Skip to main contentSkip to navigation
RV Envy
RV floor plans
Inventory
Dealers
Dashboard
  • Class A motorhomes
  • Class C motorhomes
  • Class B vans
  • Fifth wheel trailers
  • Travel trailers
  • Pop-up campers
  • Advanced search
  • Floor plan wizard
  • Inventory

Browse popular layouts & features

Class A motorhomes

  • … with bunk beds
  • … with two bedrooms
  • … with bath and a half
  • … with two full bathrooms
  • … with bunk over cab
  • … with rear bathroom
Browse all features →

Class B vans

  • … with King size bed
  • … with rear twin beds
  • … with Murphy bed
  • … with rear bathroom
  • … with dual twin beds
Browse all features →

Class C motorhomes

  • … with bunk over cab
  • … with bunk beds
  • … with rear bathroom
  • … with rear twin beds
  • … with Murphy bed
  • … with outdoor kitchen
  • … with outdoor TV
Browse all features →

Fifth wheel trailers

  • … with bath and a half
  • … with two bathrooms
  • … with bunk beds
  • … with two bedrooms
  • … with side patio
  • … with rear patio
  • … with outdoor kitchen
  • … with washer/dryer
  • … with front living
Browse all features →

Travel trailers

  • … with bunk beds
  • … with two bedrooms
  • … with Murphy bed
  • … with outdoor kitchen
  • … with rear bath
  • … with front bedroom
Browse all features →

Popup campers

  • under $10k
  • under $15k
  • under 2,000 lbs
  • under 3,000 lbs
Browse all features →

RV dealers by metro area

Los AngelesDallas–Fort WorthHoustonAtlantaPhoenixTampa BayOrlandoDenverChicagoSeattleNashvilleTorontoBrowse all metro areas →

Explore

  • RV floor plans
  • Browse inventory
  • Dealers
  • Shopping tips

Company

  • About
  • Our story
  • Contact

For dealers

  • Dealer websites & CRM
  • Dealer insights

Join our mailing list

We don't send much, but you won't want to miss it!

RV Envy

The RV search engine. Find your dream RV.

We do our best to keep listing details accurate, but pricing, specifications, and availability come from third-party sources and can change without notice. We can't guarantee accuracy, so please confirm the details with the dealer before making any decisions. See something inaccurate? Contact us.

© 2026 RV Envy. All rights reserved.

For AI agentsPrivacyTerms
Dashboard
    1. Home
    2. Fifth wheel trailers
    3. Genesis Supreme
    4. Sandsport
    5. 3818SIKS
    Genesis Supreme Sandsport 3818SIKS exterior

    Genesis Supreme Sandsport 3818SIKS

    Browse inventory
    Genesis Supreme Sandsport 3818SIKS floor plan
    Genesis Supreme Sandsport 3818SIKS floor plan

    Key facts

    Length
    39 ft 10 in
    Max weight
    17,500 lbs
    Sleeps
    4

    AI summary

    The 3818SIKS stands out immediately with its flipped axles eliminating wheelwells entirely, giving you a true flat floor from wall to wall, a big deal in a toy hauler where you're loading and moving gear. At 102" wide, the living room slide carries a sofa, refrigerator, and pantry cabinet, while two swivel/rocker chairs and a 50" TV on a swivel bracket round out a living space that feels more like a cabin than a trailer. The built-in 4.5KW Yamaha generator with transfer switch means you're not relying on campground hookups, and dual 30-lb LP tanks, a 35,000 BTU furnace, and a rear screen wall make it a genuine four-season contender. Thoughtful lighting touches. Inset coffered ceiling panels with LED accents, countertop edge lighting, and LED rope lights along the valances. Keep the interior from feeling like an afterthought.

    Find a Genesis Supreme Sandsport 3818SIKS

    See it in person or find a great deal nationwide.
    Browse inventory

    Similar floor plans

    Other fifth wheel trailers floor plans (around 39 ft 10 in), similar in size and price to the Sandsport 3818SIKS.

