Water Pump Impeller – Fits Yamaha 6HP & 8HP 2-Stroke Outboards (Replaces 6G1-44352-00-00)
Water Pump Impeller – Fits Yamaha 6HP & 8HP 2-Stroke Outboards (Replaces 6G1-44352-00-00) is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller – Fits Yamaha 6HP & 8HP 2-Stroke Outboards ...
Water Pump Impeller – Fits Yamaha 6HP & 8HP 2-Stroke Outboards (Replaces 6G1-44352-00-00) is backordered and will ship as soon as it is back in stock.
Product Details
This water pump impeller is a replacement cooling-system component for selected Yamaha 6HP and 8HP 2-stroke outboard engines. It replaces Yamaha part number 6G1-44352-00-00 and is designed to restore water-pump circulation when the original impeller is worn, cracked, hardened, or damaged.
A functioning impeller helps maintain cooling-water flow through the outboard. Always confirm the exact engine model, year, serial number, and the dimensions of the existing impeller before ordering, because Yamaha fitment can vary between model versions.
- Replacement water pump impeller for selected Yamaha 6HP and 8HP 2-stroke outboards.
- Cross-references Yamaha part number 6G1-44352-00-00.
- Designed as a direct replacement when the original impeller has the same fit and dimensions.
- Lubricate the impeller and pump housing during installation; do not operate a newly installed impeller dry.
Part Number Reference
Use the following manufacturer reference when comparing this replacement with the part installed in your engine.
| Brand | Part Number |
|---|---|
| Yamaha | 6G1-44352-00-00 |
Engine & Model Compatibility
This impeller is listed for selected Yamaha 6HP and 8HP 2-stroke outboards. The model examples below are provided as a reference only; confirm the complete model code, production year, serial number, and impeller dimensions before purchase.
| Brand | Rated HP | Stroke | Model Reference | Manufacturer Part No. | Fitment Notes |
|---|---|---|---|---|---|
| Yamaha | 6 HP | 2-Stroke | Selected 6HP models, including model-code families such as 6SJ, 6LJ, 6LH, 6SH, 6LG, 6SG, 6LF, 6SF, 6LD, and 6SD | 6G1-44352-00-00 | Verify the complete model code, year, serial number, and original impeller dimensions. |
| Yamaha | 8 HP | 2-Stroke | Selected 8HP models, including model-code families such as 8LN, 8SN, 8LJ, 8SJ, 8LK, 8SK, 8LH, 8SH, 8LG, 8SG, 8LF, 8SF, 8LD, and 8SD | 6G1-44352-00-00 | Verify the complete model code, year, serial number, and original impeller dimensions. |
Technical Specifications
- Product Type
- Water pump impeller
- Application
- Selected Yamaha 6HP and 8HP 2-stroke outboards
- Installation
- Direct replacement when fitment is confirmed
- Material
- Neoprene rubber with a rigid hub
- Number of Blades
- 6
- Impeller Height
- 18.0 mm (0.71 inch)
- Overall Diameter
- 40.0 mm (1.57 inch)
- Hub Shaft Diameter
- 11.9 mm (0.47 inch)
- Approximate Weight
- 10 g (0.35 oz)
- Installation Lubricant
- Silicone grease, glycerine, or a small amount of dish soap may be used to prevent dry startup.
What's in the Box
- 1 x Water pump impeller
No gasket, wear plate, water-pump key, or complete water-pump service kit is included unless specifically stated for the selected order.
Installation Notes
- Stop the engine, disconnect the battery if equipped, remove the spark-plug leads, and follow the manufacturer's safety instructions.
- Remove the lower unit according to the service procedure for your exact Yamaha model.
- Remove the water-pump housing cover and retain the original components in their installation order.
- Remove the old impeller from the driveshaft. Record the vane direction and check that the drive key is present and undamaged.
- Clean sediment, corrosion, and old gasket material from the pump housing, wear plate, and cover.
- Compare the new impeller with the removed part for blade count, hub configuration, height, and diameter.
- Apply a light coat of silicone grease, glycerine, or dish soap to the impeller and the inside of the pump housing. Do not install or run the impeller dry.
- Install the drive key and slide the impeller onto the driveshaft in the correct orientation. Rotate the driveshaft in the direction specified by the service manual while lowering the housing over the vanes.
- Reinstall the pump cover and use new gaskets or seals where required by the service procedure.
- Reattach the lower unit, tighten all fasteners to the manufacturer's specified torque, and confirm that the water tube and driveshaft are correctly engaged.
- Start the engine only in an appropriate water supply or test tank and verify a strong cooling-water tell-tale stream. Stop the engine immediately if overheating or abnormal operation occurs.
Troubleshooting & FAQ
How do I confirm that this impeller fits my outboard?
Compare the complete Yamaha model code, year, and serial number with the service-parts information for your engine. Also compare the old impeller's blade count, height, outside diameter, hub diameter, and drive-key arrangement. Horsepower alone is not sufficient to confirm fitment.
What are the signs of a failing water-pump impeller?
Possible symptoms include a weak or intermittent tell-tale stream, higher-than-normal engine temperature, an overheating warning, reduced cooling-water flow, or cracked, brittle, or missing rubber vanes found during inspection.
How often should the impeller be replaced?
Replacement intervals depend on the engine manufacturer's maintenance schedule and operating conditions. Inspect the impeller regularly and replace it when the vanes show wear, distortion, cracks, hardening, or damage. Frequent saltwater, sandy-water, or seasonal use may require more frequent inspection.
Can I install the impeller dry?
No. Use a suitable light lubricant during installation to reduce friction during the first startup. Never run the water pump without an adequate water supply.
Does this listing include a complete water-pump kit?
No. This listing is for one water pump impeller. Other service parts, such as gaskets, seals, a drive key, a wear plate, or a complete housing, are not included unless expressly listed.
Is this an OEM Yamaha part?
This is a replacement impeller identified for use with Yamaha part number 6G1-44352-00-00. Yamaha is a trademark of its respective owner. Confirm fitment against your engine before installation.
Safety & Important Information
- Verify the complete engine model, year, serial number, and original-part dimensions before ordering.
- Do not rely on horsepower alone to determine compatibility.
- Do not run the engine without an adequate water supply.
- Inspect the pump housing, wear plate, key, gaskets, and seals while replacing the impeller.
- Professional installation is recommended if you are not familiar with outboard lower-unit service.
About Sea Sierra
- Marine Replacement Parts — Practical replacement components for common outboard maintenance and repair needs.
- Fitment-Focused Information — Use manufacturer references, complete model details, and original-part comparisons to select the correct part.
- Maintenance Support — Follow the engine manufacturer's service procedures for safe installation and reliable operation.
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