2X 23-806922 Thermostat Housing Sleeve holder housing Mercruiser 4.3 5.0 5.7 7.4

Thermostat Housing Sleeve for Mercruiser

This thermostat housing sleeve for Mercruiser engines holds the thermostat in place and cross-references OEM part number 23-806922, with two pieces included.

Overview

This thermostat housing sleeve is a direct replacement for Mercruiser engines, ensuring the thermostat stays securely seated. It fits 4.3, 5.0, 5.7, and 7.4 liter models, providing a reliable seal and proper coolant flow. Ideal for boat owners and marine mechanics servicing Mercruiser stern drives.

Built For Performance

• Precision-machined to match OEM specifications
• Constructed from corrosion-resistant materials
• Ensures proper thermostat seating
• Prevents coolant bypass and leaks
• Includes two sleeves for convenient replacement

Fits These Machines

• for Mercruiser 4.3
• for Mercruiser 5.0
• for Mercruiser 5.7
• for Mercruiser 7.4

On-The-Job Use

• Replacing worn or cracked thermostat housing sleeves
• Used during cooling system maintenance on Mercruiser engines
• Helps maintain proper engine temperature in saltwater or freshwater
• Essential for marine mechanics servicing stern drives
• Used to secure thermostats in high-performance marine engines

Specs At A Glance

Good To Know

Q: How do I know if this sleeve fits my Mercruiser? A: This sleeve fits Mercruiser 4.3, 5.0, 5.7, and 7.4 liter engines, but always verify your engine serial number before ordering.

Q: Can I use this with aftermarket thermostats? A: Yes, it is designed to hold standard thermostats used in Mercruiser cooling systems, but confirm compatibility with your specific thermostat.

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