Water Pump Repair Kit – Fits Yamaha 50-115 HP Outboard (Replaces 68V-W0078-00, 68V-W0078-01)
Water Pump Repair Kit – Fits Yamaha 50-115 HP Outboard (Replaces 68V-W0078-00, 68V-W0078-01) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Repair Kit – Fits Yamaha 50-115 HP Outboard (Replaces 68...
Water Pump Repair Kit – Fits Yamaha 50-115 HP Outboard (Replaces 68V-W0078-00, 68V-W0078-01) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Repair Kit – Fits Yamaha 50-115 HP Outboard is designed to restore cooling system performance. It is compatible with a range of Yamaha 4-stroke outboards, including 50, 75, 90, and 115 HP models manufactured between 2002 and 2018. The kit provides all necessary components for a complete water pump overhaul.
This assembly is a direct replacement for Yamaha OEM part numbers 68V-W0078-00-00 and 68V-W0078-01-00, as well as aftermarket equivalents from Sierra (18-3523-1, 18-3442), GLM (12067), and Mallory (9-48611).
- Engineered for direct OEM replacement installation.
- Manufactured in an ISO 9002 certified facility to meet or exceed original specifications.
- Includes all essential components for a full service, including the housing, impeller, and gaskets.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 68V-W0078-00-00 |
| Yamaha | 68V-W0078-01-00 |
| Sierra | 18-3523-1 |
| Sierra | 18-3442 |
| GLM | 12067 |
| Mallory | 9-48611 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | F115 | 115 | 4-Stroke | 2002–2017 | 68V-W0078-00-00, 68V-W0078-01-00 |
| Yamaha | LF115 | 115 | 4-Stroke | 2002–2017 | 68V-W0078-00-00, 68V-W0078-01-00 |
| Yamaha | VF115 | 115 | 4-Stroke | 2015–2017 | 68V-W0078-00-00, 68V-W0078-01-00 |
| Yamaha | F90B | 90 | 4-Stroke | 2016–2017 | 68V-W0078-00-00, 68V-W0078-01-00 |
| Yamaha | VF90A | 90 | 4-Stroke | 2018 | 68V-W0078-00-00, 68V-W0078-01-00 |
| Yamaha | F75B | 75 | 4-Stroke | 2017 | 68V-W0078-00-00, 68V-W0078-01-00 |
Technical Specs
- Product Type
- Water Pump Repair Kit
- Installation
- Direct OEM Replacement
- Quality Standard
- Manufactured to OEM specifications using the same material as originals. Produced in an ISO9002 certified factory.
What’s in the Box
- 1 x Water Pump Housing (61A-44311-01-00)
- 1 x Housing Insert Cup (61A-44322-02-00)
- 1 x Impeller (6E5-44352-01-00)
- 1 x Impeller Key (90280-04M05-00)
- 1 x O-Ring (93210-86M38-00)
- 1 x O-Ring (93210-37M67-00)
- 1 x Water Pump Base Outer Plate (68V-44323-00-00)
- 2 x Gasket, Water Pump (6E5-44315-A0-00)
- 4 x Bolt (97095-08045-00)
- 2 x Pin, Dowel (93606-12019-00)
- 4 x Washer, Bolt (90209-08M02-00)
Installation Notes
- Disconnect the battery and remove the engine cover. Ensure the engine is securely mounted on a stand or transom.
- Place the outboard in neutral gear and remove the bolts securing the lower unit (gearcase) to the midsection.
- Carefully lower the gearcase away from the engine, disconnecting the shift shaft if necessary.
- Unbolt and remove the old water pump housing to access the impeller and wear plates.
- Clean all mating surfaces thoroughly, removing old gasket material and any corrosion.
- Install the new gaskets, wear plates, impeller (with key), and housing from the kit. Lightly grease the interior of the housing cup.
- Torque the housing bolts to the manufacturer’s specification.
- Reinstall the lower unit, ensuring the driveshaft, shift shaft, and water tube align correctly.
- Secure the gearcase with its bolts and reconnect the battery.
- Test the engine using a flush-mount "earmuff" attachment to confirm water is pumping correctly from the tell-tale port.
Troubleshooting & FAQ
How do I know if this kit fits my Yamaha outboard?
The most reliable method is to match your engine's model and year against the compatibility table. You can also verify by cross-referencing your existing part number with those listed in the Part Number Matrix.
What are the signs of a failing water pump?
Common symptoms include a weak or non-existent water stream from the "tell-tale" outlet, engine overheating alarms, and reduced engine performance as the ECU enters a self-protection mode.
How often should the water pump impeller be replaced?
As a general maintenance guideline, inspect the impeller annually and replace it every 2-3 years or 200-300 operating hours, whichever comes first. Service intervals should be shorter if operating frequently in sandy, silty, or saltwater environments.
Does this kit include the pump housing?
Yes, this is a complete kit that includes the main water pump housing (61A-44311-01-00), a housing insert cup, the outer plate, and all necessary gaskets, bolts, and hardware for a full replacement.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency and quality.
Shipping speed & cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available for your location.
Warranty & returns?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact our support team with your order details. Returns are accepted within our standard window provided the item is unused and in its original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against 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 quality control.
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