Help on parts specification

Hello.
This is Fernando from Spain. I have a Mistubishi Eclipse RS , 1005. Some of the motor parts are chysler.
I do not have the instruction book for the car and for the spare parts.
I need to chance distribution belts but I do not know the spare part number to order it
Also my temperature gauge it is not working. I need the to get the sensor and termistance that send the temp reading to the gauge , I was looking around and seem to be two different components on the sensor.
The gauge does work because the niddle moves up just to the middle but it does not fluctuates.
This car I bought it in the US when I used to live there and I brought it with me to Europe that it´s why I have trouble with the parts.
Can any one help me with this????????????'
Any one with the same Eclipse that could give me the reference number of the parts I need?

Thank you in advance for you help guys.
My email is [email protected]
Sincerely
Fernando de Castro