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Water Pump Impeller – Fits Yamaha 75-100HP 4-Stroke Outboards (Replaces 67F-44352-00-00)

Sale price $32.99 Regular price $52.00
Shipping calculated at checkout.

Water Pump Impeller – Fits Yamaha 75-100HP 4-Stroke Outboards (Replaces 67F-44352-00-00) 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 – Fits Yamaha 75-100HP 4-Stroke Outboards (Replaces 67F-44352-00-00) is engineered for Yamaha 4-Stroke 75–100 HP outboard motors from 1999–2005, including F75, F80, F90, and F100 engines and their Jet Drive variants.

It serves as a direct interchange for Yamaha part numbers 67F-44352-00-00 and 67F-44352-01-00, as well as aftermarket references from Sierra (18-3042), CEF (500364), and Mallory (9-45612).

  • Engineered for direct replacement and easy installation.
  • Constructed from durable rubber/neoprene housing material.
  • Includes a key, which may be required for some aftermarket replacements.

Part Number Matrix

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

Brand Part Number
Yamaha 67F-44352-00-00
Yamaha 67F-44352-01-00
Sierra 18-3042
CEF 500364
Mallory 9-45612

Engine & Model Compatibility

Confirm your engine model and year in the table below to ensure correct fitment.

Brand Model Rated HP Stroke Years OEM Part No.
Yamaha F75 75 4-Stroke 2003–2005 67F-44352-00-00
Yamaha F80 80 4-Stroke 1999–2003 67F-44352-00-00
Yamaha F80 Jet Drive 80 4-Stroke 2001–2002 67F-44352-00-00
Yamaha F90 90 4-Stroke 2003–2005 67F-44352-00-00
Yamaha F90 Jet Drive 90 4-Stroke 2003–2004 67F-44352-00-00
Yamaha F100 100 4-Stroke 1999–2002 67F-44352-00-00

Technical Specs

Product Type
Water Pump Impeller
Installation
Direct replacement
Fuel Type
Gasoline
Dimensions
Height: 34.76 mm, External Diameter: 58.11 mm, Internal Shaft Diameter: 19.76 mm
Housing Material
Rubber/Neoprene
Other Technical Attributes
Includes key (on some aftermarket replacements)

What’s in the Box

  • 1 x Impeller (Replaces 67F-44352-00-00)
  • 1 x Key (included with some aftermarket replacements)

Installation Notes

  1. Disconnect the battery and remove the engine cover. Locate and remove the lower unit (gearcase) by unbolting it from the engine's midsection.
  2. Place the lower unit on a suitable workbench. Remove the bolts securing the water pump housing cover to access the impeller.
  3. Inspect the housing and wear plate for scoring, warping, or corrosion. Clean all surfaces thoroughly.
  4. Remove the old impeller, noting the rotational direction of the fins. Install the new impeller, applying a light coat of marine grease to the housing interior and rotating the driveshaft to seat the fins correctly.
  5. Reassemble the water pump housing, ensuring all seals and gaskets are correctly positioned. Reinstall the lower unit, making sure the water tube and shift shaft are properly aligned.

Troubleshooting & FAQ

How do I know if this impeller fits my Yamaha outboard?

This impeller is designed for specific Yamaha 4-stroke models from 75HP to 100HP, manufactured between 1999 and 2005. The best way to confirm fitment is to check your engine's model and year against the "Engine & Model Compatibility" table on this page. You can also verify by cross-referencing your existing part number with those in the "Part Number Matrix."

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 from the engine, or a high engine temperature alarm. Visually, a worn impeller may have cracked, brittle, or broken fins.

How often should I replace my outboard's impeller?

For preventative maintenance, it is recommended to replace the impeller every one to two years, or every 100-200 hours of operation, depending on usage conditions. If you frequently operate in sandy or silty water, more frequent inspections and replacements are advised.

Is the key included with this impeller?

Yes, a key is included. While not all OEM packages include one, our aftermarket kit provides it to ensure you have all necessary components for replacement, as it is a critical part of the assembly.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). It has been built to OEM-level specifications with comparable materials. All our parts are manufactured in an ISO 9002 facility and are batch-inspected for consistency and quality.

Shipping speed & cost?

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

Warranty & returns?

This product is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its 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 component, not an OEM part.
  • 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 rigorously tested for real-world conditions.
  • Fast Global Fulfillment — We offer free standard delivery to most regions, with typical transit times of 5–15 days.
  • Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.

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