Water Pump Impeller Repair Kit – Fits Yamaha F115 4-Stroke Outboard (Replaces 68V-W0078-00-00)

Water Pump Impeller Repair Kit – Fits Yamaha F115 4-Stroke Outboard (Replaces 68V-W0078-00-00)

This water pump impeller repair kit provides all the necessary components for servicing the lower unit water pump on Yamaha 4-Stroke outboard engines from 75 HP to 115 HP (2002 and newer). It is designed to restore cooling system performance and prevent engine overheating.

This kit is a direct replacement for Yamaha OEM part numbers 68V-W0078-00-00, 68V-W0078-01-00, and 68V-W0078-02-00, as well as aftermarket equivalents like Sierra 18-3442 and Mallory 9-48611.

• Complete Kit: Includes the impeller, housing insert, plate, gaskets, O-rings, and all required hardware.
• Direct Replacement: Engineered to meet or exceed OEM specifications for a direct fit.
• High-Quality Materials: Constructed from marine-grade materials for durability and reliable performance in saltwater and freshwater environments.

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 Impeller (6E5-44352-00-00)
• 1 x Water Pump Housing Insert Cup (61A-44322-01-00)
• 1 x Water Pump Base Outer Plate (68V-44323-00-00)
• 1 x Water Pump Gasket (6E5-44315-00-00)
• 1 x O-Ring (93210-37160-00)
• 1 x O-Ring (93210-86M38-00)
• 1 x Impeller Key (90280-04M05-00)
• 2 x Dowel Pins (93606-12019-00)
• 4 x Bolts (91290-08045-00)
• 4 x Washers (90209-08M02-00)

Installation Guide

Professional installation is recommended. The following are general steps for replacing the water pump assembly. Always consult your service manual for detailed instructions and torque specifications.

1. Disconnect the battery and shift the outboard into neutral.
2. Drain the gearcase lubricant from the lower unit.
3. Remove the bolts securing the lower unit to the upper casing and carefully lower it.
4. Remove the bolts on the water pump housing to access the old impeller. Note the orientation of the old parts.
5. Clean the housing and surrounding area, removing any old gasket material or debris.
6. Install the new base plate gasket, outer plate, insert cup, and gaskets.
7. Slide the new impeller onto the drive shaft, ensuring the key is in place and the vanes are oriented correctly (typically clockwise).
8. Replace the housing, O-rings, and bolts, tightening them to the manufacturer's specified torque.
9. Reinstall the lower unit, ensuring the driveshaft, shift shaft, and water tube are properly aligned.
10. Refill the gearcase with new lubricant and test the engine using a water supply (flusher) to confirm proper water flow.

Troubleshooting & FAQ

How do I confirm this kit fits my engine?

First, check your engine model and year against the "Compatible Engine Models" table above. We strongly recommend using the linked Yamaha Serial Number Guide to verify your engine's details. Cross-referencing the part number stamped on your old components with our "Part Number Cross-Reference" table is the best way to ensure an exact match.

Does this fit the Yamaha F130 model?

While one of our sources indicates compatibility with the F130 (2021–Up), this is not confirmed across all OEM documentation. We advise F130 owners to visually inspect their existing water pump components and part numbers before ordering to guarantee a match.

What are the signs of a failing water pump impeller?

Common symptoms include the engine overheating at idle or low speeds, a weak or inconsistent stream of water from the "tell-tale" outlet, or a complete lack of water flow. The overheat alarm may also sound.

How often should I replace the water pump impeller?

As a critical preventative maintenance item, most marine mechanics recommend replacing the impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can be shorter if you frequently operate in sandy or silty water.

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.