60°C (140°F) Thermostat for Volvo Penta AQ, BB and MD Series Engines

Product Details

This 60°C (140°F) marine engine thermostat is an aftermarket replacement for selected Volvo Penta AQ, BB and MD series engines. It is intended for applications using raw-water cooling and helps regulate engine operating temperature at the specified 60°C (140°F) rating.

Use the Volvo Penta reference numbers and engine-model list below to compare this thermostat with the part being replaced before ordering.

• 60°C (140°F) temperature rating.
• Designed for selected Volvo Penta stern-drive and inboard applications.
• Suitable for the raw-water-cooled applications identified below.
• Aftermarket replacement component; not manufactured by Volvo Penta.

Part Number Matrix

The following Volvo Penta numbers are listed as reference numbers for this replacement thermostat. A part-number match should be confirmed together with the exact engine model and cooling configuration.

Engine & Model Compatibility

This thermostat is listed for the following Volvo Penta engine models. Model listings alone do not replace verification of the original thermostat, cooling system and applicable part number.

Technical Specs

Product Type

Marine engine thermostat

Temperature Rating

60°C (140°F)

Application

Selected Volvo Penta AQ, BB and MD series engines

Cooling System

Raw-water-cooled applications listed above

Product Status

Aftermarket replacement component

Brand Compatibility

Volvo Penta stern-drive and out-drive applications

What's in the Box

• 1 x 60°C (140°F) thermostat

This listing is for the thermostat component only. A gasket, seal, housing or other installation hardware is not confirmed as included unless specifically supplied with your order.

Installation Notes

1. Allow the engine to cool completely before beginning work.
2. Close or isolate the raw-water supply as appropriate for your installation.
3. Remove the thermostat housing cover according to the engine manufacturer's service procedure.
4. Note the orientation of the existing thermostat before removing it.
5. Clean the housing and cover mating surfaces carefully without damaging them.
6. Install the replacement thermostat in the same orientation as the removed part.
7. Use a new gasket or seal only if required by the engine service procedure; no gasket is confirmed as included with this thermostat.
8. Reinstall the housing cover using the manufacturer's specified tightening sequence and torque.
9. Restore the cooling-water supply, run the engine, and check operating temperature and the housing area for leaks.

Troubleshooting & FAQ

Safety & Important Information

• Work only on a completely cool engine and relieve pressure before opening the cooling system.
• Verify the engine model, cooling configuration, reference number and thermostat temperature rating before ordering.
• Do not rely on model-family names alone; variations in equipment and cooling configuration may affect fitment.
• Inspect the housing, sealing surfaces and related cooling components during installation.
• This is an aftermarket replacement component, not an OEM Volvo Penta component.

About Sea Sierra

• Marine replacement parts selected for practical service and maintenance applications.
• Product information organized around reference numbers and engine-model compatibility.
• Support for customers comparing replacement components for marine engines and stern-drive systems.