• Fast shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Welcome Aboard!

FLASHSALE26

Water Pump Impeller – Fits Yamaha F225/F250/F300 4.2L V6 Outboards (Replaces 6CE-44352-00-00)

Regular price $16.50

Worry-free returns

Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.


If the return is due to our error or a defective item, we’ll make it right.


Please contact us before returning any item.

Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

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 is a direct-replacement Water Pump Impeller – Fits Yamaha F225/F250/F300 4.2L V6 Outboards (Replaces 6CE-44352-00-00), specifically designed for Yamaha 4-Stroke 225–300 HP 4.2L V6 models from 2010 to present. It ensures your engine's cooling system operates efficiently, preventing overheating and maintaining performance.

This impeller is a direct interchange for Yamaha 6CE-44352-00-00, Quicksilver 8M6010334, and Sierra 18-45617.

  • Engineered for direct-fit installation, simplifying replacement.
  • Constructed from a durable blend of neoprene and plastic to withstand the marine environment.
  • Installation requires a wood drift key, which is typically included in full OEM replacement kits.

Part Number Matrix

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

Brand Part Number
Yamaha 6CE-44352-00-00
Quicksilver 8M6010334
Sierra 18-45617
OMCEF Marine 6CE-44352-00
Forestity 6CE-44352-00

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No.
Yamaha F225NCA 225 4-Stroke 2014–2016 6CE-44352-00-00
Yamaha F225XB 225 4-Stroke 2016 6CE-44352-00-00
Yamaha F225XCA 225 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha F250DET1X 250 4-Stroke 2010 6CE-44352-00-00
Yamaha F250NCA 250 4-Stroke 2014–2016 6CE-44352-00-00
Yamaha F250UCA 250 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha F250XB 250 4-Stroke 2016 6CE-44352-00-00
Yamaha F250XCA 250 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha F300BET1U 300 4-Stroke 2010 6CE-44352-00-00
Yamaha F300BETU/BETX 300 4-Stroke 2016 6CE-44352-00-00
Yamaha F300NCA 300 4-Stroke 2014–2016 6CE-44352-00-00
Yamaha F300UCA 300 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha F300XCA 300 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha FL250DET1X 250 4-Stroke 2010 6CE-44352-00-00
Yamaha FL300BET1U/BET1X 300 4-Stroke 2010 6CE-44352-00-00
Yamaha FL300BETU/BETX 300 4-Stroke 2016 6CE-44352-00-00
Yamaha LF225XB 225 4-Stroke 2016 6CE-44352-00-00
Yamaha LF225XCA 225 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha LF250UCA 250 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha LF250XB 250 4-Stroke 2016 6CE-44352-00-00
Yamaha LF250XCA 250 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha LF300UCA 300 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha LF300XCA 300 4-Stroke 2010–2016 6CE-44352-00-00
Yamaha VF250XA 250 4-Stroke 2015–2016 6CE-44352-00-00

Technical Specs

Product Type
Water Pump Impeller
Installation
Direct Replacement
Housing Material
Neoprene and Plastic
Dimensions
Overall Diameter: 90 mm (3.543 in), Height: 36 mm (1.417 in), Shaft Diameter: 24.6 mm (0.969 in)
Weight
90 g (0.198 lb)
Number of Blades
6
Application
Yamaha Outboard Engine Cooling System
Other Technical Attributes
Requires wood drift key for installation, included in OEM replacement kits

What’s in the Box

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

Note: When purchasing a complete water pump repair kit separate from just the impeller, additional components are included such as gaskets, plates, bolts, O-rings, and seals.

Installation Notes

  1. Disconnect the battery before beginning work.
  2. Remove the lower unit (gearcase) from the outboard motor.
  3. Unbolt and carefully lift the water pump housing to expose the impeller.
  4. Remove the old impeller, noting the rotational direction of the existing blades.
  5. Clean the housing interior and inspect for wear or damage.
  6. Install the new impeller, using the wood drift key to lock it to the driveshaft. Gently turn the driveshaft in a clockwise direction while pressing down on the housing to seat the blades.
  7. Re-install the water pump housing, ensuring a proper seal.
  8. Re-attach the lower unit to the engine.
  9. Reconnect the battery and test the engine with a water supply to confirm cooling system function.

Troubleshooting & FAQ

How do I tell if my impeller is failing?

Common signs of a worn or damaged impeller include a weak or nonexistent water stream from the "telltale" outlet, engine overheating alarms, or a noticeable decrease in engine performance. A physical inspection will reveal brittle, cracked, or missing blades.

How often should I replace my impeller?

For preventative maintenance, it is recommended to replace your water pump impeller every 1-2 years or every 100-200 hours of operation, depending on usage conditions. Engines operated in saltwater or sandy/silty conditions may require more frequent changes.

Will this impeller fit models newer than 2016?

Yes, this impeller fits Yamaha 4.2L V6 models from 2010 to the present day. The compatibility chart lists verified years, but the part remains the same for current production models in this series.

Is the wood drift key included?

This listing is for the impeller only. The wood drift key is a separate component that is required for installation. It is typically included in complete water pump repair kits but not when purchasing the impeller alone.

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.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.