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Water Pump Impeller – Fits Johnson/Evinrude 85-235 HP (Replaces 385528, 389642, 777212)

Regular price $17.99
Shipping calculated at checkout.

Water Pump Impeller – Fits Johnson/Evinrude 85-235 HP (Replaces 385528, 389642, 777212) is backordered and will ship as soon as it is back in stock.


Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This aftermarket Water Pump Impeller is designed for Johnson/Evinrude 85-235 HP V4/V6 outboard engines from 1973–1978. It serves as a direct-fit replacement, ensuring your engine's cooling system operates effectively to prevent overheating and maintain performance.

It directly replaces Johnson/Evinrude part numbers 0385528, 0389642, and 0777212, and is interchangeable with Sierra 18-3043, GLM Marine 89680, Mallory Marine 9-45203, SEI Marine 96-399-07E, and CEF 500305.

  • Engineered for direct OEM-level fit and function.
  • Constructed from durable rubber to withstand the marine environment.
  • Features a keyed drive shaft connection for secure installation.

Part Number Matrix

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

Brand Part Number Notes
Johnson/Evinrude 0777212 Supersedes 0389642 and 0385528
Johnson/Evinrude 0389642 Superseded by 0777212
Johnson/Evinrude 0385528 Superseded by 0389642
Sierra 18-3043
GLM Marine 89680
Mallory Marine 9-45203
SEI Marine 96-399-07E
CEF 500305

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This part is verified to fit the following Johnson and Evinrude models.

Brand Model Rated HP Stroke Years OEM Part No.
Evinrude 85393M 85 2-Stroke 1973 0385528/0389642/0777212
Evinrude 85493B 85 2-Stroke 1974 0385528/0389642/0777212
Evinrude 85593E 85 2-Stroke 1975 0385528/0389642/0777212
Evinrude 85693D, 85693G, 85699G 85 2-Stroke 1976 0385528/0389642/0777212
Evinrude 85790S, 85793S, 85799S 85 2-Stroke 1977 0385528/0389642/0777212
Evinrude 115393M 115 2-Stroke 1973 0385528/0389642/0777212
Evinrude 115493B 115 2-Stroke 1974 0385528/0389642/0777212
Evinrude 115593 115 2-Stroke 1975 0385528/0389642/0777212
Evinrude 115693D, 115693G, 115699D, 115699G 115 2-Stroke 1976 0385528/0389642/0777212
Evinrude 115790S, 115793S, 115799S 115 2-Stroke 1977 0385528/0389642/0777212
Evinrude 135383M 135 2-Stroke 1973 0385528/0389642/0777212
Evinrude 135443B, 135483B, 135489B 135 2-Stroke 1974 0385528/0389642/0777212
Evinrude 135543E, 135583E, 135589E 135 2-Stroke 1975 0385528/0389642/0777212
Evinrude 140740S, 140743S, 140783S 140 2-Stroke 1977 0385528/0389642/0777212
Evinrude 150840S, 150849S 150 2-Stroke 1978 0385528/0389642/0777212
Evinrude 150940C, 150949C 150 2-Stroke 1979 0385528/0389642/0777212
Evinrude 175740S, 175749S 175 2-Stroke 1977 0385528/0389642/0777212
Evinrude 175840C, 175840S 175 2-Stroke 1978 0385528/0389642/0777212
Evinrude 175940R, 175949R 175 2-Stroke 1979 0385528/0389642/0777212
Evinrude 200640S, 200649S 200 2-Stroke 1976 0385528/0389642/0777212
Evinrude 200740C, 200749C 200 2-Stroke 1977 0385528/0389642/0777212
Evinrude 200840R, 200849R 200 2-Stroke 1978 0385528/0389642/0777212
Evinrude 200490A, 200940A, 200949A 200 2-Stroke 1979 0385528/0389642/0777212
Evinrude 235840R, 235849R 235 2-Stroke 1978 0385528/0389642/0777212
Evinrude 235940A, 235949A 235 2-Stroke 1979 0385528/0389642/0777212
Johnson 85ESL73M 85 2-Stroke 1973 0385528/0389642/0777212
Johnson 85ESL74B 85 2-Stroke 1974 0385528/0389642/0777212
Johnson 85ESL75E 85 2-Stroke 1975 0385528/0389642/0777212
Johnson 85EL76D, 85EL76G, 85ETLR76D, 85ETLR76G 85 2-Stroke 1976 0385528/0389642/0777212
Johnson 85EL77S, 85ETLR77S, 85TXLR77S 85 2-Stroke 1977 0385528/0389642/0777212
Johnson 85ETLR78C, 85ML78C, 85TXLR78C 85 2-Stroke 1978 0385528/0389642/0777212
Johnson 115ESL73M 115 2-Stroke 1973 0385528/0389642/0777212
Johnson 115ESL74B, 115ETL74B 115 2-Stroke 1974 0385528/0389642/0777212
Johnson 115ESL75E, 115ETL75E 115 2-Stroke 1975 0385528/0389642/0777212
Johnson 115EL77S, 115ETL77, 115TXL77S 115 2-Stroke 1977 0385528/0389642/0777212
Johnson 115ETZ78C, 115ML78C, 115TXL78C 115 2-Stroke 1978 0385528/0389642/0777212
Johnson 135ESL73M 135 2-Stroke 1973 0385528/0389642/0777212
Johnson 135ESL74B, 135ETL74B 135 2-Stroke 1974 0385528/0389642/0777212
Johnson 140ML77S, 140TL77S, 140TXL77S 140 2-Stroke 1977 0385528/0389642/0777212
Johnson 140ML78C, 140TL78C, 140TX78C 140 2-Stroke 1978 0385528/0389642/0777212
Johnson 150TL78S, 150TXL78S 150 2-Stroke 1978 0385528/0389642/0777212
Johnson 175TL77S, 175TXL77S 175 2-Stroke 1977 0385528/0389642/0777212
Johnson 175TL78C, 175TX78C 175 2-Stroke 1978 0385528/0389642/0777212
Johnson 200TL76S, 200TXL76S 200 2-Stroke 1976 0385528/0389642/0777212
Johnson 200TL77C, 200TXL77C 200 2-Stroke 1977 0385528/0389642/0777212
Johnson 200TL78R, 200TX78R 200 2-Stroke 1978 0385528/0389642/0777212
Johnson 235TL78R, 235TX78R 235 2-Stroke 1978 0385528/0389642/0777212

