EMP Water Pump Kit with Base for Mercury Outboard, Replaces Mercury Marine 46-42579A4

This EMP Water Pump Kit with Base is a complete water pump replacement kit for Mercury outboard motors, designed to restore proper cooling system function. The kit includes the water pump base along with the components needed to replace a worn or failing pump assembly, helping prevent overheating caused by reduced water flow through the cooling system. It is built as a direct equivalent to Mercury Marine 46-42579A4, so it installs in place of that OEM part without modification. Marine mechanics and boat owners performing routine maintenance or addressing an overheating outboard can use this kit to replace the water pump housing and base together rather than sourcing separate components. Because water pump wear is a common maintenance item on outboard motors, keeping a cross-referenced replacement kit on hand simplifies servicing and reduces downtime. This kit is cataloged under EMP part number 46-13171 for easy reordering.

Specifications

• Brand: EMP
• Manufacturer Part Number: 46-13171
• Product Type: Water Pump Kit with Base
• Fits: Mercury Outboard
• UPC: 840080496603
• Weight: 0.891 pounds

Fitment

Mercury Outboard

Replaces (OEM)

• Mercury Marine 46-42579A4

Frequently Asked Questions

What does the EMP 46-13171 water pump kit include? The EMP 46-13171 kit is a water pump kit with base, providing the pump housing and base needed to replace a Mercury outboard water pump assembly.

Is EMP 46-13171 the same as Mercury Marine 46-42579A4? Yes, EMP 46-13171 is a direct replacement for Mercury Marine 46-42579A4 and installs in its place.

What outboard motors does this water pump kit fit? This water pump kit with base, EMP part number 46-13171, is designed to fit Mercury outboard motors.

How much does the EMP 46-13171 water pump kit weigh? The EMP 46-13171 water pump kit with base weighs 0.891 pounds.

Does this kit come with a base plate? Yes, the EMP 46-13171 kit is a water pump kit with base, so the base plate is included along with the pump housing components.

Is EMP 46-13171 an OEM Mercury Marine part or aftermarket? EMP 46-13171 is an aftermarket water pump kit manufactured to replace Mercury Marine 46-42579A4.

What UPC is associated with the EMP 46-13171 water pump kit? The EMP 46-13171 water pump kit with base carries UPC 840080496603.

Why would I need to replace my outboard's water pump kit? A worn water pump reduces cooling water flow to an outboard motor, and replacing it with a kit like the EMP 46-13171 helps restore proper engine cooling.

Can I use EMP 46-13171 to replace just the impeller, or is it a full pump kit? EMP 46-13171 is a full water pump kit with base rather than an impeller-only part, covering the pump housing and base assembly.

What category of part is EMP 46-13171 listed under? EMP 46-13171 is categorized as a Mercury outboard water pump and impeller component, specifically a water pump kit with base.