Yamaha - Insert Cartridge - Cooling System Component - 682-44322-40-00

Overview

This is one of those parts that doesn’t get much attention until cooling issues start showing up. The insert cartridge plays a role in directing water flow through the lower unit and keeping the cooling system working the way it should. I’ve seen engines overheat just because this piece was worn or not seated right. When it’s in good shape, water flow stays consistent and the engine runs at the right temperature.

Key Features

• Water Flow Control – Helps direct cooling water through the system for proper circulation.
• Genuine Yamaha Fitment – Designed to match factory housing and components precisely.
• Supports Cooling Efficiency – Keeps water moving correctly to prevent overheating issues.
• Durable Marine Construction – Built to handle constant water exposure and engine vibration.
• Direct Replacement Design – Fits in place of the original insert for proper alignment.

Engine & Boat Compatibility

Compatible with select Yamaha outboards using this insert cartridge. Verify fitment based on your specific engine model.

FAQ

Q: What happens if this insert cartridge is worn or damaged?
A: It can disrupt water flow and lead to reduced cooling performance or overheating.

Q: Is this part involved in the water pump system?
A: Yes, it works alongside the water pump components to guide water properly.

Q: Can this cause overheating if installed incorrectly?
A: Yes, improper installation can affect water flow and cooling efficiency.

Q: Is this something I should replace during water pump service?
A: It’s a good idea to inspect it and replace if there’s any wear or damage.

Q: Does saltwater use affect this part?
A: Over time, buildup and corrosion can impact performance if not maintained.