Mercury Mariner Outboard 47-89983T Water Pump Impeller 30 35 40 50 60 70 HP

Water Pump Impeller for Mercury Mariner

This water pump impeller, referencing OEM number 47-89983T, delivers reliable cooling for Mercury Mariner outboard motors from 30 to 70 horsepower. It circulates coolant through the engine block to prevent overheating during operation.

Overview

This water pump impeller is a critical replacement part for Mercury Mariner outboards, ensuring optimal water flow through the cooling system. Designed for 30, 35, 40, 50, 60, and 70 HP models, this impeller maintains proper engine temperature and prevents costly damage from heat buildup.

Built For Performance

• Precision-molded rubber impeller blades for efficient water pumping
• Direct replacement for OEM 47-89983T
• Resists wear and deformation under continuous operation
• Maintains consistent coolant flow at various engine speeds
• Easy to install with standard outboard pump service

Fits These Machines

• for Mercury Mariner 30HP
• for Mercury Mariner 35HP
• for Mercury Mariner 40HP
• for Mercury Mariner 50HP
• for Mercury Mariner 60HP
• for Mercury Mariner 70HP

On-The-Job Use

• Replace worn impellers during routine water pump service
• Used in both fresh and saltwater environments
• Essential for keeping outboard engines cool during long cruises or trolling
• Recommended when overheating symptoms appear

Specs At A Glance

Good To Know

Q: How often should I change this impeller? A: Inspect it annually or every 300 hours, and replace it at the first sign of wear or reduced water flow.

Q: Will this fit my Mercury 40HP two-stroke? A: The 47-89983T is speced for Mercury Mariner 30-70HP outboards, but compatibility varies by serial number, so confirm before ordering.

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