Water Pump Impeller Kit – Fits Yamaha 4-Stroke 75-115 HP (Replaces 68V-W0078-00-00, 68V-W0078-01-00, 68V-W0078-02-00)

Water Pump Impeller Kit – Fits Yamaha 4-Stroke 75-115 HP

This water pump impeller repair kit is designed for a direct fit on a range of Yamaha 4-Stroke outboard engines, including F75, F80, F90, F100, F115, LF115, and VF115 models manufactured between 2000 and 2017. It serves as an aftermarket replacement for multiple OEM part numbers, ensuring comprehensive compatibility.

This kit provides a direct replacement for Yamaha part numbers 68V-W0078-00-00, 68V-W0078-01-00, 68V-W0078-02-00, as well as Sierra 18-3523-1, 18-3523, 18-3442, and GLM Marine 12067.

• Engineered for a direct OEM replacement fit.
• Includes all necessary components for a complete overhaul: impeller, gaskets, O-rings, key, and hardware.
• Constructed with marine-grade materials to resist corrosion and wear.

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 (6E5-44352-01-00)
• 1 x Woodruff Key (90280-04M05-00)
• 1 x Water Pump Gasket (6E5-44315-A0-00)
• 1 x Outer Plate, Cartridge (68V-44323-00-00)
• 1 x Cartridge Insert (61A-44322-02-00)
• 2 x Dowel Pin (93606-12019-00)
• 1 x O-Ring (93210-37M67-00)
• 1 x O-Ring (93210-86M38-00)
• 4 x Bolt With Washer (90119-08M14-00)

Installation Guide

1. Disconnect the battery and shift the outboard into neutral.
2. Remove the lower unit by unfastening the mounting bolts.
3. Locate the water pump housing, typically situated on top of the lower unit.
4. Remove the bolts securing the water pump housing cover to access the impeller.
5. Take note of the old impeller's vane orientation before removing it and the Woodruff key.
6. Clean all mating surfaces and install the new gaskets and O-rings provided in the kit.
7. Install the new Woodruff key and slide the new impeller onto the driveshaft, rotating it in the correct direction.
8. Reassemble the water pump housing, ensuring all components are properly seated.
9. Reinstall the lower unit, carefully aligning the driveshaft and shift shaft.
10. Reconnect the battery and test the engine with a water supply to confirm proper cooling system function.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my specific engine?

A: The best way is to check the "Compatible Engine Models" table on this page. Match your engine's model, horsepower, and year with the listed applications. You should also cross-reference your existing part number with those in the "Part Number Cross-Reference" table.

Q: My engine is a Yamaha F80B. Why won't this kit fit?

A: The Yamaha F80B models from 2005-2015 require a different water pump kit, OEM part number 67F-W0078-00-00. This kit (68V-W0078-00-00) is not compatible with that specific engine series.

Q: What are common signs that my water pump impeller needs replacement?

A: Key indicators include the engine overheating at idle or low speeds, a weak or inconsistent stream of water from the tell-tale port, or a brittle, cracked, or deformed impeller found during routine inspection.

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

A: For preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1-2 years, depending on usage (hours) and operating conditions (saltwater vs. freshwater). Frequent use in sandy or silty water may require more frequent replacement.

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.