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Sierra by Forest River 378FB keeps an estimated 69% of its value after 5 years — #807 of 5706 RVs & trailers VINdown tracks.
Per VINdown's modeling, the Sierra by Forest River 378FB retains an estimated 69% of its value after five years, ranking #807 of 5706 RVs & trailers we track. That is 14 points above the 55% five-year average for Travel Trailer in its class, so it holds value better than most rivals.
The loss does not land all at once here: the Sierra by Forest River 378FB sheds about 6% in year one and keeps going at much the same rate. From roughly $66,811 it falls to around $46,300 by year five — a five-year loss near $20,511, about $11.24 a day in depreciation.
There is no single sweet spot on the Sierra by Forest River 378FB: it gives up a similar share of its value every year rather than falling off a cliff, so how long you keep it matters more than what age you buy it at. Explore the full year-by-year curve, trims, and true cost of ownership in the Model Lab above.
It keeps an estimated 69% of its value after five years — better than most among the 5706 RVs & trailers VINdown tracks (ranked #807).
From about $66,811 when new it drops to roughly $46,300 after five years — a loss near $20,511 (69% of its value retained).
There is no sweet spot to wait for on this one — it sheds a similar share of its value every year for the first five rather than dropping sharply and then levelling off, so the age that suits you depends on how long you plan to keep it. Age 2 is where the single steepest year falls.