Axiom Imperium
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Axiom Imperium RVs For Sale
Axiom Imperium luxury fifth wheels for sale at Motor Home Specialist, the #1 Volume Selling Motor Home Dealer in the World and the #1 Axiom RV dealer in the country.
The Imperium is Axiom's flagship luxury fifth wheel. It's designed by RV industry veterans for full-time RV owners and traveling families who want a residential-feeling living space, oversized seating capacity for entertaining, and unusual features like the I3800RPMS's self-deploying side patio off the bedroom. Couples shopping the I2900RK as a more manageable footprint, and entertainers or larger families looking at the I3800RPMS as a full-time residence with dual patios and 1.5 baths, will find the Imperium hits a different point in the luxury fifth wheel market than typical builds in this segment.
Three Standard Packages
Every Imperium is built around three standard equipment packages that together cover suspension, structural, electrical, climate, kitchen, and bath features.
Lux Package (chassis and structure): Curt Touring Coil suspension, low-alloy steel construction (rated 72% stronger than standard fifth wheel framing), 17.5-inch rims with H-rated tires, the Axiom ClearSpan roofing system, deluxe graphics with marine-grade fiberglass exterior, the Solid Step triple entry step, the main glass entry door with assist grab handle, and the Pathfinder lighting system with integrated turn signals. The construction is built to handle full-time use and long-distance towing without the chassis flex that plagues some lighter-built fifth wheels.
Essential Package (systems and control): The Lippert 6-point hydraulic leveling system, the Perfect Air 9000K triple mini-split climate system, the PowerPro control panel, the extended-latch entry door lock system, battery and solar disconnects, a 200-watt solar panel paired with a 2,000-watt inverter, and the patent-pending AX Flex Ottoman.
AX Comfort Package (interior finishes): Solid-surface kitchen countertops, the king-size mattress with bed tilt system, G20-tinted frameless windows, StowMax storage, Starlink prep, hardwood cabinet doors with slow-close hidden hinges, a 22-cubic-foot 110V residential refrigerator, the Ultimate Kitchen Sink, a 65-inch LED HD Smart living room TV, a Fogotti on-demand water heater, and electric gate valves on all holding tanks.
Standard Across the Lineup
Standard features on every Imperium include the king-size mattress with bed tilt system for easier under-bed storage access, hardwood cabinet doors with slow-close hidden hinges, solid-surface kitchen countertops, a 22-cubic-foot 110V residential refrigerator, a 65-inch LED HD Smart TV in the living area, the Fogotti on-demand water heater, electric gate valves on all holding tanks, the Perfect Air 9000K triple mini-split heating and cooling system, Lippert 6-point hydraulic leveling, a 200-watt solar panel with 2,000-watt inverter, marine-grade fiberglass exterior, frameless G20 tinted windows, and StowMax storage compartments.
Available Options
Options across the Imperium lineup include a front pass-through pull-out tray, a front pass-through easy-access ramp door, a second 190-watt solar panel, slide toppers, the AX Camera Package (rear and side cameras), dual-pane windows, a Splendid washer/dryer, a Furrion dishwasher, a 6 kW LP generator, the Midnight Exterior Package, the AX-EZ-Swing, and the DeeMaxx hydraulic double or triple axle disc brake system.
The Three Imperium Floor Plans
Motor Home Specialist stocks the Imperium in two floor plans. All three share the Lux, Essential, and AX Comfort standard packages, the king-size master bed, and the 102-inch exterior width by 13-foot 5-inch height.
I2900RK: 33 feet 11 inches long. 15,990-pound dry weight. 2,300-pound pin weight. 18,500-pound GVWR. Exclusive U-shape living area that seats up to 18 people, dual opposing slides expanding the bedroom into a king-bed suite, and a rear kitchen layout that maximizes counter space and storage. A patent-pending rear-mounted generator option opens up the largest pass-through storage in its class. Built for travelers who want maximum interior space in a length that parks at typical state parks and longer-stay campgrounds without booking the largest pull-through sites.
I3800RPMS: 41 feet 11 inches long. 18,980-pound dry weight. 3,250-pound pin weight. 24,000-pound GVWR. Includes two industry-first features: a self-deploying side patio off the bedroom that opens in seconds, and a rear patio with a built-in bar area. U-shape living seats up to 12 guests. The front bathroom uses a massive front window for natural light, and the 1.5-bath layout adds a powder bath for families and entertainers. The rear kitchen pairs extensive cabinet storage with a large countertop area.
Cross-shopping the Imperium against other luxury fifth wheels? Browse the full Axiom RV lineup at MHSRV to line up floor plans, pricing, and features across the brand.
Axiom Imperium FAQs
What is the Axiom Imperium?
