2026 East to West Alta1900MMK

The Alta 1900MMK leaves East to West's factory at 5,463 lbs dry with 2,147 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 48-gallon fresh tank spends 398 lbs of the 2,147 lbs before anything else goes in.

Dry tongue weight is 610 lbs, or 11% of the dry weight. Ten to fifteen percent is the conventional band for a bumper-pull trailer, and this plan sits inside it as published. Tongue weight is not fixed: it moves with how the trailer is loaded, and weight added ahead of the axles raises it. A weight-distribution hitch is the normal fitment at this tongue load, and the tow vehicle's tongue-weight limit is a separate number from its trailer-weight limit.

Tank capacities are 48 gallons fresh, 30 grey and 30 black, 60 gallons of waste capacity against 48 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 Alta roster this is the 3rd of 16 floorplans by dry weight, in a line that runs from 3,998 lbs to 10,334 lbs. It sits in the lighter 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 5,463 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 6,537 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 roster block 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. 1900MMK is a Alta designation and this site does not decode it into a layout claim.

Alta is the broadest roster East to West publishes, and the spread is the reason to read the table rather than the floorplan numbers. Sixteen floorplans run from 3,998 lb dry on the single-axle LE plans to 10,334 lb at the top, which is not one trailer class but three: a pair of LE models light enough to sit behind a mid-size SUV, ten mainstream tandem-axle trailers, and two toy haulers plus one Xtreme plan at the heavy end. Crucially all of them are bumper pull. Tongue weight runs 470 to 1,350 lb across the whole roster, and even the toy haulers -- which East to West groups separately -- load 1,165 to 1,350 lb onto a ball, not a pin. That matters because a toy hauler badge usually implies a fifth wheel and here it does not. Cargo capacity runs 1,202 to 4,717 lb.

This floorplan carries its water comfortably. A full 48-gallon fresh tank is roughly 19% of the 2,147-pound cargo capacity, leaving the 1900MMK with a usable gear budget even when you tow full.

The published dry tongue weight of 610 pounds is 11% of the 5,463-pound dry weight, which sits inside the 10–15% band usually quoted for stable towing. It is still a dry figure: loading the front pass-through and the fresh tank both push it up.

Tank balance is generous here: 48 gallons of fresh against 30 grey and 30 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.

Ranked by dry weight, the 1900MMK sits 2 of 8 in the Alta line: 5,463 pounds against a line that runs from 3,998 to 10,334 pounds. That position is the useful thing to know, because the plans immediately either side of it are the real alternatives.

Either side of it in the same line: Alta 1600MRB-LE is 1,465 pounds lighter at 3,998 lb dry; and Alta 2375KRK is 865 pounds heavier at 6,328 lb dry.

Against the 1900MMK: the Jay Flight 245BHSW is 3 lb lighter and 4 ft longer; the Springdale 2120RKS is 13 lb lighter; the Hideout 22MLS is 14 lb heavier and 1 ft longer. Those are differences in the published numbers only — what they cost, how they are built and how they live are separate questions each of those pages answers on its own terms.

Those are the nearest travel trailers from other lines by weight — one per line, picked by proximity on that figure and nothing else. They are listed so the same tow vehicle can be checked against real alternatives, not because they are equivalent inside; layout, build and price diverge sharply across that group.

For scale, the Alta floorplans profiled here run 3,998 to 10,334 pounds dry and 23 to 38 feet of exterior length across 8 plans. Where a floorplan falls in that spread usually says more about which vehicle can tow it, and which site it fits, than the layout name does.

Every profiled floorplan in this line, with the full weight table, is on the Alta line hub.

This catalog tracks 18 specification fields per floorplan. Named sources publish 10 of them for the 1900MMK. The rest are not shown, because the alternative is reading a figure across from a sibling floorplan or from what the segment usually does — and a number nobody published is worth less than an admitted gap.

Not published for this floorplan: GVWR, interior height, sleeps, slide count, axle count, tire specification, refrigerator, air conditioning. If you find one of these in a manufacturer document for this plan, it belongs on this page.

The completeness figure at the foot of this page (83%) measures the same thing on the full field set: it is a measurement of how much this floorplan’s manufacturer publishes, not of how much research went into the page.

How every figure here was sourced and checked is set out on the methodology page.