Ndabunka,PT228-69045 is the correct part number for the full tubular Hitch. Yes, if yu have the
Tow prep pack the converter is in there already. Yu will have nothing else to buy. The
converter is in your HL just waiting for the OE hitch.
My dealer had the
PT228-69045 for $297 list. I managed to get it for $250 even (tax incl.) Installed it on an a friends 04 HL with
Tow prep already installed. Converter (blue Box) was under the rear storage compartment. Since yours is a Hybrid.
The converter may be in a slightly different location due to Hybrid battery location.
The Hitch comes with the wiring and harness and great Toyota instructions.
LT