Technical Specs

Product Type
Water Pump Impeller
Installation
Direct OEM replacement
Material
Rubber
Connection
Keyed drive shaft
Weight
0.19 kg (0.42 lb)

What’s in the Box

  • 1 x Water Pump Impeller (0385528/0389642/0777212)

Installation Notes

  1. Disconnect the negative battery cable for safety.
  2. Drain the gearcase oil from the lower unit.
  3. Remove the bolts securing the lower unit (gearcase) to the engine's midsection.
  4. Carefully detach the lower unit, watching for the shift shaft linkage.
  5. Unbolt and remove the water pump housing cover.
  6. Pry or pull the old impeller off the driveshaft, nothing its blade orientation.
  7. Thoroughly clean the impeller housing, wear plate, and all sealing surfaces.
  8. Lightly grease the new impeller and housing interior. Slide the new impeller onto the driveshaft while turning the shaft clockwise to seat the blades correctly.
  9. Reinstall the water pump housing and torque its bolts to manufacturer specs.
  10. Reattach the lower unit, ensuring the driveshaft, water tube, and shift shaft align properly.
  11. Refill the gearcase with fresh marine gear oil.
  12. Reconnect the battery and test the engine in the water, verifying a strong tell-tale stream.

Troubleshooting & FAQ

How do I know if my impeller is bad?

The most common signs are a weak or non-existent water stream from the "tell-tale" outlet, engine overheating alarms, and a dry, cracked, or brittle appearance on the impeller blades during inspection. We recommend replacing the impeller every 1-2 years as preventive maintenance.

Will this fit my engine if it's not on the compatibility list?

If your exact engine model and year are not in the compatibility table, do not purchase this part. To ensure a correct fit, you must cross-reference your engine's original part number with those provided in our Part Number Matrix.

What causes an impeller to fail prematurely?

The most common causes of early failure are running the outboard dry (even for a few seconds), operating in very sandy or debris-heavy water, and incorrect installation that might tear or improperly seat the blades.

Are gaskets, seals, or a keyway included?

This product includes only the impeller as shown in the photos. Gaskets, housing, wear plates, and the drive key are sold separately or as part of a complete water pump kit.

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

  • 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 in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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