Motorad 268-180 Engine Coolant Thermostat

180°F Thermostat for Nissan and Infiniti

The Motorad Standard 268-180 engine coolant thermostat is built for OE-style temperature control in demanding cooling systems. It opens at 180°F and uses OEM-spec materials and processes to help maintain stable coolant flow in applications such as the Nissan Xterra, Nissan Frontier, INFINITI Q45, INFINITI QX4, Mercury Villager, and Nissan 300ZX.

Key Features

• 180°F start-to-open temperature for OE-specified cooling performance
• Copper case and wax compound for quick response to coolant temperature changes
• Standard thermostat design for direct replacement service
• Jiggle pin weep hole for air relief during cooling system fill and service
• Offset design with OEM-style sealing features where applicable
• Manufactured to OEM quality materials and safety standards by an OE supplier

Detailed Description

Motorad 268-180 is a Standard engine coolant thermostat engineered to regulate coolant flow at the factory-specified 180°F operating point. The copper case and wax element are selected to react quickly as coolant temperature changes, helping the engine reach and maintain proper operating temperature. This makes the Motorad 268-180 a practical choice for Nissan Xterra thermostat replacement, Nissan Frontier thermostat service, and other OE-matched cooling system repairs across listed Nissan and INFINITI applications.

The design includes a jiggle pin weep hole for air relief, and the offset layout supports proper fitment in applications that call for this configuration. Cross-reference part numbers include BBB Industries 13948 and CSF 3948 for the same application.

Vehicle Fitment

• Fits 2002-2004 Nissan Xterra, N/A; Temperature 180F; Includes thermostat; Use Silicone Sealant; OE Specified Temperature; Standard
• Fits 2002-2003 Nissan Frontier, N/A; Standard
• Fits 1993-2002 Mercury Villager, N/A; Temperature 180F; Includes thermostat; Use Silicone Sealant; OE Specified Temperature; Standard
• Fits 1997-2001 INFINITI Q45, N/A; Temperature 180F; Includes thermostat; Use Silicone Sealant; OE Specified Temperature; Standard
• Fits 2000 INFINITI QX4, N/A; Temperature 180F; Includes thermostat; Use Silicone Sealant; OE Specified Temperature; Standard
• Fits 1984-1986 Nissan 300ZX, N/A; Temperature 180F; Includes thermostat; Use Silicone Sealant; OE Specified Temperature; Standard

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed warm-up after cold starts
• Temperature fluctuation from a sticking thermostat
• Cooling system service on OE-specified 180°F applications
• Air trapped in the cooling system during refill or maintenance

Installation Notes and Tips

Verify the 180°F temperature rating and housing style before installation. Follow the vehicle service procedure for sealant use where specified, and inspect the thermostat housing, sealing surfaces, and coolant condition before reassembly. The jiggle pin weep hole should be oriented according to the service manual when applicable to help purge air from the system.

Quality Assurance

Motorad manufactures this thermostat with OEM-quality materials and processes as an OE supplier, using a copper case and wax compound to support consistent temperature response in demanding automotive cooling systems.