Water Pump Impeller Kit Mariner Outboard (9.9 15 HP) 18-3148 46-84277M 46-84277T

Water Pump Impeller Kit for Mariner

This water pump impeller kit for Mariner outboards provides a complete cooling system replacement, referencing OEM cross-reference numbers 18-3148, 46-84277M, and 46-84277T.

Overview

This water pump impeller kit is designed for Mariner 9.9 and 15 HP outboard engines, ensuring reliable water flow to prevent overheating. It includes the impeller and necessary gaskets for a full rebuild. The water pump impeller kit is a direct replacement for worn factory parts.

Built For Performance

• Precision-molded impeller for consistent water flow
• Includes gaskets and seals for a complete repair
• Corrosion-resistant materials for marine environments
• Direct replacement for OEM part numbers 18-3148, 46-84277M, and 46-84277T
• Tested for durability in saltwater and freshwater

Fits These Machines

• for Mariner 9.9 HP outboard
• for Mariner 15 HP outboard

On-The-Job Use

• Replaces worn impellers in Mariner outboard cooling systems
• Ensures proper water flow during long trolling sessions
• Maintains engine temperature in both saltwater and freshwater
• Suitable for routine maintenance and emergency repairs

Specs At A Glance

Good To Know

Q: Is this a genuine Mariner part? A: No, this is an aftermarket replacement kit designed to meet or exceed OEM specifications.

Q: How often should I replace the impeller? A: Typically every 2-3 seasons or annually if used in sandy or muddy water.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.