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Description
Water Pump Impeller Kit – Fits Yamaha 25-30 HP (Replaces 61N-W0078-10-00, 61N-W0078-11-00)Water Pump Impeller Kit Fits Yamaha 25 30 HP (Replaces 61N W0078 10 00, 61N W0078 11 00) This water pump impeller repair kit is designed for a wide range of Yamaha 2 stroke and 4 stroke outboard motors from 25 to 30 HP. It fits various 2 stroke models including the 25B, 25X, 30H, and 30G series (20002018), and 4 stroke models F25, F25A, and F25B (19982019). Please note that it does not fit F25C models. This kit serves as a direct replacement for
Water Pump Impeller Kit – Fits Yamaha 25-30 HP (Replaces 61N-W0078-10-00, 61N-W0078-11-00)
This water pump impeller repair kit is designed for a wide range of Yamaha 2-stroke and 4-stroke outboard motors from 25 to 30 HP. It fits various 2-stroke models including the 25B, 25X, 30H, and 30G series (2000–2018), and 4-stroke models F25, F25A, and F25B (1998–2019). Please note that it does not fit F25C models.
This kit serves as a direct replacement for multiple Yamaha and aftermarket part numbers, ensuring a precise fit and restoring the performance of your engine's cooling system. It contains all necessary components for a standard lower unit service.
- Complete Kit: Includes a new impeller, housing, wear plate, seals, and hardware.
- Durable Materials: Features a neoprene impeller, PA66 nylon housing, and a 316 stainless steel cup for longevity.
- Quality Manufacturing: Produced in an ISO9002 certified facility for reliable performance.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Yamaha | 61N-W0078-10-00 |
| Yamaha | 61N-W0078-11-00 |
| Yamaha | 61N-W0078-13-00 |
| Yamaha | 61N-W0078-14-00 |
| Yamaha | 69P-W0078-00 |
| Yamaha | 69P-W0078-01 |
| Yamaha | 69P-W0078-02 |
| Sierra | 18-3432 |
| AM | AM61N-W0078-11 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.
Yamaha 2-Stroke Models
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | 25B (25BMHL) | 25 | 2-Stroke | 2001-2018 | 61N-W0078-10-00 | |
| Yamaha | 25B (25BMHS) | 25 | 2-Stroke | 2001-2007 | 61N-W0078-10-00 | |
| Yamaha | 25X (25XMHS) | 25 | 2-Stroke | 2001-2018 | 61N-W0078-10-00 | |
| Yamaha | 30H (30HMHL) | 30 | 2-Stroke | 2002-2018 | 61N-W0078-10-00 | |
| Yamaha | 30H (30HMHS) | 30 | 2-Stroke | 2001-2018 | 61N-W0078-10-00 | |
| Yamaha | 30H (30HWHL) | 30 | 2-Stroke | 2016-2018 | 61N-W0078-10-00 | |
| Yamaha | 30H (30HWL) | 30 | 2-Stroke | 2002-2018 | 61N-W0078-10-00 | |
| Yamaha | 30G (30GMH) | 30 | 2-Stroke | 2000-2001 | 61N-W0078-10-00 | |
| Yamaha | C30 (C30ELRR) | 30 | 2-Stroke | 1993 | 61N-W0078-10-00 | |
| Yamaha | C30 (C30ELRS) | 30 | 2-Stroke | 1994 | 61N-W0078-10-00 | |
| Yamaha | C30 (C30MLHS) | 30 | 2-Stroke | 1994 | 61N-W0078-10-00 | |
| Yamaha | C30 (C30ELRT) | 30 | 2-Stroke | 1995 | 61N-W0078-10-00 | |
| Yamaha | C30 | 30 | 2-Stroke | 1996-1997 | 61N-W0078-10-00 |
Yamaha 4-Stroke Models
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F25 | 25 | 4-Stroke | 1998-2005 | 61N-W0078-11-00 | |
| Yamaha | F25A | 25 | 4-Stroke | 2009-2019 | 61N-W0078-11-00 | |
| Yamaha | F25B | 25 | 4-Stroke | 2012-2018 | 61N-W0078-11-00 | |
| Yamaha | F25D (F25DEHTL) | 25 | 4-Stroke | 2009-2017 | 61N-W0078-11-00 | |
| Yamaha | F25D (F25DETL) | 25 | 4-Stroke | 2009-2017 | 61N-W0078-11-00 | |
| Yamaha | F25D (F25DMHL) | 25 | 4-Stroke | 2009-2017 | 61N-W0078-11-00 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Water Pump Impeller Repair Kit |
| Installation | Standard Lower Unit Service |
| Housing Material | Nylon PA66 Plastic (Water Pump Housing), Stainless Steel 316 (Cup and Wear Plate) |
| Impeller Material | Neoprene |
| Other Technical Attributes | ISO9002 certified manufacturing |
Package Contents
- 1 x Impeller (63V-44352-01-00)
- 1 x Cartridge Insert (63V-44322-00-00)
- 1 x Cartridge Outer Plate (68T-44323-00-00)
- 1 x Water Seal Damper 3 (6L2-44367-00-00)
- 1 x Woodruff Key (664-44338-00-00)
- 1 x O-Ring (93210-49046-00)
- 2 x Plates (63V-44328-01-00)
- 2 x Dowel Pins (93604-10M03-00)
- 4 x Bolts (97095-08045-00)
Explosion Diagram
Installation Guide
- Disconnect the battery and remove the engine cover for safety.
- Place the outboard in neutral and remove the bolts securing the lower unit (gearcase) to the upper casing.
- Carefully lower and separate the gearcase from the drive shaft housing.
- Unscrew the bolts on the water pump housing and slide it up the driveshaft to expose the impeller.
- Remove the old impeller, woodruff key, wear plate, gaskets, and seals. Note their orientation.
- Thoroughly clean all contact surfaces, removing any old gasket material or corrosion.
- Install the new components from the kit in the reverse order of removal, starting with the wear plate and key.
- Lightly grease the new impeller and slide it onto the driveshaft, turning clockwise to seat the vanes correctly.
- Reinstall the water pump housing, ensuring seals are properly seated, and tighten bolts to the specified torque.
- Reattach the lower unit to the upper casing and secure it with the mounting bolts.
- Reconnect the battery and test the engine in a suitable water source, confirming a strong tell-tale stream.
Troubleshooting & FAQ
Q: How do I confirm this kit will fit my specific engine?
A: The best way is to check the part number on your existing water pump housing or in your engine's service manual. Cross-reference this number with the list provided in our "Part Number Cross-Reference" table. Additionally, use our "Compatible Engine Models" table to find your model and year.
Q: What are the common signs of a failing water pump impeller?
A: The most common indicators include engine overheating, a weak or non-existent water stream from the "tell-tale" outlet, and in some cases, a slight burning rubber smell. Reduced engine performance at high RPMs can also be a symptom.
Q: How often should I replace my water pump impeller?
A: For preventative maintenance, it is recommended to replace your impeller every 1-2 years or every 100-200 hours of use, whichever comes first. This interval can vary based on whether you operate in freshwater or saltwater and the amount of debris in the water.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy