2026 KEYSTONE COUGAR MIDNIGHT EDITION 350LLK

Core Specifications — 2026 Keystone Cougar 350 LLK

  • Type:
    Fifth Wheel RV (Premium Cougar, available with Midnight Edition package)
  • Sleeping
    Capacity: Sleeps up to 4 comfortably
  • Length:
    ~39 ft 3 in
  • Dry
    Weight: ~11,945 lbs
  • Fresh
    Water Capacity: 75 gal
  • Gray/Black
    Tanks: ~76 gal / 38 gal
  • Propane
    Tanks: Dual tanks (~60–30 lbs each)
  • Refrigerator:
    16 cu ft 12V
  • AC: 15,000
    BTU ducted system standard
  • Electrical:
    50 amp service
  • Slide
    Outs: 4 slide-outs for maximum living space

Midnight Edition Exterior & Aesthetic Highlights

The Midnight Edition is an upgraded visual and performance
package available on Premium Cougar models like the 350 LLK:

  • Bold
    Full-Body Automotive Paint: Black Onyx or Phantom Gray automotive-grade
    finish with KeyShieldâ„¢ protection for resistance to peeling/fading on the
    road
  • Frameless
    Windows & Blackout Rims: Sleek, modern exterior look
  • Anti-Lock
    Braking System (ABS): Enhanced control and safety while towing
  • Blue
    LED Exterior Accent Lighting: Chassis, awning, and front cap accents for
    style and visibility
  • Enhanced
    Solar & Battery: SolarFlex Discoverâ„¢ 440i (or options) and lithium-ion
    batteries for off-grid capability
  • Second
    AC Unit: Additional cooling capacity for hotter climes or larger living
    areas

Interior & Comfort Features

Living & Entertainment

  • Spacious
    rear luxury kitchen with wrap-around counter space, large sink,
    substantial prep room, and residential-style appliances
  • L-shaped
    sofa and central living area — excellent for comfort and socializing
  • 50″ HD
    Smart TV and dual-zone Bluetooth audio system for entertainment
  • Heat
    & massage theater seats on many models

Kitchen

  • Furrion
    21″ Oven with 3 burner cooktop and oven drawer
  • 30″
    residential microwave
  • Large
    refrigerator and plenty of storage

Bedroom & Bath

  • Private
    bedroom with queen bed (king optional on many builds) and under-bed
    storage
  • Washer/dryer
    prep and large wardrobe space
  • Spacious
    bathroom with a shower with seat and solid surface countertops

Convenience & Utility

  • Tankless
    on-demand water heater for continuous hot water
  • Power
    Watchdogâ„¢ Safeview Smart RV Power Inlet with 50 amp for electrical
    convenience
  • 12V
    charging stations throughout

 Construction &
Durability

  • 5-sided
    aluminum superstructure for strength and weather resistance
  • AlphaPly
    roof with limited lifetime warranty
  • Vent-All
    window system for better airflow and insulation
  • Climate
    Guardâ„¢ package for extended season camping (insulation, heated tanks,
    radiant barriers, etc.)
  • Auto 4-point
    electric leveling system for easy setup

Towing & Mobility Enhancements

  • MaxTurnâ„¢
    Technology frame design for improved turning radius
  • Road
    Armorâ„¢ shock absorbing hitch and equalizer for smoother towing
  • Hitch
    Visionâ„¢ towing assist feature (camera prep)

Summary

The 2026 Keystone Cougar Midnight Edition 350 LLK is a premium,
feature-rich fifth wheel
blending strong structural build, upscale interior
comfort, advanced towing tech, and a striking aesthetic package. It’s ideal for
couples or small families who want extended-stay capability and a modern RV
experience.

 

Location Idabel, OK
Condition NEW
Status AVAILABLE
Stock # KEY503770
Year 2026
Make Keystone
Model Cougar Midnight Edition
Trim 350LLK

Specifications

General
Class Fifth Wheel
Length (FT/IN) 39' 3"
Total Gray Water Tank Capacity (GAL) 76
Number Of Slideouts 4
Max Sleeping Count 4
Washer/Dryer Prep Yes
Hitch Weight (LBS) 2200 LBS
Dry Weight (LBS) 11945 LBS
Mileage 0
Vin 4YDFCGT22T2503770
Other Specifications
Width (IN/MM) 0
Height (IN/MM) 13.4
Number Of Awnings 2
Refrigerator Size 16 CU FT 12V Compressor
Number Of Sofas 1
Height (IN) 0


Come Experience the Rocky Ridge RV Difference!

When you step into Rocky Ridge RV, you'll quickly realize that we stand out from the crowd in the RV industry. We are dedicated to providing you with an exceptional experience, and here's why we're unlike any other:

No Surprise Costs: At Rocky Ridge RV, we believe in transparency. That's why we proudly offer no prep fees, no destination fees, and absolutely no hidden charges of any kind. When you shop with us, you can trust that the price you see is the price you pay. We're committed to ensuring you have complete clarity about your RV purchase.

Battery Included: We go the extra mile to ensure your RV is ready for adventure right from the start. That's why we include your battery in the price, at no additional cost. We're not about nickel-and-diming you; we're about providing you with an RV that's ready to hit the road when you are.

Tailored to Your Needs: Your RV experience should be a reflection of your desires and requirements. At Rocky Ridge RV, we take the time to understand your specific wants and needs. Our dedicated team is focused on ensuring you find the RV that perfectly matches your lifestyle, whether you're a seasoned traveler or a first-time RVer.

So, if you're seeking an RV dealer that values transparency, includes essential features without extra charges, and is genuinely dedicated to your satisfaction, look no further. Come visit us at Rocky Ridge RV and come experience the difference for yourself. Your journey towards RV ownership starts here, with the peace of mind you deserve.

*Rocky Ridge RV makes every effort to be accurate in all of our listings, however, sometimes errors may occur. Please contact the dealership to verify the availability of the RV, as well as the accuracy of any features shown in the listing.



Ride Digital