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Water Pump Impeller – Fits Yamaha Outboards 100-250 HP (Replaces 6E5-44352-01-00)

Regular price $20.50

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Product Details

This Water Pump Impeller – Fits Yamaha Outboards 100-250 HP (Replaces 6E5-44352-01-00) is designed for a broad range of Yamaha engines. It is compatible with 2-Stroke V4/V6 models from 100 HP to 250 HP (1984–2002) and 4-Stroke models from 100 HP to 250 HP, including the F-series (F115, F150) and VF-series (SHO) engines.

This part serves as a direct replacement for Sierra 18-3071, GLM 89930, Mallory 9-45609, and Yamaha part numbers 6E5-44352-00-00, 6E5-44352-01-00, and 6E5-44352-03-00.

  • Installs as a direct replacement into the water pump housing.
  • Features a keyway mount that requires a Woodruff key for secure fitting.
  • Made from durable, high-quality rubber/neoprene for reliable performance in marine environments.

Part Number Matrix

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

Brand Part Number
Yamaha 6E5-44352-00-00
Yamaha 6E5-44352-01-00
Yamaha 6E5-44352-03-00
Sierra 18-3071
GLM 89930
Mallory 9-45609 / 9-45609-10

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This impeller fits a wide variety of Yamaha 2-stroke and 4-stroke outboard engines. Please verify your specific model and year range for an exact match.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 115, C115 115 2-Stroke Up to 1992 6E5-44352-01-00
Yamaha 115, C115, S115, S130 115–130 2-Stroke 1997 and later 6E5-44352-01-00
Yamaha 130 130 2-Stroke Up to 1992 6E5-44352-01-00
Yamaha 150, P150, 175, 200, 225 150–225 2-Stroke Up to 1991 6E5-44352-01-00
Yamaha 150-225, S150-S250, L150-L250 (series) 150–250 2-Stroke 1992–1996 6E5-44352-01-00
Yamaha S150, SX150, S200, SX200, S250, SX250 150–250 2-Stroke 1996–2002 6E5-44352-01-00
Yamaha V150-V250, VX150-VX250 150–250 2-Stroke 1996–2002 6E5-44352-01-00
Yamaha VZ150-VZ200 (2.6L) 150–200 2-Stroke 2001–2005 6E5-44352-01-00
Yamaha Z150-Z300 150–300 2-Stroke 2000–2005 6E5-44352-01-00
Yamaha VZ200-VZ300 (3.1L) 200–300 2-Stroke 2003–2009 6E5-44352-01-00
Yamaha 225, 250 225–250 2-Stroke 1992 and later 6E5-44352-01-00
Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F100B 100 4-Stroke 6E5-44352-01-00
Yamaha F115 (all variants) 115 4-Stroke 2000–2011 6E5-44352-01-00
Yamaha F115A, F115B 115 4-Stroke 2012 and later 6E5-44352-01-00
Yamaha F150 (all variants) 150 4-Stroke 2004–2022 6E5-44352-01-00
Yamaha F150C 150 4-Stroke 2017–2023 6E5-44352-01-00
Yamaha F175, F200 (2.8L) 175–200 4-Stroke 2006–2023 6E5-44352-01-00
Yamaha F200, F225 (3.3L V6) 200–225 4-Stroke 2002–2006 6E5-44352-01-00
Yamaha F225, F250 225–250 4-Stroke 2005–2023 6E5-44352-01-00
Yamaha VF115 115 4-Stroke 2015–2023 6E5-44352-01-00 SHO model
Yamaha VF150LA, VF150XA 150 4-Stroke 2013–2023 6E5-44352-01-00 SHO model
Yamaha VF175LA, VF175XA 175 4-Stroke 2015–2023 6E5-44352-01-00 SHO model
Yamaha VF200LA, VF225LA, VF250LA 200–250 4-Stroke 2009–2023 6E5-44352-01-00 SHO models

Technical Specs

Product Type
Water Pump Impeller
Installation
Direct Replacement
Connection
Keyway Mount (requires Woodruff key)
Housing Material
Rubber/Neoprene
Housing Color
Black
Fitting Type
Drive Shaft Keyway
Other Technical Attributes
Replaces 6E5-44352 impeller series; Used with water pump kit assemblies

What’s in the Box

  • 1 x Water Pump Impeller (6E5-44352-01-00)

Installation Notes

  1. Disconnect the battery and remove the engine cover. Unbolt and carefully lower the gearcase (lower unit) from the outboard leg.
  2. Locate the water pump housing on top of the gearcase. Remove the bolts securing the housing cover.
  3. Take note of the rotational direction of the old impeller's vanes before removing it. This is critical for correct installation.
  4. Slide the old impeller off the driveshaft. Clean any debris from the housing interior and wear plate.
  5. Apply a light coat of marine grease to the new impeller and housing interior. Align the Woodruff key and slide the new impeller onto the driveshaft.
  6. Rotate the driveshaft in its normal direction of operation while pushing down on the housing cover to correctly seat the impeller vanes.
  7. Re-install the housing cover, re-attach the lower unit, and test the engine with a water supply to ensure proper cooling system function.

Troubleshooting & FAQ

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

This impeller fits a wide range of Yamaha 100-250 HP models. The best way to confirm fit is to check the "Engine & Model Compatibility" tables on this page against your engine's model number and year. You can also cross-reference 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, or a high temperature alarm. Brittle, cracked, or missing vanes on the old impeller upon inspection are definitive signs it needs replacement.

How often should I replace my outboard's impeller?

For preventative maintenance, it's recommended to replace the impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. Usage in saltwater or sandy/silty conditions may require more frequent changes.

Do I need a Woodruff key for installation?

Yes, this impeller uses a keyway mount and requires a Woodruff key to lock it to the driveshaft. The key is typically sold separately or included in a full water pump repair kit.

Is this impeller compatible with both 2-stroke and 4-stroke engines?

Yes, as shown in the compatibility tables, this specific part number (6E5-44352-01-00) is used across a wide variety of both Yamaha 2-stroke and 4-stroke outboards from 100 HP to 250 HP.

Can I use this impeller in saltwater?

Absolutely. It is constructed from marine-grade neoprene/rubber materials designed to resist corrosion and degradation from saltwater, fuel, and heat.

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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