Mercury Mercruiser Verado 250-400HP Thermostat Kit 892864T04 8M0174561 18-3631

Thermostat Kit for Mercury Verado

This thermostat kit for Mercury Verado outboards regulates engine temperature for 250-400HP models, referencing OEM cross numbers 892864T04, 8M0174561, and 18-3631.

Overview

This thermostat kit for Mercury Verado is a direct replacement for worn factory thermostats. It ensures the engine maintains proper temperature, preventing overheating and improving performance. This thermostat kit fits Verado outboards rated 250-400HP.

Built For Performance

• Precision-machined thermostat opens at the correct temperature
• High-quality brass construction resists corrosion in marine environments
• Includes all necessary gaskets for a secure, leak-free installation
• Engineered for consistent flow under high RPM operation
• Meets OEM specifications for Mercury Verado engines

Fits These Machines

• for Mercury Verado 250HP
• for Mercury Verado 300HP
• for Mercury Verado 350HP
• for Mercury Verado 400HP

On-The-Job Use

• Replacing worn thermostats to prevent overheating
• Maintaining consistent engine temperature during long runs
• Ensuring proper warm-up for optimal performance
• Reducing fuel consumption by efficient thermal management

Specs At A Glance

Good To Know

Q: Will this thermostat kit work on a Mercury Verado 225? A: This kit is designed for 250-400HP models only; check your engine's horsepower rating.

Q: Does it include the thermostat housing? A: It includes the thermostat and gaskets, but not the housing; use your existing housing.

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