Will a 2002 HD Sportster fuel tank fit a 2005 Sportster 883?

the fxr 4 gallon tank fits with 2 extension plates at front of tank ,this I used on my 92 sportster hugger

Never hear of an after market tank for the intruder, the tank is located under the seat and holds only 3 gallons. You can get aprox 120-130 miles on a tank full.

some of the aftermarket manufacturers make what they call a "king tank". I don't know how much more fuel that will give you if any at all. that's the biggest tank a Sporty that I've seen. Now, I have seen a set of Fat Boy tanks on a Sportster and they look good. Of course, this would require that you fabricate a custom mount for the tanks.

all of the deuce tanks will fit...the only thing you will need to be carefull of is carb vs efi...there are 2 places to accept fuel connection on the bottom side of the tank near the back on the left side...one is for carb models and the other for efi models.