Yamaha - Outer Plate, Cartridge - Water Pump Component - 6CB-44323-00-00

Overview

If you’ve ever pulled apart a water pump and seen grooves worn into the plate, you already know how important this piece is. The outer plate sits right under the impeller, and it takes constant contact every time the motor’s running. Once it’s worn, you lose efficiency even if the impeller is new. Swapping it out during service keeps water flow strong and your cooling system doing its job right.

Key Features

• Smooth Impeller Surface – Provides a clean contact surface for proper impeller rotation.

• Maintains Pump Efficiency – Helps ensure strong and consistent water flow through the system.

• OEM Fit Accuracy – Matches Yamaha factory specs for correct thickness and alignment.

• Corrosion Resistant Build – Designed to handle constant water exposure and harsh marine use.

Engine & Boat Compatibility

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

FAQs

Q1: How do I know this plate needs replacing?
A: Look for scoring, grooves, or uneven wear on the surface.

Q2: Can I reuse this plate with a new impeller?
A: It’s not recommended if there’s any visible wear—it can reduce pump performance.

Q3: Will a worn plate affect cooling?
A: Yes, it can reduce water flow and lead to higher engine temperatures.

Q4: Should I replace this during every pump service?
A: It depends on wear, but it’s often replaced to maintain full efficiency.

Q5: Is installation difficult?
A: No, it’s simple when you’re already servicing the water pump.