Yamaha - Gear Pump Assembly - Lubrication System Component - 62Y-43830-01-00

Overview

Inside the lower unit, proper lubrication is what keeps everything alive, and this pump is right at the center of that. When one starts to wear out, you won’t always notice right away—but over time, gears start taking a beating. I’ve seen units come apart just from poor oil circulation, and it usually traces back here. Keeping a solid gear pump in place helps everything run smoother and last longer.

Key Features

• Consistent Lubrication Flow – Circulates gear oil to protect internal components from wear.
• Genuine Yamaha Fitment – Engineered to match factory lubrication system specifications.
• Precision Gear Design – Ensures steady oil movement under varying operating conditions.
• Durable Internal Construction – Built to handle heat, pressure, and continuous operation.
• Supports Lower Unit Longevity – Helps reduce friction and extend gear life.

Engine & Boat Compatibility

Compatible with select Yamaha outboards using this gear pump assembly. Verify fitment based on your specific engine model.

FAQ

Q: What happens if the gear pump fails?
A: Internal components may not receive proper lubrication, leading to premature wear or damage.

Q: Are there signs of a failing gear pump?
A: Increased gear noise, overheating, or signs of internal wear during inspection.

Q: Can this be replaced without full disassembly?
A: Typically, access requires opening the lower unit.

Q: How often should this part be checked?
A: It’s usually inspected during major service or rebuilds.

Q: Does dirty oil affect the pump?
A: Yes, contaminated oil can cause wear and reduce pump efficiency.

• Supersessions
  CS3-43830-00-00, CS3-43830-01-00, CS3-43830-01-00