Water Pump Impeller Kit – Fits Yamaha 4-Stroke 75-100 HP (Replaces 67F-W0078-00-00, 67F-44311-01-00)
Water Pump Impeller Kit – Fits Yamaha 4-Stroke 75-100 HP (Replaces 67F-W0078-00-00, 67F-44311-01-00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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Water Pump Impeller Kit – Fits Yamaha 4-Stroke 75-100 HP (Replaces ...
Water Pump Impeller Kit – Fits Yamaha 4-Stroke 75-100 HP (Replaces 67F-W0078-00-00, 67F-44311-01-00) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller Kit with Housing is a direct replacement part for Yamaha 4-Stroke outboard engines including 75 HP (2003–2017), 80 HP (1999–2003), 90 HP (2003–2017), and 100 HP (1999–2003) models.
It serves as a direct cross-reference for Yamaha parts 67F-W0078-00-00 and 67F-W0078-01-00, Sierra 18-3409 and 18-3451, Mallory 9-48608, and Red Rhino YA-WP-06.
- Designed for direct OEM replacement, ensuring proper fit and function.
- Constructed with durable materials: Nylon PA66 plastic housing and a neoprene rubber impeller.
- Includes a complete set of gaskets, seals, and hardware for a full service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 67F-W0078-00-00 |
| Yamaha | 67F-W0078-01-00 |
| Sierra | 18-3409 |
| Sierra | 18-3451 |
| Mallory | 9-48608 |
| Red Rhino | YA-WP-06 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha outboards, this kit fits the specific F-series models listed. Always verify your engine's part number requirements before ordering.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F75 | 75 | 4-Stroke | 2003–2017 | 67F-W0078-00-00 | |
| Yamaha | F80 | 80 | 4-Stroke | 1999–2003 | 67F-W0078-00-00 | |
| Yamaha | F90 | 90 | 4-Stroke | 2003–2017 | 67F-W0078-00-00 | |
| Yamaha | F100 | 100 | 4-Stroke | 1999–2003 | 67F-W0078-00-00 |
Technical Specs
- Product Type
- Water Pump Impeller Kit with Housing
- Installation
- Direct OEM replacement
- Housing Material
- Nylon PA66 Plastic
- Impeller Material
- Neoprene Rubber
- Plate Material
- Stainless Steel
- Gasket Material
- Non-asbestos paper
- Weight
- 0.44 kg (15.58 oz)
What’s in the Box
- 1 x Water Pump Impeller (67F-44352-00-00)
- 1 x Insert Cup (67F-44322-00-00)
- 1 x Impeller Key (90280-04M02-00)
- 1 x Impeller Plate (67F-44323-00-00)
- 1 x O-Ring (93210-46044-00)
- 1 x Water Pump Gasket (688-44315-00-00)
- 1 x Water Pump Gasket (688-44316-01-00)
- 1 x Water Pump Gasket (688-44324-A0-00)
- 1 x Water Pump Housing (67F-44311-01-00)
- 2 x Bolt (90119-08M13-00)
- 2 x Bolt (90119-08M87-00)
- 4 x Washers (90209-08M02-00)
Installation Notes
- Disconnect the battery and ensure the engine is off and cool.
- Drain the lower unit gearcase oil into a suitable container.
- Remove the bolts securing the lower unit (gearcase) to the engine's upper casing and carefully lower it.
- Unbolt and remove the old water pump housing, impeller, and associated components. Note their orientation.
- Thoroughly clean the mounting surfaces, removing any old gasket material or debris.
- Install the new wear plate, gaskets, impeller key, and impeller. Ensure the impeller vanes are oriented correctly by turning the driveshaft clockwise during installation.
- Slide the new housing down over the impeller, securing it with the provided bolts and washers. Torque bolts to manufacturer specifications.
- Realign and install the lower unit, ensuring the driveshaft, shift shaft, and water tube are correctly seated.
- Refill the gearcase with the correct type and amount of marine gear oil.
- Before launching, test the engine using a flush-muff ("earmuffs") and a water hose to confirm a strong, steady stream from the tell-tale outlet.
Troubleshooting & FAQ
How do I confirm this kit fits my Yamaha outboard?
This kit is for specific Yamaha F75, F80, F90, and F100 4-Stroke models. Please check the "Engine & Model Compatibility" table and match your engine's model and year range. Cross-referencing your old part number with our "Part Number Matrix" is also a reliable way to verify fitment.
What are signs that my water pump impeller is failing?
Common signs include a weak or non-existent water stream from the "tell-tale" outlet, the engine overheating alarm sounding, or visible steam from the exhaust. Reduced engine performance at high RPMs can also be an indicator.
How often should this water pump kit be replaced?
As a critical preventative maintenance item, we recommend replacing the entire water pump kit every 1–2 years or every 100–200 hours of operation, whichever comes first. This interval can be shorter in saltwater or silt-heavy environments.
What's the difference between this aftermarket part and an OEM one?
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.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
What is the warranty and return policy?
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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