Why the 390RK belongs on a different shortlist
The 390RK puts an expansive kitchen at the rear and keeps the entertainment room in the center of the coach. Grand Design highlights the kitchen island, pantry/storage, and a two-person table overlooking the living area, giving food preparation a dedicated end of the trailer without isolating it from the lounge.
Who this floor plan fits
This layout is aimed at buyers who treat the kitchen as a primary living space and prefer it separated from the forward bedroom. It is a more direct fit for frequent cooking and hosting than a front-living plan whose most prominent room is the entertainment lounge.
Tradeoff to examine: At 42 ft 5 in, the 390RK requires essentially the same site-length planning as the 376RD and 391DL. The choice among those plans should therefore begin with room arrangement: rear kitchen, rear entertainment, or guest suite, rather than a minor dimensional difference.
Specifications
Weight implications for the 390RK
Using the year-specific figures in this record, the 390RK has 4,000 lb between its 15,000 lb dry weight and 19,000 lb GVWR. That is a rating comparison, not a promise that a particular trailer can carry that amount after options, fluids, batteries, and dealer-installed equipment.
Its published 2,794 lb pin weight equals about 18.6% of recorded dry weight. Loaded pin weight can change substantially, so this percentage is useful for comparing brochure records but not for approving a tow vehicle.
Within these ten Solitudes, this record ranks 3 of 10 from lightest to heaviest and 6 of 10 from shortest to longest. Check the truck's payload label, rear-axle rating, tire ratings, hitch, passengers, and cargo against the exact trailer before towing.
Capacity in practical context
The 390RK records 150 gallons of gray water, the highest gray-water capacity among these ten pages. Its 2,794-pound pin weight is also the lowest published pin figure among the Solitudes over 40 feet in this dataset.
Tank values are kept separate and shown exactly as represented in the year-specific source. Actual usable capacity and installed equipment should be confirmed on the unit.
390RK comparisons that change the decision
These siblings were selected by layout purpose and measurable tradeoffs, not only by nearest published length. The differences below use the year-specific records on RVBlueprints.
What to test during a 390RK walkthrough
- Open the refrigerator, pantry, oven, drawers, and island storage together to identify door conflicts and confirm two people can prepare food without blocking each other.
- Sit at the two-person table and in the lounge to evaluate sightlines between the kitchen, dining position, and entertainment center during a typical evening.
- Locate all gray-water termination points and verify the 150-gallon figure on the exact model-year unit, especially if extended stays motivate the purchase.
- Compare pantry volume and counter runs with the 417KB using measurements, not photographs; both are rear-kitchen plans but solve storage differently.
Source note
The brochure states that listed exterior height excludes the second A/C.