The Lund 1800 Explorer Tiller 2004 vs Lund 1800 Pro Sport OB 2005 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
The power gap is worth calling out. Rated to 150 hp, the Lund 1800 Pro Sport OB 2005 has a 60-hp advantage over the Lund 1800 Explorer Tiller 2004's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 32 gal and 32 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 Sport OB 2005 is rated for 8 passengers, while the Lund 1800 Explorer Tiller 2004 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Lund 1800 Pro Sport OB 2005 could be the deciding factor.
Bottom line: Choose the Lund 1800 Pro Sport OB 2005 if your priority is putting more people on the water — it handles 8 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Lund 1800 Explorer Tiller 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.