Water Pump Impeller – Fits Johnson/Evinrude 55-75 HP Outboards (Replaces 382547, 0382547, 0765431, 0777824)
Water Pump Impeller – Fits Johnson/Evinrude 55-75 HP Outboards (Replaces 382547, 0382547, 0765431, 0777824) 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 – Fits Johnson/Evinrude 55-75 HP Outboards (Rep...
Water Pump Impeller – Fits Johnson/Evinrude 55-75 HP Outboards (Replaces 382547, 0382547, 0765431, 0777824) is backordered and will ship as soon as it is back in stock.
Product Details
This is a direct replacement Water Pump Impeller – Fits Johnson/Evinrude 55-75 HP Outboards, designed for various 2-stroke, 2- and 3-cylinder motors manufactured between 1968 and 1978. It's constructed from durable neoprene with a brass hub to ensure reliable performance and longevity in marine environments.
It serves as a direct interchange for OEM parts 382547, 0382547, 0765431, and 0777824, as well as aftermarket equivalents from Sierra, GLM, Mallory, and others.
- Installs directly into the water pump housing.
- Neoprene construction is suitable for both freshwater and saltwater use.
- Features a robust brass insert hub for secure shaft engagement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude (OEM) | 382547 / 0382547 |
| Johnson/Evinrude (OEM) | 0765431 |
| Johnson/Evinrude (OEM) | 0777824 |
| Sierra | 18-3082 |
| GLM | 89940 |
| Mallory Marine | 9-45213 |
| CEF | 500307 |
| SEI Marine | 96-366-03AE |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Fits Johnson/Evinrude OMC BRP outboard motors from 55 HP to 75 HP (1968–1978).
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | OMC | 55 | 2-Stroke | 1968–1969 | 382547/0382547 | 2/3 Cylinders |
| Johnson/Evinrude | OMC | 60 | 2-Stroke | 1970–1971 | 382547/0382547 | 3 Cylinders |
| Johnson/Evinrude | OMC | 65 | 2-Stroke | 1972–1973 | 382547/0382547 | 3 Cylinders |
| Johnson/Evinrude | OMC | 70 | 2-Stroke | 1974–1978 | 382547/0382547 | 3 Cylinders |
| Johnson/Evinrude | OMC | 75 | 2-Stroke | 1975–1978 | 382547/0382547 | 3 Cylinders |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct replacement
- Housing Material
- Neoprene with brass hub
- Dimensions
- Overall diameter: 91.34 mm (3.6", 3 19/32")
Height/thickness: 25.3 mm (1")
Internal shaft/hub diameter: 19.21 mm (0.75", 3/4") - Weight
- Approximately 97-101 g (3.4-3.6 oz)
- Number of Blades
- 6
- Other Technical Attributes
- Brass insert hub construction
- Warranty
- 1 Year (varies by manufacturer)
What’s in the Box
- 1 x Water Pump Impeller (Replaces 382547/0382547)
Installation Notes
- Disconnect the battery and remove the engine cover.
- Drain the gearcase oil from the lower unit.
- Remove the bolts securing the lower unit (gearcase) to the upper driveshaft housing.
- Carefully lower and separate the gearcase from the engine.
- Unbolt and remove the water pump housing cover.
- Pry out the old impeller, noting the rotational direction of the existing blades.
- Clean the housing interior and inspect it for scoring or damage.
- Lightly grease the new impeller and the inside of the housing.
- Install the new impeller, ensuring the blades are oriented in the correct rotational direction.
- Reassemble the water pump housing, install a new gasket if needed, and reattach the gearcase.
- Refill the gearcase oil, reconnect the battery, and test the engine with a water supply.
Troubleshooting & FAQ
How do I know if this impeller is the right one for my motor?
This impeller fits specific Johnson/Evinrude models from 55 HP to 75 HP (1968-1978). The most reliable way to confirm fitment is to check your engine's model number and year against the compatibility table provided on this page. Also, compare our listed OEM and aftermarket part numbers with your existing part.
What are the signs of a failing water pump impeller?
Common signs include the engine overheating at idle or low speeds, a weak or non-existent "telltale" water stream, and a high engine temperature alarm. If you notice any of these symptoms, inspect the impeller immediately.
How often should I replace my outboard's impeller?
As a preventative maintenance item, it is recommended to replace the impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can be shorter if you frequently operate in sandy or debris-filled water.
Is this impeller resistant to saltwater?
Yes. The neoprene material is formulated to perform reliably in both freshwater and saltwater environments.
Does this listing include the water pump housing or gaskets?
No, this listing is for the impeller only. While this impeller is often included in complete water pump repair kits, this item is sold individually. Gaskets, wear plates, and housings must be purchased separately.
Why is my engine overheating even after replacing the impeller?
If overheating persists, check for other issues in the cooling system. This could include a clogged water intake, a bad thermostat, a blocked telltale outlet, or a worn-out water pump housing that is not sealing correctly against the new impeller.
What is the difference between an OEM and an aftermarket part?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. All parts are manufactured in an ISO 9002 facility and batch-inspected for quality and consistency.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free for most orders, and expedited options will appear at checkout if they are available for your location.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part before purchase. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement part, not an OEM component.
- Professional installation is highly recommended for safety and optimal performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions, typically arriving in 5–15 days.
- Manufacturer-Direct Value — Fair pricing on reliable parts without compromising on materials or quality control.
Payment & Security
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