Sorry, but yu are out of luck...
01-03 get that part number. Yu were shown the correct Hitch for your model year 2003.
04-07 HL's have a different exhaust and bumper design as well as the spare is located outboard..not inside like yours is. What yu were shown is application specific. (for 01-03's)
To try and use an 04+ hitch..yu find that it will not clear the exhaust properly and might not clear the lower edge of your bumper....
Yu can always experiment with an 04+ hitch.
But that's not my recomendation. What yu see, is what yu get in a hitch from Toyota. Yu don't have much of an option.
When it comes to OE hitches...the proper fit is more important than esthetics.
Maybe someone else can chime in here.
LT
