replacing the temp guage on 99 accord
 

Where can I purchase the stepper motor that controls the temperature guage on the instrument cluster of a 99 accord?

If you mean the air mix motor that controls air temperature with an Auto Temp Control, Honda parts is best, maybe only source.

Used parts may be obtainable, check car-part.com or ebay.

See "Heater Unit" under Honda parts menu and part 6.

good luck

Thats not it. What Im looking for is in the instrument cluster and the temp needle is inserted into it. Again its located in the cluster itself. Any ideas?

99 honda accord

Honda parts is likely source. The diagrams will help to identify correct part.

good luck