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)

This water pump repair kit is designed for select Yamaha 4-stroke outboard motors ranging from 50 HP to 115 HP, covering models from approximately 2002 to 2018. It provides a reliable solution for maintaining your engine's cooling system for optimal performance.

This kit serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring a precise fit and restoring functionality. It is engineered to meet or exceed original equipment specifications.

• Complete Maintenance Solution: Includes all necessary components for a full water pump service, such as the housing, impeller, gaskets, plate, and hardware.
• Direct Fit Installation: Designed as a direct OEM replacement for a hassle-free installation process without modifications.
• Quality Manufacturing: Produced in an ISO9002 certified facility with high-quality materials to ensure durability and reliable performance.

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 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)

Explosion Diagram

Installation Guide

1. Safety First: Disconnect the battery cables and disable the ignition system before beginning work.
2. Access the Pump: Remove the lower unit (gearcase) from the outboard motor. This typically requires removing several bolts connecting it to the midsection.
3. Remove Old Pump: Unbolt and carefully lift the old water pump housing from the driveshaft. Note the orientation of the old components.
4. Clean Surfaces: Thoroughly clean the mounting surfaces on the lower unit and driveshaft, removing any old gasket material or corrosion.
5. Install New Components: Place the new gaskets and outer plate onto the lower unit. Install the new impeller key into the driveshaft.
6. Install Impeller: Slide the new impeller onto the driveshaft. Important: Rotate the driveshaft clockwise while pushing the impeller down to correctly set the vanes.
7. Install Housing:_Align the new housing insert cup and place the new housing over the impeller. Apply light pressure and rotate the driveshaft clockwise to help it seat correctly._
8. Final Assembly: Secure the housing with the new bolts and washers, tightening them to the manufacturer's recommended torque specifications.
9. Reinstall Lower Unit: Reattach the lower unit to the outboard motor, ensuring the driveshaft, shift shaft, and water tube are properly aligned.
10. Test Operation: Reconnect the battery. Start the engine using a water supply (flushing muffs) and verify a steady stream of water from the tell-tale outlet.

Troubleshooting & FAQ

How do I confirm this fits my engine?
Review the "Compatible Engine Models" table to find your engine model, HP, and year range. Cross-reference the OEM part numbers listed with your existing part. For Yamaha engines, using the Yamaha Serial Number Guide can help verify your exact model and year.

What are the signs of a failing water pump?
The most common symptoms are a weak or no water stream from the engine's tell-tale outlet, or the engine overheating alarm sounding. During inspection, you may find the impeller has brittle, cracked, or broken vanes.

How often should I replace the water pump kit?
For preventative maintenance, it is recommended to inspect the impeller annually and replace the entire water pump kit every 1 to 2 years, or every 100-200 hours of operation. Service intervals should be shorter in saltwater or silty/sandy conditions.

OEM vs. Aftermarket?
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.

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

What is your warranty and return policy?
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.