The Axiom Imperium is a luxury fifth wheel designed for full-time RV living, families, and entertainers. It includes residential interior finishes, oversized U-shape living seating that handles up to 18 people on the I2900RK, a king-bed master suite, the Lux/Essential/AX Comfort standard packages, and unusual options like the I3800RPMS's self-deploying side patio off the bedroom and rear patio with bar area.
Is the Axiom Imperium a fifth wheel?
Yes, the Imperium is a fifth wheel, towed by a pickup truck using a fifth wheel hitch installed in the truck bed. It's not a motorhome and doesn't have its own engine. A pickup truck rated to handle the Imperium's pin weight and GVWR is required.
What truck do I need to tow an Axiom Imperium?
Truck requirements depend on floor plan. The I2900RK has an 18,500-pound GVWR with a 2,300-pound pin weight, which most modern three-quarter-ton or one-ton diesel pickups can handle when properly equipped with a fifth wheel hitch. The I3800RPMS has a 24,000-pound GVWR with a 3,250-pound pin weight. These larger floor plans require a one-ton (or larger) heavy-duty diesel pickup with the appropriate fifth wheel hitch rating. Always verify your specific truck's GCWR, payload capacity, and rear axle weight rating against the loaded fifth wheel weight before towing.
What floor plans does the Axiom Imperium come in?
Motor Home Specialist offers the Axiom Imperium in two floor plans: the I2900RK and the I3800RPMS. The I2900RK is the shorter footprint at 33 feet 11 inches with the 18-person U-shape seating and king-bed suite. The I3800RPMS is 41 feet 11 inches with dual patios and 1.5 baths.
How much does the Axiom Imperium weigh?
The I2900RK has a dry weight of 15,990 pounds, a pin weight of 2,300 pounds, and an 18,500-pound GVWR. The I3800RPMS has a dry weight of 18,980 pounds, a pin weight of 3,250 pounds, and a 24,000-pound GVWR. Both floor plans are 13 feet 5 inches tall and 102 inches wide.
What is the difference between the Imperium I2900RK and I3800RPMS?
The I2900RK is the shorter footprint floor plan at 33 feet 11 inches, with rear-kitchen layout, U-shape seating that handles 18 people, and a lower GVWR (18,500 pounds) for buyers who want a fifth wheel a typical heavy-duty pickup can tow. The I3800RPMS is 41 feet 11 inches and adds the dual-patio configuration (self-deploying side patio off the bedroom and rear patio with bar area) along with a 1.5-bath layout. Pick the I2900RK for maximum entertaining seating in the shortest towable footprint. Pick the I3800RPMS for the dual-patio configuration and 1.5-bath family layout.
Does the Axiom Imperium have a king bed?
Yes, every Imperium comes standard with a king-size mattress and the AX bed tilt system, which lifts the mattress for easier under-bed storage access. On the I2900RK, dual opposing slides expand the bedroom into a full king-bed suite. The bedroom also includes hardwood cabinet doors with slow-close hidden hinges and the StowMax storage system.
Does the Axiom Imperium come with solar?
Yes, every Imperium comes standard with a 200-watt solar panel paired with a 2,000-watt inverter, plus battery and solar disconnects, all part of the Essential Package. A second 190-watt solar panel is available as an option for buyers who want additional off-grid range. A 6 kW LP generator is also available as an option.
What is the kitchen like in the Axiom Imperium?
The Imperium kitchen pairs solid-surface countertops with the Ultimate Kitchen Sink, a 22-cubic-foot 110V residential refrigerator, hardwood cabinet doors with slow-close hidden hinges, and the Fogotti on-demand water heater. A Furrion dishwasher is available as an option. The I2900RK and I3800RPMS both use rear-kitchen layouts that maximize counter space and storage.
What is the I3800RPMS's self-deploying side patio?
The I3800RPMS includes a self-deploying side patio off the bedroom that extends from the body of the fifth wheel at the touch of a button, creating a private outdoor retreat in seconds. The I3800RPMS also includes a rear patio with a built-in bar area for entertaining. Axiom describes this as an industry-first feature.
How much does an Axiom Imperium cost?
Motor Home Specialist offers industry-leading discount pricing on every new Axiom Imperium for sale, well below MSRP, so you save thousands compared to other Axiom dealers. Pricing varies by floor plan and selected options. Contact MHSRV for current pricing on in-stock units.
Where can I buy an Axiom Imperium?
Motor Home Specialist in Alvarado, Texas is the #1 volume-selling Axiom dealer in the country and stocks one of the largest selections of new and used Axiom Imperium luxury fifth wheels for sale anywhere in the country. MHSRV serves Imperium buyers nationwide and offers in-house financing, trade-ins, and full-service support after the sale.
Manufacturer options, features, colors, etc. can all change without notice and MHSRV assumes no responsibility for the changes or possible errors in information provided by the manufacturer. All weights and measurements are approximate and not guaranteed to be 100% accurate. For the latest information be sure to check with your salesperson and/or the coach manufacturer and verify before purchase.
