Part Number: 710-23-8M0214947
Mercury 23-8M0214947 Thermostat Housing Sleeve
Maintain proper cooling system operation with the Mercury 23-8M0214947 Thermostat Housing Sleeve. Designed as a genuine OEM replacement, this sleeve helps ensure proper thermostat positioning and coolant flow within the thermostat housing assembly on compatible Mercury and MerCruiser marine engines.
The thermostat housing sleeve plays an important role in directing coolant flow and supporting proper thermostat operation. A damaged, corroded, or worn sleeve can affect cooling system efficiency, create improper thermostat seating, or contribute to inconsistent engine temperatures. Replacing worn cooling system components helps maintain dependable engine performance and long-term reliability.
Manufactured to Mercury Marine factory specifications, the 23-8M0214947 sleeve is built for durability in demanding marine environments where heat, vibration, and moisture are constant factors. Designed as a direct-fit replacement, it installs easily and restores proper cooling system function.
Common Engine Fitments
The Mercury 23-8M0214947 thermostat housing sleeve is commonly used on select MerCruiser and Mercury Marine engines, including:
- MerCruiser 4.3L MPI
- MerCruiser 5.0L MPI
- MerCruiser 5.7L MPI
- MerCruiser 350 MAG
- MerCruiser 377 MAG
- MerCruiser 6.2L MPI
These engines are frequently found in:
- Sea Ray sport boats and cruisers
- Chaparral SSi and Signature series
- Four Winns Horizon models
- Bayliner VR and Ciera boats
- Crownline bowriders
- Regal sport boats and cruisers
The 23-8M0214947 sleeve is commonly used in thermostat housing assemblies on freshwater and closed-cooling MerCruiser engine systems where proper coolant routing is critical for maintaining stable operating temperatures.
Fitment can vary depending on engine serial number and thermostat housing configuration, so confirming compatibility with part number 23-8M0214947 before ordering is recommended.
Key Features
- Genuine Mercury Marine OEM thermostat housing sleeve
- Helps maintain proper thermostat positioning and coolant flow
- Supports reliable cooling system performance
- Designed for MerCruiser and Mercury Marine engines
- Marine-grade construction for durability and long service life
- Direct-fit replacement for straightforward installation
Why Replace a Thermostat Housing Sleeve?
Cooling system components can wear or corrode over time due to heat cycles and coolant exposure. Replacing damaged sleeves helps ensure proper thermostat function, maintain stable engine temperatures, and reduce the risk of cooling system issues.
If you’re servicing a compatible MerCruiser-powered boat, the Mercury 23-8M0214947 thermostat housing sleeve delivers the OEM-quality fit and dependable cooling system performance your engine was designed for.