Motorad 2041-160 Engine Coolant Thermostat

160°F High Flow Thermostat for Engine Cooling

The Motorad High Flow 2041-160 engine coolant thermostat is built for drivers who need precise temperature control in demanding cooling systems. It uses OEM-quality materials and OE-supplier manufacturing standards to deliver consistent coolant regulation for a wide range of import and domestic applications.

With a 160°F opening temperature, copper case construction, and a wax compound designed for quick reaction to coolant temperature changes, this thermostat supports stable engine warm-up and responsive cooling performance. It is a direct-fit style engine coolant thermostat for applications such as Nissan 280ZX, Nissan Sentra, Isuzu Trooper, and Mazda 626.

Key Features

• 160°F thermostat opening temperature for lower operating temperature control
• High Flow design for demanding automotive cooling systems
• Copper case and wax compound for rapid response to coolant temperature changes
• OEM-quality materials manufactured to OE supplier standards
• Jiggle pin weep hole included for air bleeding during service
• Sealing flange outside diameter: 2.12 in
• Flange thickness: 0.05 in
• No gasket or seal included

Product Details

Motorad High Flow part number 2041-160 is engineered for vehicles that need dependable coolant flow control and accurate temperature regulation. The 160°F calibration makes it a practical choice for owners servicing older Nissan, Isuzu, Mazda, Subaru, Chevrolet, Honda, Geo, and related applications where consistent thermal management matters. This part cross-references Dorman Autograde 65416 and Dorman HELP 15856 for the same application.

Compatible vehicle coverage includes 2008 Mazda B3000, 1991-1997 Isuzu Rodeo, 1994-1996 Honda Passport, 1981-1995 Isuzu Pickup, 1989-1994 Isuzu Amigo, 1992-1993 Geo Storm, 1991-1993 Isuzu Stylus, 1983-1992 Isuzu Impulse, 1984-1991 Isuzu Trooper, 1985-1989 Isuzu I-Mark, 1986-1989 Nissan D21, 1983-1989 Nissan Pulsar NX, 1985-1988 Chevrolet Spectrum, 1977-1988 Nissan 200SX, 1987-1988 Nissan Pathfinder, 1982-1988 Nissan Sentra, 1976-1987 Subaru Standard, 1980-1986 Nissan 720, 1984-1985 Mazda 626, 1982-1984 Nissan Maxima, 1979-1983 Nissan 280ZX, 1983 Nissan Pulsar, 1979-1982 Nissan 210, 1979-1982 Nissan 310, 1978-1981 Nissan 510, 1968-1973 Nissan 510, and 1977-1981 Nissan 810.

Common Uses

• Restoring proper coolant temperature control after thermostat wear
• Addressing slow warm-up or inconsistent engine temperature readings
• Replacing a thermostat with sticking, delayed opening, or overheating symptoms
• Servicing older Nissan, Isuzu, Mazda, Honda, Geo, Subaru, and Chevrolet cooling systems
• Supporting stable operation in high-flow cooling system applications

Installation Notes

Confirm the 160°F temperature rating and sealing flange dimensions before installation. The gasket or seal is not included, so use the correct sealing component specified for the application. The jiggle pin weep hole should be oriented to help purge trapped air during coolant refill. Clean the housing mating surfaces thoroughly and verify proper coolant level after installation.

Quality Assurance

Motorad manufactures this thermostat with OEM specifications and processes, using materials selected for OE-level fit and thermal response. The copper case and wax compound are designed to react quickly to coolant temperature changes, supporting reliable service in demanding automotive cooling systems.