Thermostat Kit with O-Ring 3831426 For Volvo Penta 4.3 5.0 5.7 8.1 L V6 V8

Thermostat Kit with O-Ring for Volvo Penta

This thermostat kit with O-ring for Volvo Penta replaces OEM part number 3831426 and helps regulate engine coolant temperature in Volvo Penta 4.3, 5.0, 5.7, and 8.1L V6/V8 marine engines.

Overview

This thermostat kit with O-ring for Volvo Penta is a cooling system component designed for marine engines using the 3831426 OEM reference. The thermostat kit is intended for Volvo Penta 4.3, 5.0, 5.7, and 8.1L V6/V8 engines and includes the thermostat and O-ring needed for replacement. It helps maintain proper operating temperature and supports consistent coolant flow in marine cooling systems.

Built For Performance

• Replaces OEM part number 3831426 for Volvo Penta cooling systems
• For Volvo Penta 4.3, 5.0, 5.7, and 8.1L V6/V8 engines
• Includes thermostat and O-ring in one kit
• Supports proper coolant flow and engine temperature regulation
• Designed for marine raw-water and closed-cooling systems
• Direct replacement for a worn or failed thermostat

Fits These Machines

• for Volvo Penta 4.3L V6
• for Volvo Penta 5.0L V8
• for Volvo Penta 5.7L V8
• for Volvo Penta 8.1L V8

On-The-Job Use

• Replacing a failed or stuck-closed thermostat in marine engines
• Routine cooling system maintenance for stern drive and inboard boats
• Restoring consistent coolant flow after overheating events
• Used by marine mechanics during cooling system service

Specs At A Glance

Good To Know

Q: What is the OEM part number for this thermostat kit? A: The OEM cross-reference is 3831426, and this kit includes the thermostat and O-ring.

Q: Will this fit my engine? A: This thermostat kit is designed for Volvo Penta 4.3, 5.0, 5.7, and 8.1L V6/V8 engines, but confirm your engine's serial number before ordering.

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