Is more than one type of thermostat??
If so ,which type of thermostat is the best one for a 1994 jeep grand cherokee ltd. (one that will keep it cool ):rolleyes:

Since you didn't provide what engine you have, consider going with a 160 degree thermostat; e.g. the Stant below:

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Obviously, you need to get the correct part no. for your engine.

My bad... its a 94 jeep grand cherokee ltd 4.0l -inline 6 cylinder

Looks like the one above is correct.

K ill try that out thanks a lot
... and when installed it's the spring toward the engine right?

Yes, and install with pin up. Seal (thermostat mounting rubber) goes over the thermostat.

I didn't follow that pin thing or the rubber part... can u please explain!

If you see a pin on the periphery of the thermostat, it should face up. There might even be a cutout on the thermostat housing cluing you in. Install the thermostat first, place the gasket on top of the thermostat, then position the housing cover.