Motorad 2026-180 Engine Coolant Thermostat

Motorad High Flow 180°F Thermostat

The Motorad High Flow 2026-180 engine coolant thermostat is built for precise coolant temperature control in demanding cooling systems. It uses OEM-quality materials and OE-supplier manufacturing standards to deliver consistent response in applications such as Cadillac DeVille, Fleetwood, and Eldorado.

The High Flow line focuses on efficient coolant movement and stable temperature regulation. This thermostat features a copper case and wax compound for quick reaction to coolant temperature changes, along with an offset design, air relief valve, and OEM-style seals where applicable.

Key Features

• 180°F thermostat temperature rating for controlled engine operating temperature
• Copper case and wax compound for rapid response to coolant temperature changes
• High Flow design for demanding automotive cooling systems
• Offset design with air relief valve
• Jiggle pin weep hole included
• Sealing flange outside diameter: 2.12 in.
• Bypass diameter: 0.93 in.
• Bypass length: 1.04 in.
• Flange thickness: 0.06 in.
• No gasket or seal included

Detailed Description

Motorad 2026-180 is an engine coolant thermostat engineered to OEM specifications and processes for direct temperature regulation in compatible cooling systems. The 180°F calibration supports stable warm-up and operating temperature control, while the copper case and wax element help the thermostat react quickly as coolant temperature changes. This makes it a practical choice for classic Cadillac cooling service where consistent thermal control matters.

Compatible With 1968-1984 Cadillac Commercial Chassis, 1968-1984 Cadillac Fleetwood, 1968-1981 Cadillac DeVille, 1968-1978 Cadillac Eldorado, 1980-1981 Cadillac Eldorado, and 1980-1981 Cadillac Seville. This part cross-references Carlson 15458 and Dorman - Autograde 65268 for the same application. Motorad 2026-180 is also referenced by part numbers 92026180 and P15458.

What It Helps Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuation in the cooling system
• Delayed coolant flow regulation during warm-up
• Thermostat replacement on classic Cadillac cooling service
• Cooling system maintenance where an OE-style 180°F thermostat is specified

Installation Notes and Tips

Verify the sealing flange diameter, bypass dimensions, and 180°F temperature rating before installation. Because no gasket or seal is included, use the correct separate sealing components for the application where required. The jiggle pin weep hole and air relief valve help with air management during installation and initial fill.

Quality Assurance

Manufactured by an OE supplier using OEM-quality materials, this thermostat is built to meet OEM specifications and safety standards for cooling-system service.