Water Pump Repair Kit – Fits Yamaha F115 Outboard (Replaces 68V-W0078-00-00)

Water Pump Repair Kit – Fits Yamaha F115 Outboard (Replaces 68V-W0078-00-00)

This water pump repair kit provides a complete set of components to rebuild your water pump assembly. It is designed for Yamaha F115 4-stroke outboard engines from 2002 and newer.

This kit serves as a direct replacement for several OEM and aftermarket part numbers, ensuring a precise fit and reliable performance. All components are manufactured in Italy to meet or exceed OEM specifications.

• Installation Method: Direct replacement
• Compatibility: Yamaha F115 (4-Stroke, 2002–Current)
• Kit Contents: Includes all internal components (Does not include the housing)

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Water Pump Repair Kit (Replaces 68V-W0078-00-00)
• Note: This kit includes all necessary components to rebuild the water pump except for the housing.

Installation Guide

1. Disconnect the negative battery cable and remove the engine cowling.
2. Place a drain pan under the lower unit and remove the gear lube drain screw to empty the oil.
3. Remove the bolts that secure the lower unit (gearcase) to the upper part of the engine.
4. Carefully slide the lower unit down and away from the engine.
5. Locate the water pump housing on top of the gearcase and remove its mounting bolts.
6. Lift the old water pump housing, impeller, and wear plate off the driveshaft. Note their orientation.
7. Clean the mating surfaces on the gearcase and driveshaft.
8. Install the new components from the kit in the reverse order of removal, ensuring the impeller key is in place.
9. Lightly grease the new impeller and housing interior before reassembly.
10. Re-install the lower unit, making sure the driveshaft, shift shaft, and water tube align correctly.
11. Refill the gearcase with the manufacturer-specified gear lube.
12. Reconnect the battery, start the engine using a water supply, and confirm a steady stream of water from the tell-tale outlet.

Troubleshooting & FAQ

Q: How do I confirm this fits my F115 engine?

A: This kit is confirmed to fit Yamaha F115 outboard models from 2002 to the current year. To be certain, cross-reference your part number with one of the direct replacements: Yamaha 68V-W0078-00-00, Mallory 9-48611, or Sierra 18-3442.

Q: What is the difference between this kit and one with a housing?

A: This kit contains all the essential internal parts (impeller, gaskets, wear plate, etc.) needed to rebuild your existing water pump. You only need to purchase a kit that includes the housing if your current housing is cracked, warped, scored, or heavily corroded.

Q: What are the signs of a failing water pump?

A: The most common indicators of a failing water pump are a weak or non-existent water stream from the engine's tell-tale outlet, frequent engine overheating alarms, or discovering a dry, cracked, or brittle impeller during a visual inspection.

Q: How often should I replace my water pump impeller?

A: As a general maintenance guideline, you should inspect the impeller annually and plan to replace it every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can vary based on usage and water conditions (e.g., saltwater vs. freshwater).

Q: OEM vs. Aftermarket?

A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?

A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?

A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.