Volvo Penta Thermostat – 160°F (71°C), Fits 4.3L–8.2L Stern-Drive Engines

Product Details

This 160°F (71°C) thermostat is designed for Volvo Penta stern-drive and outdrive applications. It is listed for 4.3L, 5.0L, 5.7L, 5.8L, 7.4L, 8.1L, and 8.2L Volvo Penta engines across the applicable model ranges.

Use this thermostat as a replacement for the listed Volvo Penta references when the part number and cooling-system configuration match your original component. The thermostat is intended to help regulate engine operating temperature and maintain proper cooling-system performance.

• 160°F (71°C) operating-temperature rating.
• For Volvo Penta stern-drive and outdrive applications.
• Fits listed 4.3L through 8.2L engine families, including 5.8L, 7.4L, and 8.2L applications.
• Sold as one thermostat; verify the sealing arrangement and housing configuration before installation.

Part Number References

The following manufacturer and aftermarket references are associated with this thermostat listing. Number co-occurrence does not replace verification against the engine and cooling-system configuration.

Engine Compatibility

This thermostat is listed for the following Volvo Penta engine displacements and model coverage. “All Models” refers to the company fitment listing; always confirm the exact engine identification and cooling-system configuration before ordering.

Technical Specifications

Product Type

Thermostat

Application

Volvo Penta stern-drive and outdrive engines

Temperature Rating

160°F (71°C)

Compatible Engine Families

4.3L, 5.0L, 5.7L, 5.8L, 7.4L, 8.1L, and 8.2L

Installation

Replacement installation in the original thermostat housing

What’s in the Box

• 1 × 160°F (71°C) thermostat

Important: The company listing identifies this product as a single thermostat. A separate gasket, sealing ring, or other installation hardware should not be assumed unless it is included with the specific package supplied.

Installation Notes

1. Allow the engine to cool completely before beginning work.
2. Disconnect the battery and follow the engine manufacturer’s safety procedures.
3. Drain or lower the coolant level as required before removing the thermostat housing.
4. Remove the housing and note the orientation of the existing thermostat.
5. Clean the mating surfaces and inspect the housing, sealing surfaces, and related components.
6. Install the replacement thermostat in the correct orientation.
7. Install the correct new seal or sealing ring for your engine and housing; it is not included unless specifically supplied with the package.
8. Reinstall the housing and tighten fasteners to the manufacturer’s specified torque.
9. Reconnect hoses, refill the cooling system with the correct coolant, and bleed air as required by the service procedure.
10. Run the engine, allow it to reach operating temperature, and check carefully for leaks or abnormal temperature readings.

Troubleshooting & FAQ

Safety & Important Information

• Never open a hot or pressurized cooling system.
• Confirm the original thermostat temperature rating, dimensions, housing, and sealing arrangement before installation.
• Do not rely on engine displacement alone when multiple cooling-system configurations are available.
• This is a replacement component and is not represented as a Volvo Penta-branded OEM product.
• Professional installation is recommended when the correct service procedure or coolant requirements are uncertain.

About Sea Sierra

• Marine Replacement Parts — Parts selected for common marine engine and stern-drive service applications.
• Fitment-Focused Listings — Product references and engine coverage are provided to support part-number verification.
• Practical Service Support — Confirm your original component and installation requirements before ordering.