Yamaha – Water Pump Repair Kit | Cooling System | 68V-W0078-00-00

Overview

The Yamaha 68V-W0078-00-00 Water Pump Repair Kit is designed to restore proper cooling system performance in Yamaha F115-series outboard engines. The water pump plays a critical role in circulating cooling water through the engine to regulate operating temperatures. Over time, internal components like the impeller, seals, and gaskets wear down due to heat cycles, friction, and debris in the water.

Replacing the full water pump assembly components with an OEM repair kit helps maintain consistent cooling water flow and protects the engine from overheating. Routine water pump service is an important part of preventative maintenance for Yamaha outboards that see regular use in freshwater or saltwater environments.

Key Features

• Complete Water Pump Service Kit – Includes key components needed to rebuild the water pump assembly.

• Restores Cooling System Performance – Helps maintain proper water circulation through the engine.

• OEM Yamaha Construction – Manufactured to Yamaha specifications for precise fit and dependable reliability.

• Routine Maintenance Solution – Ideal for scheduled service intervals to help prevent cooling system failures.

Engine & Boat Compatibility

• F115 - 2002-Current
• LF115 - 2002-Current
• VF115 - 2014-Current

Why is this prop a strong choice vs. alternatives?

• Designed for Yamaha F115 Platform Engines – Built specifically for Yamaha 115 horsepower four-stroke outboards.

• Complete Pump Service Components – Replaces the internal parts most commonly worn in the cooling system.

• OEM Reliability – Yamaha factory specifications ensure proper fit and long-term durability.

• Helps Prevent Overheating Issues – Maintaining pump performance protects the engine during extended operation.

FAQ

Q: What components are typically included in a water pump repair kit?
A: Most kits include the impeller, pump housing components, seals, gaskets, and hardware needed to rebuild the water pump.

Q: How often should a Yamaha water pump be serviced?
A: Many technicians recommend replacing the impeller and pump components every two to three seasons or around two hundred operating hours.

Q: What happens if the water pump impeller fails?
A: Cooling water flow can drop quickly, which may cause the engine to overheat and trigger warning systems.

Q: Can debris in the water damage the pump?
A: Yes. Sand, silt, and debris can wear the impeller and pump housing over time.

Q: Should the entire pump kit be installed instead of just the impeller?
A: Replacing the full kit during service helps ensure the pump operates at peak efficiency and reliability.

• Supersessions
  68V-W0078-01-00, 68V-W0078-01-00