2026 East to West Ahara390DS

The Ahara 390DS leaves East to West's factory at 15,664 lbs dry with 3,451 lbs of cargo capacity. East to West publishes no GVWR for this line, so the loaded rating is not quoted on this page and is not computed from the other two figures. What the cargo number covers is defined by the factory: fresh water, gear, food, batteries and every dealer-installed accessory come out of it. Fresh water is 8.3 lb per gallon, so filling the 64-gallon fresh tank spends 531 lbs of the 3,451 lbs before anything else goes in.

Dry pin weight is 3,115 lbs, which is 20% of the dry weight. That figure lands on the truck's rear axle and comes straight off its payload rating - not its towing rating, which is the number most often quoted and the wrong one for this decision. Pin weight rises as the trailer is loaded, and a fifth wheel loaded toward its cargo capacity will put substantially more than 3,115 lbs over the bed. Read the payload figure on your own door sticker rather than a brochure maximum for the model.

Tank capacities are 64 gallons fresh, 132 grey and 88 black, 220 gallons of waste capacity against 64 gallons of supply. The ratio is what governs how long the trailer can sit off hookups: waste capacity exceeds fresh, so the fresh tank is the binding constraint and refilling extends the stay. East to West publishes these three figures per floorplan, and they are the factory's numbers rather than a segment average.

Against the rest of the Ahara roster this is the 8th of 9 floorplans by dry weight, in a line that runs from 11,759 lbs to 15,794 lbs. It sits in the heavier third of the line. Comparing floorplans inside one line is more reliable than comparing across brands, because every figure here comes from the same factory channel on the same day.

A useful way to read these figures is to stop planning against the dry weight. Nobody tows a trailer at 15,664 lbs: that is the weight before water, batteries, propane, bedding, food, tools and anything the dealer bolted on. Load half the published cargo capacity and this plan is already near 17,390 lbs on the road. Because East to West publishes no loaded rating for this line, the ceiling has to come from the trailer's own weight label rather than from this page, and the comparison you make against the tow vehicle should use the loaded figure.

Every number above was captured twice from East to West and checked against itself before it was published. The line listing and the individual floorplan page are two separate factory renderings of the same trailer, and this plan's 4 shared figures agree exactly on both. There is no published GVWR on this line, so the usual arithmetic check - dry plus cargo equals the rating - has nothing to test against here. Where a figure is missing from this page it is because East to West does not publish it in this channel, not because it was hard to find - and the row says so rather than being quietly dropped.

East to West publishes no floorplan description for this plan in the channel this page is built from - only the numeric specification block. Rather than describe a layout from the floorplan code, which would be a guess dressed as a fact, this page carries what the factory publishes and says where it stops. 390DS is a Ahara designation and this site does not decode it into a layout claim.

Ahara is East to West's full-size fifth wheel, and it is a truck decision before it is a floorplan decision. Nine floorplans run 11,759 to 15,794 lb dry across 34ft 5in to 44ft 1in of exterior length, and the pin loads run 2,310 to 3,220 lb on the seven profiled plans. Pin weight is the number to read first, because unlike a tongue load it sits directly on the tow vehicle's payload rating rather than being partly carried by the trailer's own axles -- and 3,220 lb of pin will exhaust the payload of many three-quarter-ton trucks before any passengers or gear are added. Cargo capacity runs 2,731 to 4,401 lb. Two further plans are sold dealer stock only and are catalogued rather than profiled.

A full 64-gallon fresh tank is about 534 lb of water, 15% of the 390DS’s 3,451 lb cargo capacity, leaving 2,917 lb. Across 7 Ahara floorplans the water share runs 12% to 20%, and 3 give up more than this one. Nearest on that share: Ahara 297MK at 14% and Ahara 365RL at 16%.

Closest sibling: the Ahara 385DS, nearest on the published figures. It differs on 4 of the 7 fields both publish (this plan first): length 42 ft 10 in vs 43 ft 9 in; dry weight 15,664 lb vs 15,009 lb; cargo capacity 3,451 lb vs 3,811 lb; dry hitch weight 3,115 lb vs 2,820 lb. They match on fresh tank, grey tank and black tank.

Either side of it by dry weight: Ahara 385DS is 655 lb lighter (15,009 lb dry); Ahara 395FB is 130 lb heavier (15,794 lb dry).

All 7 Ahara floorplans: Ahara line hub.

Against the 390DS: the Nightfall 397NHD is 10 lb heavier and 2 ft longer; the Sandstorm 4017GX is 10 lb heavier and 2 ft longer; the XLR Nitro 40G17 is 10 lb heavier and 2 ft longer.

10 of the 18 fields this catalogue tracks are published for the 390DS. Not published: GVWR, interior height, sleeps, slide count, axle count, tire specification, refrigerator, air conditioning.

Sourcing rules: methodology.