Water Pump Repair Kit – Fits Yamaha F90B, F115, VF115 Outboards (Replaces 68V-W0078-01-00, 68V-W0078-00-00)
Water Pump Repair Kit – Fits Yamaha F90B, F115, VF115 Outboards (Replaces 68V-W0078-01-00, 68V-W0078-00-00) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
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 Repair Kit – Fits Yamaha F90B, F115, VF115 Outboards (Replaces 68V-W0078-01-00, 68V-W0078-00-00) is designed for a wide range of Yamaha 4-stroke outboard engines from 75 to 115 HP, covering models from 2002 to the current year. It ensures proper engine cooling and performance for models including the F75, F90B, F115, LF115, VF90, and VF115.
This kit serves as a direct replacement, providing an aftermarket interchange for Yamaha part numbers 68V-W0078-01-00 and its predecessor 68V-W0078-00-00, as well as Sierra 18-3442 and 18-3523-1.
- Engineered for direct-replacement installation.
- Features a durable neoprene impeller for reliable water flow.
- Includes all necessary gaskets, O-rings, and hardware for a complete service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 68V-W0078-01-00 | Current OEM Part Number |
| Yamaha | 68V-W0078-00-00 | Superseded by 68V-W0078-01-00 |
| Sierra | 18-3442 | Aftermarket Interchange |
| Sierra | 18-3523-1 | Aftermarket Interchange |
| GLM | 9-48611 | Aftermarket Interchange |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is designed for select Yamaha outboard motors.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F75 | 75 | 4-Stroke | 2017–Up | 68V-W0078-01-00 | |
| Yamaha | F90B | 90 | 4-Stroke | 2016–Up | 68V-W0078-01-00 | |
| Yamaha | F115 | 115 | 4-Stroke | 2002–Up | 68V-W0078-01-00 | Superseded from 68V-W0078-00-00 |
| Yamaha | LF115 | 115 | 4-Stroke | 2002–Up | 68V-W0078-01-00 | |
| Yamaha | VF90 | 90 | 4-Stroke | 2018 | 68V-W0078-01-00 | |
| Yamaha | VF115 | 115 | 4-Stroke | 2015–Up | 68V-W0078-01-00 |
Technical Specs
- Product Type
- Water Pump Repair Kit
- Installation
- Direct Replacement
- Material
- Neoprene Impeller, Plastic Housing Components, Stainless Steel Hardware
- Package Contents
- Complete Repair Kit
- OEM Supersession
- 68V-W0078-00-00 superseded by 68V-W0078-01-00
- Product Height
- 9.5
- Product Width
- 12.0
- Product Length
- 15.5
What’s in the Box
- 1 x Cartridge Insert (61A-44322-02-00)
- 1 x Outer Plate Cartridge (68V-44323-00-00)
- 1 x Water Pump Gasket (6E5-44315-A0-00)
- 1 x Impeller (6E5-44352-01-00)
- 4 x Bolt with Washer (90119-08M14-00)
- 1 x Woodruff Key (90280-04M05-00)
- 1 x O-Ring (93210-37M67-00)
- 1 x O-Ring (93210-86M38-00)
- 2 x Dowel Pin (93606-12019-00)
- 1 x Drive Shaft Collar (61A-45527-00-00)
- 1 x Spacer (61A-45538-00-00)
- 1 x Wave Washer (90206-22M19-00)
- 2 x Plate Washer (90201-22M01-00)
Installation Notes
- Disconnect the battery and shift the outboard into the neutral position.
- Remove the lower unit (gearcase) by unbolting it from the midsection. This typically involves removing several bolts, including one often hidden under the trim tab anode.
- Place the lower unit on a workbench and remove the bolts securing the water pump housing.
- Lift the housing off, taking note of the position of the impeller, gaskets, and plates.
- Remove the old impeller, key, gaskets, and wear plates from the driveshaft and housing.
- Clean all surfaces thoroughly, removing any old gasket material or corrosion.
- Install the new gasket, wear plate, and cartridge components as provided in the kit.
- Slide the new Woodruff key into the driveshaft slot and install the new impeller, rotating the driveshaft clockwise to seat the vanes correctly.
- Install the new O-rings and outer housing components, tightening the bolts to the manufacturer's specified torque.
- Reinstall the lower unit, ensuring the driveshaft, shift shaft, and water tube align correctly before tightening the mounting bolts.
Troubleshooting & FAQ
Which Yamaha engines does this kit fit?
This kit fits a range of Yamaha 4-stroke outboards from 75HP to 115HP, specifically models F75 (2017–Up), F90B (2016–Up), F115 (2002–Up), LF115 (2002–Up), VF90 (2018), and VF115 (2015–Up). Always check the compatibility table to confirm your specific model and year.
What is the difference between 68V-W0078-01-00 and 68V-W0078-00-00?
The part number 68V-W0078-00-00 was the original OEM number, which has since been superseded by 68V-W0078-01-00. Our kit is a direct replacement for both of these Yamaha parts, ensuring you have the most current component design.
Is this a complete kit? What parts are included?
Yes, this is a comprehensive repair kit that includes all the necessary components for a standard water pump service. It contains a new impeller, housing cartridge, gaskets, plates, O-rings, and all required hardware like bolts and pins. Please see the "What’s in the Box" section for a complete list of included part numbers.
What are the signs of a failing water pump?
Common symptoms include a weak or intermittent water stream from the "tell-tale" port, engine overheating alarms, and in severe cases, steam from the exhaust. Reduced cooling efficiency can cause significant engine damage, so it's critical to address these signs promptly.
How often should I replace my water pump impeller?
As a general guideline, it's recommended to inspect your water pump annually and replace the impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can vary based on usage conditions (e.g., saltwater vs. freshwater, sandy/silty water).
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.
