Eureka 6982A canister 

2002. Yes that Power nozzle is original to it since it's a 6982A, it got replaced the 6982A-1 uses the GE power nozzle.

The power head is running loud because it needs a new belt. The brush isn't spinning properly at all. Those nozzles take a Eureka AR belt. The Power nozzle is proper and they used the same power head on the 6982 D. The color is proper for the unit too.

I would have thought that the power nozzle would have been the same blue color as the machine. Yes, it sounds loud

shout out dem dirt devils