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Fifth Wheel · Mid-Size Luxury · Single-Source Profile

2026 Brinkley Model Z3515

The work-from-anywhere Model Z — a triple-slide coach with a rear flex room that serves as office, butler’s pantry, laundry room or mudroom, a center-island kitchen and a front king bedroom, with the second-largest payload in the line.

Tow-Critical Data — as built, MY2026

13,989lb
Dry Weight
17,495lb
GVWR
2,607lb
Pin Weight
39ft
Length
Sleeps up to 7 Mid-Size Luxury Fifth Wheel · Rear office: pantry / laundry / mudroom / flex, king bed Built by · Brinkley RV (independent) Interior · 79.5" bed & bath height

01 What makes it unique

The 3515 is the Model Z built around a flexible rear room. Its centerpiece is a rear multipurpose flex space — an office, butler’s pantry, laundry room or mudroom — with an electric adjustable-height solid-surface countertop/desk over 60-by-70 inches of usable floor space, overhead and floor-to-ceiling cabinets, additional washer/dryer prep and one of the coach’s two entry doors. Forward of it, dual opposing slides open a combined kitchen and living room with a 60-inch tri-fold sofa (a 50-by-70-inch sleeper), theater seating, a sliding desk/dining table, a televator over the fireplace, a center island with pet bowls and an 84-inch pantry. A front full bath with a 30-by-42-inch shower leads to a private front bedroom with a king bed slide-out, a sliding dresser, bedside shelves, a wardrobe and washer/dryer prep.

It rides on 8,000-pound tandem axles and carries the line’s second-biggest payload. RVUSA lists a published 17,495-pound GVWR against a 13,989-pound dry weight, leaving a healthy 3,506-pound payload and a 2,607-pound dry pin — figures that want a properly rated three-quarter-ton or one-ton truck. The full Brinkley build carries through on the monotube triple-powder-coated chassis, a CURT Touring Coil suspension with ABS, a Helux king pin and brass plumbing, with two air conditioners, a 120-gallon grey tank, a 370-watt solar package and the class-leading 79.5-inch bed and bath ceiling height standard.

Brinkley publishes a $132,600 standard-run MSRP for the 3515; RVUSA does not list a price in its structured record, so no figure is shown in this profile’s pricing fields. For a remote worker or full-timer who wants a dedicated rear office, mudroom or laundry — and a king front bedroom — in Brinkley’s luxury build, the 3515 is the work-and-live Model Z.

02 Full specifications

Dimensions

Exterior length
39' 11"
Exterior width
8' 0"
Exterior height
13' 4"
Bed & bath height
79.5" (class-leading)

Weights

Dry / unit base weight
13,989 lbs
GVWR (max loaded)
17,495 lbs
Net cargo / payload
3,506 lbs
Dry pin weight
2,607 lbs

Capacities

Fresh water
75 gal
Grey water
120 gal
Black water
45 gal
Refrigerator
16 cu ft

Construction

Frame
Monotube chassis · triple powder-coated
Walls
Laminated Azdel · high-gloss gel-coat fiberglass
Insulation
R40 roof · R11 walls · R40 floor
Underbelly
Enclosed & heated · forced-air circulated

Running gear

Axles
2 (8,000 lb tandem) · 8,000 lb leaf springs
Hitch
Fifth-wheel (in-bed) · CURT Helux king pin
Suspension
CURT Touring Coil (TCS) · ABS w/ sway control
Tires
17.5" Load Range H 16-ply · aluminum wheels

Galley & bath

Cooktop
Three-burner · 30" residential microwave
Refrigerator
16 cu ft · 12-volt
A/C
18k rear Furrion Chill Cube + 13.5k front w/ heat pump
Water heater
Tankless on-demand · 144 GPH

Sleeping & layout

Sleeps
Up to 7
Slides
3
Awnings
2
Primary bed
King (slide-out)

03 The Model Z floorplan family

The Brinkley Model Z is a mid-size luxury fifth wheel and one of the most talked-about new entrants in the segment. The line runs to twelve floorplans for 2026; the eight highest-demand layouts are profiled here in full, and the remaining four are catalogued on the line hub. The 3515 on this page is highlighted; each other profiled plan links to its own page.

FloorplanNominalSleepsNotable
267030 ft7Rear-living entry, lightest, outdoor kitchen
268030 ft5Front bed + rear desk/office, remote-work
281035 ft6Rear bunkhouse, L-bunks, private entry
290033 ft5Rear living, center island, front master
310035 ft7Rear living, center island, front bed
311035 ft8Rear bunkhouse, center island, rear pass-through storage
330037 ft6Rear kitchen, dual-entry bath, 150-gal fresh
340039 ft7Rear kitchen + outdoor kitchen + rear patio
342040 ft7Rear patio + outdoor kitchen, king bed (longer 3400)
351540 ft7Rear office: pantry / laundry / mudroom / flex, king bed
360039 ft7Rear-living variant, 72-inch tri-fold
361042 ft10Flagship: mid bonus room, 3 A/C, sleeps 10

The Brinkley Model Z is a mid-size luxury fifth wheel built by Brinkley RV, an independent manufacturer founded by RV-industry veterans. The full line runs to twelve floorplans for 2026; eight are profiled here and four more are catalogued above. Every plan rides on the same monotube triple-powder-coated chassis with 7,000-pound tandem axles on 8,000-pound leaf springs, a CURT Touring Coil suspension with ABS and a Helux king pin, and a fully enclosed, heated underbelly, and ships with a 370-watt roof solar package (740-watt ready) with a 50-amp MPPT controller, a 16-cubic-foot 12-volt refrigerator, brass plumbing fittings and a tankless on-demand water heater as standard — with a class-leading 79.5-inch bed and bath ceiling height. Body specifications (lengths, heights, payload, tanks, sleeping, slides and awnings) are RVUSA-verified against the 2026 structured spec records, each page fp-slug and title checked; dry weight, GVWR, payload and pin weight are published per plan, and each plan's dry weight plus payload equals its GVWR exactly. Real loaded pin weights run higher — always weigh the loaded coach and confirm against your truck's payload and rear-axle ratings.

04 What owners & reviewers report

Rear office / flex room

A rear multipurpose space — office, butler’s pantry, laundry or mudroom — with an electric adjustable-height desk and extra W/D prep, plus its own entry door.

Second-biggest payload

A 3,506-lb payload, behind only the 3300 — generous cargo capacity for a triple-slide coach this length.

King bedroom + dual W/D prep

A private front bedroom with a king bed slide, plus washer/dryer prep in both the bedroom and the rear flex room.

8,000-lb axles

Heavier 8,000-pound tandem axles under a 17,495-lb GVWR — confirm a properly rated 3/4- or 1-ton truck.

SOURCING — ownership notes to be expanded with cited threads from owner communities & forums per the data plan

05 How it compares

↔ Cross-shop
Brinkley Model Z 2680

The single-slide couples plan with a rear desk/office — a far lighter, lower-cost work-from-the-road Model Z.

↑ Heavier
Brinkley Model Z 3610

The flagship — a four-slide, three-A/C coach with a flexible mid-coach bonus room and the highest sleeping capacity.

↔ Cross-shop
Brinkley Model Z 3420

The same length as a rear-patio entertainer — an outdoor-living plan instead of a rear office.