When two boats share the same hull type — in this case both the Lund 1800 Pro-V 2005 and the Lund 186 Tyee GL 2010 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 — Lund 1800 Pro-V 2005 at 18,0 ft versus Lund 186 Tyee GL 2010 at 18,5 ft. Weight tells a clearer story for trailering families: the Lund 1800 Pro-V 2005 tips the scales at 162 lbs — 144 lbs more than the Lund 186 Tyee GL 2010 at 18 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.
Both boats share a closely matched power ceiling — 175 hp for the Lund 1800 Pro-V 2005 and 175 hp for the Lund 186 Tyee GL 2010. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 4 gal and 4 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Lund 1800 Pro-V 2005 is rated for 6 passengers, while the Lund 186 Tyee GL 2010 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Lund 1800 Pro-V 2005 could be the deciding factor.
Bottom line: Choose the Lund 1800 Pro-V 2005 if your priority is putting more people on the water — it handles 6 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Lund 186 Tyee GL 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.