Water Pump Impeller – Fits Johnson Evinrude 20–35 HP (Replaces 395289, 395265, 777818)

$12.99

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Water Pump Impeller – Fits Johnson Evinrude 20–35 HP (Replaces 395289, 395265, 777818) is backordered and will ship as soon as it is back in stock.

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Product Details

This Water Pump Impeller – Fits Johnson Evinrude 20–35 HP Outboards (Replaces 395289, 395265) is designed for a wide range of Johnson and Evinrude 2-stroke outboard motors manufactured from 1974 to 2005. It is compatible with 14–35 HP models, including 2-cylinder Crossflow (20–35 HP) and 3-cylinder Loopcharged (25–35 HP, 1996–2001) engines, ensuring reliable cooling performance.

This part serves as a direct replacement for multiple OEM and aftermarket part numbers, including Johnson/Evinrude 395289, 395265, 777818, Sierra 18-3051, GLM 89750, Mallory 9-45200, and CEF 500370C.

Installs as a direct OEM-equivalent replacement.
Constructed from durable neoprene rubber with a solid brass insert for longevity.
Requires an impeller key for installation, which may be included depending on the kit.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand	Part Number
Johnson/Evinrude	395289 / 0395289
Johnson/Evinrude	395265 / 0395265
Johnson/Evinrude	777818 / 0777818
Sierra	18-3051
GLM	89750
Mallory	9-45200
CEF	500370C

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Johnson/Evinrude models, this impeller fits a variety of 2-stroke outboards from 14 HP to 35 HP built between 1974 and 2005.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Johnson/Evinrude	All Models	14	2-Stroke	1974–2005	395289/395265
Johnson/Evinrude	All Models	20	2-Stroke	1974–2005	395289/395265
Johnson/Evinrude	All Models	25	2-Stroke	1974–2005	395289/395265	Crossflow models
Johnson/Evinrude	All Models	28	2-Stroke	1974–2005	395289/395265	Crossflow models
Johnson/Evinrude	All Models	30	2-Stroke	1974–2005	395289/395265	Crossflow models
Johnson/Evinrude	All Models	35	2-Stroke	1974–2005	395289/395265	Including 3-cyl loopcharged (1996–2001)

Technical Specs

Product Type: Water Pump Impeller
Installation: Direct OEM replacement
Housing Material: Neoprene Rubber with Brass Insert
Housing Color: Black
Dimensions: External Diameter: 51 mm (2.0 in), Internal Diameter: 16 mm (0.63 in), Height: 19 mm (0.75 in)
Number of Blades: 6
Weight: 37 g (0.08 lb)
Warranty: 1 Year (varies by distributor)
Other Technical Attributes: Requires impeller key (often included in service kits, may be sold separately)

What’s in the Box

1 x Water Pump Impeller (395289/0395289)
1 x Impeller Key (330619/344470/777845) - *Included in some kits but not all*

Installation Notes

A typical installation process involves these general steps:

Disconnect the spark plug wires and shift the outboard into neutral.
Remove the lower unit (gearcase) by unbolting it from the engine’s midsection.
Unbolt and lift the water pump housing to expose the old impeller.
Note the direction of the old impeller blades before removing it from the driveshaft.
Clean any debris or corrosion from the pump housing, wear plate, and driveshaft.
Install the new impeller key into the slot on the driveshaft.
Slide the new impeller onto the shaft, rotating it clockwise to bend the blades correctly as you lower the pump housing over it.
Tighten the housing bolts to the manufacturer's specified torque.
Reinstall the lower unit, ensuring the driveshaft and shift shaft are properly aligned.
Reconnect the spark plug wires and test the engine with a water supply, checking for a strong tell-tale stream.

Troubleshooting & FAQ

How do I confirm this impeller is the right one for my motor?

First, check the compatibility tables on this page. This impeller is for Johnson/Evinrude 14–35 HP outboards (1974–2005). The surest way to confirm fitment is to match your old part number to one of the cross-references listed in our Part Number Matrix.

What are the signs of a bad water pump impeller?

Common symptoms include the engine overheating at idle or low speeds, a weak or inconsistent water stream from the "tell-tale" outlet, or a complete lack of water flow. Upon inspection, a failed impeller may appear brittle, cracked, have missing blades, or be permanently deformed.

How often should I replace the impeller?

For preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1 to 2 years, or every 100-200 hours of operation. Service intervals should be shorter if operating in saltwater, silt, or sandy conditions.

Is this a complete water pump kit?

No, this listing is for the water pump impeller and, in some cases, an impeller key. It does not include the water pump housing, wear plate, gaskets, or seals, which are sold separately or as part of a complete water pump repair kit.

The description says a key is included but might not be. Which is it?

Our supply varies by batch and distributor. While many kits include the impeller key (part numbers 330619, 344470, 777845), we cannot guarantee it. We recommend having a spare key on hand or verifying with your seller if it is critical for your repair.

Is there a "correct" direction for the impeller blades?

Yes. The blades should curve backward from the direction of driveshaft rotation. When you install the pump housing, turn the driveshaft in its normal operating direction (usually clockwise) to fold the blades into the correct orientation without damaging them.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
This is an aftermarket replacement, not an OEM component.
Professional installation is recommended for safety and performance.

About Sea Sierra

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