Motorad 427-180 Engine Coolant Thermostat

Engine Coolant Thermostat for Nissan and Infiniti

The Motorad Standard 427-180 engine coolant thermostat is a 180°F replacement built to OE specifications for precise coolant temperature control. It uses OEM-quality materials, a copper case, and a wax compound for quick response to temperature changes, with an offset design, air relief valve, and OEM-style seals where applicable.

Compatible With Nissan Altima, Frontier, Rogue, X-Trail, Murano, Pathfinder, NV350 Urvan, Sentra, Rogue Select, Infiniti QX60, and Suzuki Equator applications that call for a 180-degree thermostat with seal. The 427-180 is a direct-fit cooling system service part for a wide range of Nissan and Infiniti models.

Key Features

• 180°F start-to-open temperature for OE-specified cooling control
• Standard thermostat design for factory-style replacement service
• Copper case and wax compound for fast reaction to coolant temperature changes
• Includes gasket/seal with rubber O-ring seal type
• Jiggle pin weep hole and air relief valve help purge trapped air during service
• Offset design and OEM-style sealing details where applicable
• Sealing flange outside diameter: 2.13 in
• Bypass diameter: 1.09 in; bypass length: 1.26 in

Detailed Description

Motorad Standard part number 427-180 is engineered as an OE-style engine coolant thermostat for vehicles that require a 180°F operating temperature. The thermostat’s copper case and wax element are built to respond quickly as coolant temperature changes, helping the engine reach and maintain the intended thermal range. This matters on applications such as Nissan Altima, Nissan Frontier, Nissan Rogue, and Infiniti QX60, where stable coolant regulation is part of normal engine operation.

Motorad’s Standard line focuses on factory-spec replacement parts for everyday cooling system service. For this thermostat, that means OEM specifications and processes, a rubber O-ring seal, and an air relief feature to support proper installation and coolant flow management. This part cross-references Quality-Built 14678 for the same application.

What This Thermostat Helps Address

• Engine running cooler or hotter than the specified operating range
• Delayed warm-up after cold starts
• Temperature fluctuation caused by a worn thermostat
• Cooling system service on Nissan and Infiniti vehicles with a 180°F thermostat requirement
• Replacement of a thermostat with leaking or deteriorated seal material

Installation Notes and Tips

Install the thermostat in the correct orientation for the housing and coolant passage layout. Verify the sealing surface is clean before assembly, and replace the seal supplied with the unit. Because this design includes a jiggle pin weep hole and air relief valve, follow proper bleeding procedures after refill to remove trapped air from the cooling system. Confirm the vehicle’s OE temperature specification before installation, especially on Nissan Altima, Frontier, Rogue, X-Trail, and related applications.

Quality Assurance

Motorad manufactures this thermostat with OEM-quality materials and safety standards as an OE supplier, using OEM specifications and processes for consistent cooling system service. The 427-180 is built for demanding automotive cooling environments and is designed to meet the temperature control requirements of listed Nissan, Infiniti, and Suzuki applications.