When two boats share the same hull type — in this case both the Alumacraft Navigator 165 Sport 2006 and the Alumacraft Trophy 195 2007 are modified vee designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department — Alumacraft Navigator 165 Sport 2006 at 16,0 ft versus Alumacraft Trophy 195 2007 at 19,0 ft. Weight tells a clearer story for trailering families: the Alumacraft Trophy 195 2007 tips the scales at 1 805 lbs — 1 700 lbs less than the Alumacraft Navigator 165 Sport 2006 at 105 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The power gap is worth calling out. Rated to 200 hp, the Alumacraft Trophy 195 2007 has a 110-hp advantage over the Alumacraft Navigator 165 Sport 2006's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Alumacraft Navigator 165 Sport 2006 carries 23 gallons versus 4 gallons in the Alumacraft Trophy 195 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Alumacraft Trophy 195 2007 is rated for 8 passengers, while the Alumacraft Navigator 165 Sport 2006 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Trophy 195 2007 could be the deciding factor.
Bottom line: Choose the Alumacraft Trophy 195 2007 if your priority is putting more people on the water — it handles 8 passengers and at 19,0 ft it has the deck room to back that rating up comfortably. The Alumacraft Navigator 165 Sport 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.