Yamaha - Gear Pump Assembly - Engine Lubrication Component - 6C5-43830-10-00

Overview

When it comes to engine life, oil flow is everything, and this gear pump is what keeps it moving. It pushes oil through the system under pressure so internal parts stay lubricated and protected. When one starts to weaken, you’ll notice it in noise, heat, or warning signs that something’s not right. I’ve seen engines saved—and lost—based on whether this part was doing its job.

Key Features

• Consistent Oil Pressure – Maintains steady lubrication throughout the engine.

• Precision Gear Operation – Uses internal gears to deliver reliable oil flow under load.

• OEM Fit Accuracy – Matches Yamaha factory specs for proper installation and function.

• Heavy Duty Construction – Built to handle heat, pressure, and continuous operation.

Engine & Boat Compatibility

Verify compatibility with your specific Yamaha outboard model and part number before installation.

FAQs

Q1: What are signs this gear pump is failing?
A: Low oil pressure warnings, engine noise, or increased operating temperature.

Q2: Can a bad oil pump damage the engine?
A: Yes, lack of proper lubrication can lead to serious internal damage.

Q3: Should I replace this during major engine work?
A: It’s a good idea if there are any signs of wear or oil pressure issues.

Q4: Does this require priming before startup?
A: Yes, proper priming is important to avoid running the engine dry.

Q5: Is installation difficult?
A: It requires engine access and experience, especially for proper alignment.