SKU: 96828139471

Water Pump Impeller Repair Kit – Fits Johnson/Evinrude 25-35 HP (Replaces 389611/0389611)

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Description

Water Pump Impeller Repair Kit – Fits Johnson/Evinrude 25-35 HP (Replaces 389611/0389611)Water Pump Impeller Repair Kit Fits Johnson Evinrude 25 35 HP (Replaces 389611 0389611) This comprehensive water pump repair kit is designed for Johnson Evinrude 2 Stroke 25 HP (19771983) and 35 HP (19761980) outboard motors. It provides a reliable solution for maintaining your engines cooling system for optimal performance. This kit serves as a direct replacement for Johnson Evinrude OEM part numbers 389611 0389611 and equivalent aftermarket parts

Water Pump Impeller Repair Kit – Fits Johnson/Evinrude 25-35 HP (Replaces 389611/0389611)

This comprehensive water pump repair kit is designed for Johnson/Evinrude 2-Stroke 25 HP (1977–1983) and 35 HP (1976–1980) outboard motors. It provides a reliable solution for maintaining your engine’s cooling system for optimal performance.

This kit serves as a direct replacement for Johnson/Evinrude OEM part numbers 389611 / 0389611 and equivalent aftermarket parts from Sierra and other brands, ensuring a precise fit and function.

  • Engine placement is in the lower unit.
  • Features a durable, saltwater-resistant neoprene impeller for longevity.
  • Includes all necessary components for a complete rebuild, including the housing, pump, gasket, and bolts.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number Notes
Johnson/Evinrude 389611 / 0389611 Complete Kit
Sierra 18-3363 Housing Only
Sierra 18-3358 Pump Only
Sierra 18-3360 Gasket Only
Sierra 18-3329 Grommet Only
Sierra 18-3133 Bolts Only

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson Serial Number Guide.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Johnson/Evinrude Various 25 HP 2-Stroke 1977–1983 389611/0389611 -
Johnson/Evinrude Various 35 HP 2-Stroke 1976–1980 389611/0389611 -

Technical Specifications

Specification Value
Product Type Water Pump Repair/Rebuild Kit
Installation Engine Lower Unit
Housing Material Composite
Connection Direct OEM Fit
Other Technical Attributes Saltwater-resistant neoprene impeller

Package Contents

  • 1 x Impeller with Pin
  • 1 x Housing (Replaces 330560 / Sierra 18-3363)
  • 1 x Pump (Replaces 328751 / Sierra 18-3358)
  • 1 x Gasket (Replaces 329390 / Sierra 18-3360)
  • 1 x Grommet (Replaces 302497 / Sierra 18-3329)
  • 4 x Bolts (Replaces 331979 / Sierra 18-3133)

Installation Guide

  1. Safety First: Disconnect the battery and shift the outboard to neutral.
  2. Access the Pump: Remove the lower unit (gearcase) from the outboard's driveshaft housing assembly.
  3. Remove Old Pump: Unbolt and remove the existing water pump housing to access the impeller. Note the orientation of the old parts.
  4. Clean Surfaces: Thoroughly clean the mounting base and driveshaft, removing any old gasket material or debris.
  5. Install New Components: Place the new gasket and pump plate onto the gearcase.
  6. Install Impeller: Slide the new impeller onto the driveshaft. Apply a light coat of marine grease to the inside of the pump housing to ease installation.
  7. Install Housing: Press the new pump housing down over the impeller while turning the driveshaft clockwise to set the vanes correctly.
  8. Secure Housing: Fasten the housing with the new bolts, tightening them evenly to the manufacturer's torque specifications.
  9. Reassemble: Reinstall the lower unit, refill the gearcase with fresh lubricant, and reconnect the battery.
  10. Test Operation: Start the engine in water and verify a strong, consistent stream of water from the tell-tale outlet.

Troubleshooting & FAQ

How do I confirm this kit will fit my Johnson engine?
Verify that your engine is a 2-stroke 25 HP (manufactured between 1977–1983) or a 35 HP (1976–1980). The most reliable method is to cross-reference the OEM part number, which should be 389611 or 0389611.

What are the signs my water pump needs replacing?
The most common signs are engine overheating, an intermittent or weak water stream from the "tell-tale" cooling outlet, or discovering the impeller is cracked, brittle, or has broken vanes during a routine inspection.

How often should I replace the water pump impeller?
For preventative maintenance, we recommend inspecting the impeller annually and replacing it every 1-2 years. Replacement frequency should increase with heavy use, especially in saltwater or in water with high levels of sand or silt.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 96828139471

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Doctor Jane
Waukegan, US
★★★★★ 5
Worked as expected, lots of USB ports.
Just used on my trip to Paris, worked well and I liked having so many USB ports. The long cord was great because my hotel was rather vintage and the outlets weren't in convenient places. Glad to see it will also work for my next trip. I appreciated that it came with adapters for the US also so I could test it at home before I left.
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Reviewed in the United States on September 28, 2025
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cjcshop
Whiting, US
★★★★★ 5
Perfect for travel!
These "extension cord" power adapters were perfect for us during a recent trip to Europe! They come with multiple adapters so that you can use the adapter in several countries. Best of all, one of the adapters is for North America, so we can still use them at home! Each adapter has three 3-prong plug sockets (meaning you can use either 2-prong or 3-prong plugs), one of which is set slightly apart from the other two to accommodate a larger plug. Each has four USB ports, plus one USB-C port. Plus, it has a 5-foot extension cord, so you can reach that one socket that never seems to be where you actually need it to be! That made it perfect to be able to set the adapter on the bedside table and charge all of our devices at once, but still keep our phones close at hand for checking time, setting alarms, etc. With all of that in one little box, we were able to eliminate the bag-full of various adapters we've had to pack for past trips. Definitely recommend these for your travel needs!
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Reviewed in the United States on May 22, 2024
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Karen M.
Whiting, US
★★★★★ 5
Prefect for our trip.
Color: Muted Pink+Lilac, Size: Large
I bought this travel holder because of the strap that I can fit around my neck. The rings and clasps are metal. There are two rings on the back side to hook the strap to which I really like because less tension on the neck. There was plenty of room to fit our passports with protective covers into the slots on the right. I adjusted the strap long enough that it still lets me easily un-zip the holder while keeping it securely around my neck. No worries about accidentally leaving it somewhere. Only time can tell how much it will hold up to ware and tare. Feels and seems it will hold up.
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Reviewed in the United States on April 3, 2026
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Joy
Grantham, US
★★★★★ 5
From travel chaos to an efficient and methodical process
Color: Haze Blue+Dusty Blue, Size: Large
This organizer was meticulously developed for holding passports, IDs, credit cards, money, tickets, ink pen, car key, and etc. in a compact, convenient, and orderly manner. I also placed Lysol wipes in the exterior front pocket and zipped my cell phone into the exterior back pocket. It is easy to open and retrieve the items needed for every step of my travels. No more digging for travel essentials in a variety of zipped pockets. Travel chaos is now an efficient and methodical process.
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Reviewed in the United States on February 19, 2026
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RONALD O. NCCA
Grantham, US
★★★★★ 5
Exelente.
Color: Gunmetal Grey, Size: Large
Exelente producto estoy muy conforme.
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Reviewed in the United States on May 5, 2026

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