Water Pump Impeller Kit – Fits Yamaha 4-Stroke 80HP-100HP Outboards (Replaces 67F-44352-00, 67F-W0078-00-00)
Water Pump Impeller Kit – Fits Yamaha 4-Stroke 80HP-100HP Outboards (Replaces 67F-44352-00, 67F-W0078-00-00) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Water Pump Impeller Kit fits Yamaha 4-Stroke 80HP-100HP Outboards (Replaces 67F-44352-00, 67F-W0078-00-00) and provides a complete solution for rebuilding your engine's cooling system. It is designed specifically for Yamaha F80A/B and F100A/D 4-stroke outboard motors.
The kit serves as a direct interchange for Yamaha parts 67F-44352-00-00 and 67F-W0078-00-00, as well as Sierra 18-3042, 18-3409, and Mallory 9-45612.
- Designed as a direct OEM-replacement for straightforward installation.
- Features a durable, chemical corrosion-resistant CR rubber impeller for enhanced longevity.
- Includes a full set of gaskets, O-rings, a wear plate, and hardware for a comprehensive service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Yamaha | 67F-44352-00-00 |
| Yamaha | 67F-W0078-00-00 |
| Sierra | 18-3042 |
| Sierra | 18-3409 |
| Mallory | 9-45612 |
Engine & Model Compatibility
Confirm your engine model in the table below.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yamaha | F80A | 80 | 4-Stroke | 67F-44352-00-00 | Full kit: 67F-W0078-00-00 |
| Yamaha | F80B | 80 | 4-Stroke | 67F-44352-00-00 | Full kit: 67F-W0078-00-00 |
| Yamaha | F100A | 100 | 4-Stroke | 67F-44352-00-00 | Full kit: 67F-W0078-00-00 |
| Yamaha | F100D | 100 | 4-Stroke | 67F-44352-00-00 | Full kit: 67F-W0078-00-00 |
Technical Specs
- Product Type
- Outboard Water Pump Impeller Kit
- Installation
- OEM Replacement
- Material
- CR Rubber (Impeller), Stainless Steel (Components)
- Housing Color
- Black/Silver
- Weight
- 86.3 grams (0.19 lbs)
- Dimensions
- 19.0cm L x 12.0cm W x 7.0cm H
- Compatibility
- Yamaha 4-Stroke 80HP, 100HP
- Other Technical Attributes
- Non-asbestos Gasket, Chemical Corrosion Resistant
What’s in the Box
- 1 x Impeller (67F-44352-00)
- 2 x Damper (663-44366-00)
- 1 x Pin (93604-10M03)
- 1 x Gasket (688-44315-A0)
- 1 x Water Plate (67F-44323-00)
- 1 x Gasket (688-44324-A0)
- 1 x Key (90280-04M04)
- 1 x Gasket (688-44316-00)
- 1 x O-ring (93210-46044)
Installation Notes
- Disconnect the battery and place the outboard motor in the neutral gear position.
- Remove the bolts securing the lower unit and carefully separate it from the upper housing.
- Unbolt the water pump housing, taking note of the orientation of all components.
- Remove the old impeller, woodruff key, gaskets, and wear plate.
- Thoroughly clean all mating surfaces to remove any old gasket material or corrosion.
- Install the new components from the kit in the correct sequence.
- Reassemble the water pump housing and tighten the bolts to the manufacturer's specified torque.
- Carefully reinstall the lower unit, ensuring the driveshaft, shift shaft, and water tube are properly aligned.
- After reassembly, start the engine with a reliable water source (like flushing muffs) to verify the pump is operating correctly.
Troubleshooting & FAQ
How do I know if this kit fits my Yamaha outboard?
This kit is specifically for Yamaha 4-Stroke 80HP (F80A, F80B) and 100HP (F100A, F100D) models. To ensure a perfect match, always cross-reference your engine model and original part number with the compatibility tables on this page.
When should I replace my water pump impeller?
For optimal engine health, inspect the impeller annually and replace it every 100-200 operating hours. A complete kit replacement is recommended every 300 hours or whenever significant wear, brittleness, or damage is observed.
What are the signs of a failing water pump?
Key symptoms include a weak or intermittent water stream from the "telltale" outlet, engine overheating alarms, a high temperature reading on your gauge, or finding a deformed or damaged impeller during an inspection.
Does this kit include the water pump housing?
No, this is a water pump rebuild kit containing the internal wear components (impeller, plate, gaskets, etc.). It is designed to be installed into your existing water pump housing.
What is the benefit of the CR rubber impeller?
The impeller is made from Chloroprene (CR) rubber, which provides excellent resistance to heat, chemicals (fuel/oil), and saltwater degradation, leading to a more durable and reliable service life compared to standard neoprene.
Can I install this kit myself?
While DIY installation is common, it requires mechanical knowledge. We recommend professional installation to ensure all parts are correctly seated, torqued, and aligned, which is critical for engine safety and performance.
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
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