Motorsport Auto

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Part #:16-7097-1

Price: $28.87

Includes:

(1) Thermostat Assembly
(1) Thermostat Housing Gasket

Description:
A properly functioning and correct temperature thermostat is critical to ensure your engine not only runs properly, but also efficiently. Too high of a temperature rating (or sticking closed) can lead to performance loss and overheating. Too low (or sticking open) and your engine may struggle to reach operating temperature, resulting in poor fuel economy. Alternatively, higher temperature thermostats can help engines reach operating temperature faster (especially in cold areas) while lower temperature thermostats can help engines stay cooler for longer. While newer engine designs are typically a bit less sensitive to ambient temperature (to a degree), climate, engine conditions, and performance modifications can all change what thermostat temperature is ideal for your Z (high efficiency radiators often work best with higher temperature thermostats when used as a daily driver or in cooler ambient areas, as an example). Hardware not included; see Related Items.

Temperature & Usage Note:
This replacement thermostat is designed to open at 76.5°C (~170°F). Unlike early model Z-Cars, Nissan specifies this temperature for all driving conditions regardless of climate. It is suitable for use in just about every application short of forced induction, heavily modified, or racing builds. In these uncommon cases, we recommend consulting your Race Engineer to determine whether a lower temperature thermostat is needed.

Notes:
Thermostats for VQ engines (all 350Z & 370Z models) incorporate the thermostat and water inlet housing into a single assembly. Nissan specifies that the thermostat must never be removed from the inlet itself. For early model 350Zs, the lower radiator hose and the "oil cooler" hose both connect to this housing.

"Oil Cooler" Hose Note:
VQ35DE engines use coolant to both reduce engine warm up time when cold and remove heat from the engine oil at operating temperature. This is accomplished using a sandwich style adapter between the oil filter and the upper oil pan that is connected to the cooling system. Nissan refers to this as the "Oil Cooler", even though no oil flows through the system. DE engines connect this system to the thermostat housing directly in order to bypass the thermostat itself.

Model Guide:
Nissan 350Z

Code Guide:
Nissan Z33

Year Guide:
2003, 2004, 2005, 2006