The Sweetwater 1817 RE-3 Gate 2005 vs Sweetwater SW 2186 RE3 2009 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.
On paper these two are close siblings in the size department — Sweetwater 1817 RE-3 Gate 2005 at 18,0 ft versus Sweetwater SW 2186 RE3 2009 at 21,0 ft. Weight tells a clearer story for trailering families: the Sweetwater SW 2186 RE3 2009 tips the scales at 2 195 lbs — 569 lbs less than the Sweetwater 1817 RE-3 Gate 2005 at 1 626 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 115 hp, the Sweetwater SW 2186 RE3 2009 has a 40-hp advantage over the Sweetwater 1817 RE-3 Gate 2005's 75-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 24 gal and 24 gal — so range won't be a tiebreaker here.
Both boats are rated for 9 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Sweetwater SW 2186 RE3 2009 at 21,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Sweetwater 1817 RE-3 Gate 2005 at 18,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.