5292712 190°F Thermostat w/ O-Ring for for Cummins 4929644 4929643 3974371

190°F Thermostat with O-Ring for Cummins

This 190°F thermostat with O-Ring is a replacement cooling part for Cummins diesel engines, using OEM cross-reference numbers 4929644, 4929643, and 3974371 to identify fitment. It helps maintain proper engine temperature by regulating coolant flow.

Overview

This 190°F thermostat with O-Ring for Cummins is a thermal control component that opens at 190°F to allow coolant circulation, keeping the engine within its optimal temperature range. The included O-Ring ensures a positive seal within the thermostat housing, reducing the risk of leaks. Designed for Cummins engines that specify these OEM part numbers, this thermostat supports reliable operation in various equipment.

Built For Performance

• Precisely calibrated to open at 190°F for consistent thermal management.
• Comes with an O-Ring to simplify installation and improve sealing.
• Matches OEM dimensions and performance for reliable replacement.
• Built with corrosion-resistant materials for long service life.
• Supports efficient engine warm-up and stable operating temperatures.

Fits These Machines

• for Cummins B-series engines (6.7L and related variants)

On-The-Job Use

• Installed in diesel truck engines for highway and local hauling.
• Used in agricultural tractors and combines powered by Cummins engines.
• Replacement for industrial power units and pumps.
• Applies to bus and RV chassis with compatible Cummins engines.

Specs At A Glance

Good To Know

Q: Will this thermostat fit my Cummins engine? A: It is designed for Cummins engines that use the listed OEM part numbers, so verify your current thermostat's part number or engine serial number before ordering.

Q: Do I need a separate gasket? A: The included O-Ring serves as the sealing element, but you should inspect the housing surface for damage and use the correct coolant for your engine type.

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