact model and pump configuration |
| Johnson/Evinrude Commercial | Commercial outboard | 45 | 1986–1988 | 396809, 777214 | Confirm exact model and pump configuration |
| Johnson/Evinrude | Outboard | 48 | 1987–1988 | 396809, 777214 | Confirm exact model and pump configuration |
| Johnson/Evinrude | Outboard | 50 | 1986–1988 | 396809, 777214 | Confirm exact model and pump configuration |
| Johnson/Evinrude | Outboard | 55 | 1989 | 396809, 777214 | Confirm exact model and pump configuration |
| Johnson/Evinrude Commercial | Commercial outboard | 55 | 1986–1988 | 396809, 777214 | Confirm exact model and pump configuration |
Technical Specs
- Product Type
- Water pump impeller
- Application
- Selected Johnson/Evinrude outboard water pump assemblies
- Material
- Rubber impeller
- Outside Diameter
- 2.750 in. / approximately 69.85 mm
- Inside Diameter
- 0.625 in. / approximately 15.88 mm
- Drive
- Keyed driveshaft connection
- Drive Key
- Included
What’s in the Box
- 1 x Water pump impeller
- 1 x Drive key
Installation Notes
- Disconnect the battery and follow the service procedure for your specific outboard.
- Place a drain pan under the lower unit and remove the gear oil drain and fill screws if required by the service procedure.
- Remove the lower unit from the midsection of the outboard.
- If applicable, disconnect the shift linkage according to the engine service manual.
- Remove the water pump housing cover and take out the old impeller and drive key.
- Clean the impeller housing, wear plate, water pump components, and sealing surfaces.
- Install the supplied drive key in the driveshaft keyway.
- Install the new impeller in the correct rotational orientation. Use an appropriate lubricant or cooling-system installation lubricant as specified by the service manual.
- Reinstall the water pump housing and tighten its fasteners to the manufacturer’s specification.
- Reattach the lower unit, reconnect the shift linkage if removed, refill the gearcase lubricant, and verify water flow before normal operation.
Troubleshooting & FAQ
How do I confirm this impeller fits my specific engine?
Compare your engine brand, exact model, horsepower, and year with the compatibility table. Then compare the impeller reference from your existing part or service manual with the listed references, including 396809, 0396809, 777214, 0777214, or 0777828. The impeller dimensions and keyed-drive configuration should also match.
What are common signs of a failing water pump impeller?
Common symptoms include weak or intermittent water flow from the tell-tale outlet, an overheating alarm, steam from the exhaust, or no visible cooling-water discharge. Stop operating the engine if overheating occurs and inspect the cooling system.
How often should an outboard impeller be replaced?
Replacement intervals depend on engine use, storage, water conditions, and the manufacturer’s maintenance schedule. Replace the impeller when inspection shows wear, cracking, deformation, hardening, or reduced water flow, and follow the service interval for your specific engine.
Is the included drive key important?
Yes. The drive key locks the impeller to the driveshaft so the impeller rotates with the shaft and pumps cooling water. Confirm that the key is seated correctly before reinstalling the pump housing.
Can I install this impeller myself?
Installation requires removal and reinstallation of the lower unit and may require shift-linkage adjustment. DIY installation is possible for an experienced technician with the correct tools and service information, but professional installation is recommended if you are unfamiliar with outboard lower-unit service.
Is this an OEM part?
No. This listing is for an aftermarket replacement impeller. The listed OEM and aftermarket numbers are reference numbers used for compatibility identification.
Shipping speed and cost?
Shipping options, delivery estimates, and applicable costs are shown at checkout based on the destination and selected service.
Warranty and returns?
Warranty and return eligibility are subject to the applicable store policy. Contact customer support with your order details if you need assistance.
Safety & Important Information
- Verify the exact engine model, year, horsepower, and impeller reference before ordering.
- Confirm the original impeller dimensions and keyed-drive configuration before installation.
- This is an aftermarket replacement, not an OEM component.
- Do not operate an outboard with inadequate cooling-water flow or an overheating warning.
- Professional installation is recommended when lower-unit removal or shift-linkage adjustment is required.
About Sea Sierra
- Marine Replacement Parts — Practical replacement components for common outboard maintenance applications.
- Compatibility-Focused Listings — Product references and fitment details are provided to support accurate part selection.
- Customer Support — Contact us with your engine model and existing part information if you need help confirming application details.
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