Thermostat 160 Deg

The MR. GASKET 160 Degree Thermostat (Part #4366) is a brass and copper cooling system component engineered to regulate engine temperature at 160 degrees Fahrenheit. Built for Mopar-platform vehicles, this thermostat maintains optimal operating temperature during both highway cruising and high-demand driving conditions, preventing overcooling while protecting against thermal stress.

The 160-degree opening temperature is a widely recognized specification in small-block and big-block Mopar engines, favoring engine efficiency and emission control over maximum cooling capacity. Brass and copper construction provides superior heat conductivity and corrosion resistance compared to modern plastic housings, making this thermostat a popular choice for classic restoration and performance rebuild applications where cooling system longevity matters. The compact design (4.25 x 1.65 x 6.3 inches) ensures direct compatibility with original Mopar thermostat housings without modification.

This thermostat is ideal for owners restoring or maintaining Mopar muscle cars, street machines, and light-duty trucks from the 1960s through early 1990s. Enthusiasts rebuilding their cooling systems benefit from MR. GASKET's established reputation for producing OEM-quality replacement components at accessible pricing. A 160-degree unit works well in temperate to warm climates and suits engines running standard street-duty loads rather than extreme high-horsepower applications, where lower-temperature thermostats may be preferred.

When selecting a cooling system thermostat, the opening temperature directly affects idle quality, fuel economy, and cold-start behavior. A 160-degree specification balances quick warm-up with stable running temperature, making it the stock choice for most Mopar V8 applications. Verify your vehicle's original thermostat housing and coolant flow direction before installation to ensure correct fitment.