Jayco Eagle · 2018–2020336FBOK

The Eagle 336FBOK sits in the full-size tier of Jayco's Eagle fifth wheels, above the half-ton Eagle HT and below the luxury North Point and Pinnacle coaches. This page covers one model year of it — the 2020 336FBOK, exactly as Jayco published it — because the numbers that decide whether your truck can pull this trailer are not the same from one year to the next.

For the 2020 model year Jayco published a 13750-pound GVWR on a 11682-pound dry weight, 2,068 pounds of published cargo capacity, a 2216-pound dry pin weight. A pin weight in that range lands well outside half-ton territory: plan on a three-quarter-ton or larger truck, and check the loaded pin against the truck's payload and rear-axle ratings rather than against the tow rating alone.

Against the 2018 build of the same floorplan, 6 published fields moved. The full comparison is in section 02, and it is drawn from two separate verified factory records rather than from one record and an assumption about the other.

A 2020 coach is 6 model years old as of 2026, which puts it squarely in used-buyer territory. Section 05 sets out what to inspect on a laminated-wall fifth wheel of this age — tyre date codes, roof and seam sealant, slide seals, and the soft-floor and delamination checks that separate a tidy coach from an expensive one.

This floorplan has a verified factory record for 2 model years here, 2018 to 2020, and the specification does not hold still. Across those years dry weight ranges from 11,245 lb in 2018 to 11,682 lb in 2020, a spread of 437 lb; dry pin weight ranges from 2,115 lb in 2018 to 2,216 lb in 2020, a spread of 101 lb. That is why each model year has its own page below, carrying only its own published figures. Nothing on a year page is copied across from a neighbouring year.

Jayco changed 6 of the published fields between the 2018 and 2020 336FBOK. Every figure in both columns is that model year's own factory record — nothing here is carried across from the other year.

Cargo capacity on the 336FBOK is 2,068 pounds — the entire budget for gear, water, propane, batteries and everything else you put aboard.

The published dry pin weight of 2,216 pounds is 19% of this floorplan’s 11,682-pound dry weight. Fifth-wheel pin weight rides in the bed of the truck, so it comes off payload rather than off tow rating — and it rises with the trailer as you load it, not in proportion to what you put over the axles.

Nothing above changes the ceiling. Loaded to its 13,750-pound GVWR the 336FBOK is towing 2,068 pounds more than its 11,682-pound dry figure, and that is the number your vehicle has to be rated for — not the brochure weight.

Ranked by GVWR, the 336FBOK sits 69 of 81 in the Eagle line: 13,750 pounds against a line that runs from 8,400 to 15,400 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: Eagle 325BHQS matches it exactly at 13,750 lb GVWR; and Eagle 325BHQS matches it exactly at 13,750 lb GVWR.

3 other Eagle plans share this floorplan’s 13,750 lb GVWR, so the ranking above separates plans that tow to the same ceiling. On a shared chassis the figure that actually differs between them is cargo capacity and where the weight sits, not the rating.

Against the 336FBOK: the Cardinal 33CHEF is 135 lb heavier and 1 ft shorter; the Wildcat 33CHEF is 135 lb heavier and 1 ft shorter; the Open Range 3X 287RLS is 150 lb heavier and 5 ft shorter. 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 fifth wheels 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 Eagle floorplans profiled here run 6,560 to 13,030 pounds dry and 28 to 43 feet of exterior length across 81 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 Eagle line hub.

This catalog tracks 18 specification fields per floorplan. Named sources publish 8 of them for the 336FBOK. 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: exterior height, fresh tank, grey tank, sleeps, slide count, axle count, tire specification, awning, 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 (43%) 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.