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This Water Pump Impeller Kit is a replacement impeller kit compatible with Mercury outboard motors (30-70 HP models) and matches OEM Part# 46-77177A3, 18-3324.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
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Product Overview
This water pump impeller kit is designed to replace the worn impeller in your Mercury outboard motor. The kit includes the impeller and necessary gaskets, ensuring proper water circulation to prevent overheating. Ideal for boaters and mechanics maintaining Mercury outboards from 30 to 70 horsepower.
Key Features & Performance
- High-quality rubber impeller for durable performance
- Includes gasket and O-ring for a complete rebuild
- Direct fit replacement for OEM part numbers 46-77177A3 and 18-3324
- Prevents engine overheating by maintaining proper coolant flow
- Easy installation with basic hand tools
Fitment & Compatibility
- Mercury 30 HP outboard motors
- Mercury 35 HP
- Mercury 40 HP
- Mercury 45 HP
- Mercury 50 HP
- Mercury 60 HP
- Mercury 65 HP
- Mercury 70 HP
Common Uses
- Replacing worn water pump impeller in Mercury outboard motors
- Routine maintenance during water pump rebuild
- Boat engine cooling system repair
Technical Specifications
- Part Number(s): 46-77177A3, 18-3324
Frequently Asked Questions
Q: Is this kit compatible with other outboard brands? A: This impeller kit is specifically designed for Mercury outboard motors listed; it may not fit other brands without modification.
Q: Does this kit include all necessary parts? A: Yes, the kit includes the impeller, gasket, and O-ring for a complete water pump rebuild.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.