    Forest River Wildcat 260RD exterior

    Forest River Wildcat 260RD

    MSRP$77,278

    12 units available

    Forest River Wildcat 260RD floor plan
    Max weight

    11,860 lbs

    Length

    31 ft 6 in

    Sleeps

    4

    Gulf Stream Sedona 28CBF exterior

    Gulf Stream Sedona 28CBF

    MSRP$37,919
    No floor plan photo
    Max weight

    9,790 lbs

    Length

    31 ft 6 in

    Sleeps

    5

    Heartland Pioneer PI 290 exterior

    Heartland Pioneer PI 290

    MSRPTBD
    Heartland Pioneer PI 290 floor plan
    Max weight

    9,460 lbs

    Length

    31 ft 6 in

    Sleeps

    4

    Forest River Impression 238RL exterior

    Forest River Impression 238RL

    MSRPTBD
    Forest River Impression 238RL floor plan
    Max weight

    9,700 lbs

    Length

    31 ft 6 in

    Sleeps

    6

    CrossRoads Cruiser Aire 28RL exterior

    CrossRoads Cruiser Aire 28RL

    MSRPTBD

    1 unit available

    CrossRoads Cruiser Aire 28RL floor plan
    Max weight

    7,980 lbs

    Length

    31 ft 6 in

    Sleeps

    5

    Coachmen Chaparral Lite 274RLS exterior

    Coachmen Chaparral Lite 274RLS

    MSRPTBD
    Coachmen Chaparral Lite 274RLS floor plan
    Max weight

    9,900 lbs

    Length

    31 ft 6 in

    Sleeps

    6

    CrossRoads Volante 270EL exterior

    CrossRoads Volante 270EL

    MSRPTBD
    CrossRoads Volante 270EL floor plan
    Max weight

    10,500 lbs

    Length

    31 ft 6 in

    Sleeps

    5

    CrossRoads Sunset Trail Reserve SF29BH exterior

    CrossRoads Sunset Trail Reserve SF29BH

    MSRPTBD
    CrossRoads Sunset Trail Reserve SF29BH floor plan
    Max weight

    10,530 lbs

    Length

    31 ft 6 in

    Sleeps

    8

    Other Sandsport floor plans

    Genesis Supreme Sandsport 2814SIKS

    MSRPTBD

    1 unit available

    Genesis Supreme Sandsport 2814SIKS floor plan
    Max weight

    14,000 lbs

    Length

    34 ft 9 in

    Sleeps

    6

    Genesis Supreme Sandsport 2815SCR

    MSRPTBD
    Genesis Supreme Sandsport 2815SCR floor plan
    Max weight

    14,000 lbs

    Length

    34 ft 9 in

    Sleeps

    4

    Genesis Supreme Sandsport 2815SCRT

    MSRPTBD
    Genesis Supreme Sandsport 2815SCRT floor plan
    Max weight

    13,800 lbs

    Length

    32 ft 10 in

    Sleeps

    4

    Genesis Supreme Sandsport 3016SIKS

    MSRPTBD
    Genesis Supreme Sandsport 3016SIKS floor plan
    Max weight

    15,000 lbs

    Length

    36 ft 10 in

    Sleeps

    6

    Genesis Supreme Sandsport 3219SCRXL

    MSRPTBD
    Genesis Supreme Sandsport 3219SCRXL floor plan
    Max weight

    15,000 lbs

    Length

    36 ft

    Sleeps

    4

    Genesis Supreme Sandsport 3317SCKXL

    MSRPTBD
    Genesis Supreme Sandsport 3317SCKXL floor plan
    Max weight

    15,000 lbs

    Length

    36 ft 10 in

    Sleeps

    4

    Genesis Supreme Sandsport 4025SCRPXL

    MSRPTBD
    Genesis Supreme Sandsport 4025SCRPXL floor plan
    Max weight

    17,500 lbs

    Length

    42 ft 6 in

    Sleeps

    5

    Genesis Supreme Sandsport 4025SCRXL

    MSRPTBD
    Genesis Supreme Sandsport 4025SCRXL floor plan
    Max weight

    17,500 lbs

    Length

    43 ft 2 in

    Sleeps

    5

    Genesis Supreme Sandsport Garage SCK405

    MSRPTBD
    Genesis Supreme Sandsport Garage SCK405 floor plan
    Max weight

    17,500 lbs

    Length

    42 ft

    Sleeps

    9

    Genesis Supreme Sandsport Limited SCR280

    MSRPTBD
    Genesis Supreme Sandsport Limited SCR280 floor plan
    Length

    32 ft

    Sleeps

    6

    View all Sandsport floor plans →
    Genesis Supreme Sandsport 3818SIKS overview
    Genesis Supreme Sandsport 3818SIKS exterior

    Key facts

    Length
    39 ft 10 in
    Max weight
    17,500 lbs
    Sleeps
    4

    Specs

    Dimensions

    Length
    39 ft 10 in
    Slideouts
    2
    Axles
    2

    Tanks & capacities

    Fresh water
    160 gal
    Gray water
    50 gal
    Black water
    50 gal

    Weight & towing

    Dry weight
    12,640 lbs
    GVWR
    17,500 lbs
    Hitch weight
    2,990 lbs
    3/4 ton truck required
    New Ford F-250, RAM 2500, Sierra 2500, or bigger

    Based on overall weight and weight directly on tow vehicle's hitch and a new model tow vehicle. Please consult with a professional.

    Accommodations

    Sleeps
    4
    Download brochure
    On this page...