Yamaha - Water Pump Impeller - Cooling System Component - F2.5 - 6L5-44352-00-00

Overview

The Yamaha Water Pump Impeller | 6L5-44352-00-00 is one of those parts you stay on top of if you want your small outboard to keep running strong. On engines like the F2.5, even a slight drop in water flow shows up fast with higher temps or weak output. This impeller keeps water moving through the motor, so it’s constantly working every time you run. Swapping it out regularly is an easy way to avoid overheating issues before they start.

Key Features

• Consistent Water Circulation – Keeps cooling water moving through the engine to maintain safe operating temperatures.

• OEM Fit Precision – Designed to match Yamaha water pump housing for proper fit and performance.

• Flexible Blade Design – Maintains efficient pumping action across different engine speeds.

• Durable Material Build – Built to handle heat, friction, and continuous marine use.

Engine & Boat Compatibility

• F2.5 Present

FAQs

Q1: How often should this impeller be replaced?
A: Typically every season or around 100 hours, depending on usage.

Q2: What are signs the impeller is wearing out?
A: Weak water stream, overheating, or inconsistent cooling performance.

Q3: Can running the engine dry damage it?
A: Yes, even a short dry run can damage the impeller blades.

Q4: Is this a common maintenance item?
A: Yes, it’s one of the most important routine maintenance parts for cooling systems.

Q5: Is replacement difficult?
A: It usually requires removing the lower unit, but it’s a straightforward job.

• Engine Application
  • F2.5 - Present