Water Pump Impeller Kit with Housing – Fits Yamaha 4-Stroke 75-115 HP Outboards (Replaces 68V-W0078-00)
Water Pump Impeller Kit with Housing – Fits Yamaha 4-Stroke 75-115 HP Outboards (Replaces 68V-W0078-00) is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller Kit with Housing – Fits Yamaha 4-Stroke 75-115 ...
Water Pump Impeller Kit with Housing – Fits Yamaha 4-Stroke 75-115 HP Outboards (Replaces 68V-W0078-00) is backordered and will ship as soon as it is back in stock.
Product Details
This complete aftermarket Water Pump Impeller Kit with Housing is designed for servicing the water pump on select Yamaha 4-stroke outboard motors from 75 to 115 HP. Catalog applications include Yamaha F75, F90, F115, LF115, VF90, and VF115 models, with fitment varying by model, year, and configuration.
The kit includes the housing and the water-pump components needed for a standard lower-unit water-pump replacement. It is associated with Yamaha OEM reference 68V-W0078-00. Yamaha reference 68V-W0078-00-00 identifies a related water-pump repair-kit configuration without the housing and should not be used as the package description for this housing-included kit.
- Complete replacement kit with water-pump housing.
- For select Yamaha 4-stroke 75-115 HP outboards.
- Neoprene impeller for marine cooling-system service.
- Includes the housing, impeller, wear plate, insert cup, gasket, O-rings, dowel pins, key, and fastening hardware shown in the package list.
- Compare the existing water-pump assembly and engine model or serial information before ordering.
Part Number Matrix
These references are provided for identification and cross-reference purposes. Part-number appearance in a catalog does not by itself confirm fitment for every engine configuration.
| Brand | Part Number | Application or package note |
|---|---|---|
| Yamaha | 68V-W0078-00 | Reference for the complete water-pump kit with housing. |
| Yamaha | 68V-W0078-00-00 | Related water-pump repair-kit reference; commonly listed without housing. |
| Yamaha | 68V-W0078-01-00 | Related water-pump kit reference listed without housing in the GLM catalog. |
| Sierra | 18-3523-1 | Aftermarket water-pump kit reference associated with the housing-included configuration. |
| Sierra | 18-3442 | Aftermarket water-pump repair-kit reference; verify housing contents separately. |
| Mallory | 9-48611 | Aftermarket cross-reference reported for this water-pump service application. |
| GLM | 12296 | Complete water-pump kit reference for the 68V-W0078-00 configuration. |
| GLM | 12067 | Water-pump kit without housing; not the same package configuration as this listing. |
Engine & Model Compatibility
Use the table as a guide and confirm the complete engine model, year, and serial-number range before ordering. The same reference can occur in different diagrams and model-year configurations.
| Brand | Model family | Rated HP | Stroke | Catalog examples | Notes |
|---|---|---|---|---|---|
| Yamaha | F75 | 75 | 4-Stroke | F75LB, F75XB, selected 2017-2023 applications | Confirm the exact model code and serial range. |
| Yamaha | F90 | 90 | 4-Stroke | F90JB, F90LB, F90XB, selected 2017-2023 applications | Confirm the exact model code and serial range. |
| Yamaha | VF90 | 90 | 4-Stroke | VF90LA, VF90XA, selected 2021-2023 applications | Verify the water-pump reference for the engine year. |
| Yamaha | F115 | 115 | 4-Stroke | F115, selected 2002-2023 applications | Model suffix, year, and lower-unit configuration must match. |
| Yamaha | LF115 | 115 | 4-Stroke | LF115, selected 2002-2023 applications | Verify the exact model and serial-number range. |
| Yamaha | VF115 | 115 | 4-Stroke | VF115LA, VF115XA, selected 2015-2023 applications | Verify the exact model and serial-number range. |
Technical Specifications
- Product Type
- Water pump impeller repair kit with housing
- Application
- Select Yamaha 4-stroke outboards, primarily 75-115 HP applications
- Installation
- Lower-unit water-pump service replacement
- Impeller Material
- Neoprene
- Housing Material
- Nylon housing with stainless-steel insert and plate components
- Package Dimensions
- 165 × 124 × 96 mm (6.5 × 4.88 × 3.78 inches)
- Package Weight
- 0.64 kg (1.42 lb)
What's in the Box
- 1 × Water pump housing
- 1 × Water pump wear plate
- 1 × Water pump insert cup
- 1 × Neoprene impeller
- 1 × Impeller key
- 1 × Water-pump gasket
- 2 × O-rings
- 4 × Bolts or equivalent supplied fastening hardware
- 2 × Dowel pins
Component markings and supplied hardware can vary by production batch. Confirm the parts against the included kit and your original assembly before installation.
Installation Notes
- Disconnect the battery and secure the outboard according to the manufacturer's service instructions.
- Remove the propeller and lower unit as required to access the water-pump assembly.
- Remove the old housing, impeller, plate, insert cup, gasket, O-rings, key, and related hardware. Record the orientation of each component.
- Clean the mating surfaces and remove all old gasket material and debris.
- Install the supplied gasket, wear plate, insert cup, key, and impeller in the correct order.
- Lubricate the impeller lightly with clean water or a suitable marine-service lubricant. Do not install a dry impeller.
- Lower the housing over the impeller while turning the driveshaft in the manufacturer's specified direction.
- Install the supplied O-rings, dowel pins, and fastening hardware. Tighten fasteners to the torque specified in the applicable Yamaha service manual.
- Reinstall the lower unit and propeller, then refill the gearcase with the correct lubricant.
- Run the engine in an appropriate test tank or in water and confirm a steady tell-tale stream without overheating.
Troubleshooting & FAQ
How do I confirm fitment?
Compare your engine's complete Yamaha model code, horsepower, year, serial-number range, and existing water-pump reference with the compatibility information above. Also compare the housing, plate, insert cup, impeller, and bolt layout with the original assembly.
Does this kit include the housing?
Yes. This listing is for the housing-included configuration. Related references such as 68V-W0078-00-00, 68V-W0078-01-00, Sierra 18-3442, and GLM 12067 may describe repair-kit configurations without a housing and should not be used to infer the package contents of this listing.
What are signs of a failing impeller?
Common symptoms include overheating at idle or low speed, a weak or intermittent tell-tale stream, and an impeller that is cracked, brittle, damaged, or permanently set in the vane position.
How often should the impeller be replaced?
Inspect the water-pump system at the interval specified by your engine service manual. Replacement may be needed sooner after operation in saltwater, sand, silt, or other abrasive conditions.
Is this an OEM Yamaha part?
No. This is an aftermarket replacement kit intended to service compatible Yamaha outboards. Yamaha and other manufacturer part numbers are shown only as identification and cross-reference references.
Safety & Important Information
- Verify the engine model, year, serial range, and original water-pump configuration before ordering.
- Do not rely on horsepower alone to confirm fitment.
- Use the applicable service manual for removal procedures, torque values, sealants, and final testing.
- Professional installation is recommended when lower-unit service experience or the correct tools are unavailable.
About Sea Sierra
- Marine replacement parts selected for practical watercraft service applications.
- Clear cross-reference information to help customers compare compatible assemblies.
- Manufacturer-direct value for routine maintenance and repair needs.
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