Thermostat Kit for Mercury Mariner 40-60 HP 110F 3 Cyl 850055A2 59078A2 13141

This Thermostat Kit is a replacement thermostat assembly compatible with Mercury Mariner 40-60 HP 3-cylinder outboard engines and matches OEM Part# 850055A2, 59078A2, 13141.

Product Overview

This thermostat kit regulates engine temperature for Mercury Mariner 40-60 HP outboard motors. It ensures optimal operating temperature for 3-cylinder engines. Designed as a direct replacement, it restores cooling system performance.

Key Features & Performance

• Precision-engineered to open at 110°F for efficient cooling
• Includes gasket and seals for a complete installation
• Corrosion-resistant materials for marine environment
• Direct fit replacement for Mercury Mariner 40-60 HP 3-cylinder models
• Meets OEM specifications for reliable performance

Fitment & Compatibility

• Mercury Mariner 40 HP (3-cylinder)
• Mercury Mariner 50 HP (3-cylinder)
• Mercury Mariner 60 HP (3-cylinder)

Common Uses

• Replacing worn or stuck thermostats in Mercury Mariner outboard engines
• Restoring proper engine temperature regulation for improved performance
• Routine maintenance during cooling system overhaul

Technical Specifications

• Part Number(s): 850055A2, 59078A2, 13141
• Temperature Rating: 110°F
• Engine Type: 3-cylinder

Frequently Asked Questions

Q: What is the opening temperature of this thermostat? A: This thermostat opens at 110°F to regulate engine temperature for optimal performance.

Q: Is this kit compatible with Mercury 40 HP 4-stroke? A: This kit is designed for 3-cylinder Mercury Mariner outboards; verify your engine's cylinder count before purchase.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.