Water Pump Impeller – Fits Yamaha 100-250 HP Outboards (Replaces 6E5-44352-01-00)
Water Pump Impeller – Fits Yamaha 100-250 HP Outboards (Replaces 6E5-44352-01-00) is backordered and will ship as soon as it is back in stock.
Worry-free returns
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
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.
Water Pump Impeller – Fits Yamaha 100-250 HP Outboards (Replaces 6E...
Water Pump Impeller – Fits Yamaha 100-250 HP Outboards (Replaces 6E5-44352-01-00) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller is designed for a wide range of Yamaha 4-Stroke outboard motors from 100 HP to 250 HP. It is compatible with F100, F115, F150, F175, F200, F225, and F250 series engines.
It serves as a direct aftermarket replacement for Yamaha OEM part 6E5-44352-01-00 and Sierra part 18-3071.
- Installation Method: Direct replacement
- Material: Durable neoprene rubber compound
- Includes: Impeller only
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6E5-44352-01-00 |
| Sierra | 18-3071 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha owners, please verify your specific F-series model and horsepower rating.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | F100 | 100 | 4-Stroke | 6E5-44352-01-00 | |
| Yamaha | F115 | 115 | 4-Stroke | 6E5-44352-01-00 | |
| Yamaha | F150 | 150 | 4-Stroke | 6E5-44352-01-00 | |
| Yamaha | F175 | 175 | 4-Stroke | 6E5-44352-01-00 | |
| Yamaha | F200 | 200 | 4-Stroke | 6E5-44352-01-00 | |
| Yamaha | F225 | 225 | 4-Stroke | 6E5-44352-01-00 | |
| Yamaha | F250 | 250 | 4-Stroke | 6E5-44352-01-00 |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct replacement
- Material
- Neoprene rubber
- Color
- Black
What’s in the Box
- 1 x Water Pump Impeller (Replaces 6E5-44352-01-00)
Installation Notes
- Disconnect the battery and remove the engine cover.
- Locate and unbolt the lower unit from the outboard's midsection.
- Carefully lower the gearcase to access the water pump housing.
- Remove the water pump housing cover bolts and lift the housing.
- Slide the old impeller off the driveshaft, noting the keyway's position.
- Clean the housing interior and inspect for wear or damage.
- Lubricate the new impeller and housing interior with a suitable marine grease.
- Install the new impeller, aligning it with the driveshaft keyway. The blades should curve in the direction of shaft rotation (typically clockwise).
- Reinstall the water pump housing, ensuring a proper seal.
- Reattach the lower unit and tighten all bolts to the manufacturer's torque specifications.
- Reconnect the battery and test the engine with a proper water supply to verify cooling system function.
Troubleshooting & FAQ
How do I know if my water pump impeller needs replacing?
Common signs include a weak or intermittent water stream from the "tell-tale" outlet, engine overheating alerts, or a visibly cracked, brittle, or worn-out impeller during inspection.
What is the recommended replacement interval?
For optimal performance and engine safety, we recommend replacing the impeller every 100-200 service hours or at least once per year, whichever comes first, especially in saltwater environments.
Will this fit a 2-stroke Yamaha?
This specific impeller is designed for the 4-stroke Yamaha F-series models listed. Using the wrong impeller can cause poor performance or severe engine damage. Always check your engine's part manual to confirm compatibility.
Can I run the engine dry after installing the new impeller?
No. Never run the engine without a proper water supply (using a flush "muff" attachment or running it in water). Running the pump dry for even a few seconds can destroy the new neoprene impeller.
What's the difference between this and a full water pump kit?
This listing is for the impeller only. A full kit typically also includes the housing, face plate, gaskets, and other hardware. If your pump housing is scored, warped, or corroded, a complete kit is the recommended solution.
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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
