Water Pump Impeller & Key for Mercury 4/5HP (18-3073, 500325, 9-45611)

Includes: - Water Pump Impeller & Key

Fits Models: - Mercury 4HP, Mercury 5HP

Model Years: - Check fitment before purchase

Submodels: - Applies to listed models

Engine Options: - Compatible with standard engine options

Description: This Water Pump Impeller & Key is designed specifically for Mercury 4HP and 5HP outboard motors. It ensures optimal water flow for engine cooling, preventing overheating and maintaining performance. The part is a direct replacement for OEM part numbers 18-3073, 500325, and 9-45611, ensuring compatibility and reliability.

Features: - Premium-grade construction for durability - Direct replacement for straightforward fitment - Designed to maintain optimal engine cooling - Compatible with specific Mercury outboard models

Part Number: 18-3073