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View New & Used Keystone RVs for Sale in or near Mountainside, New Jersey

64 listings available

Find your perfect Keystone rv for sale from the search results below. Contact a member to gain further information. Let our member network help you find your dream unit so you can further enjoy the rv lifestyle!
New 2024 Keystone Cougar Half-Ton East 26RBS available in Souderton, Pennsylvania

New 2024 Keystone Cougar Half-Ton East 26RBS

New Travel Trailer in Souderton, Pennsylvania 18964

Check out this couples trailer with large rear bath! 

  • In Stock
  • New Arrival
  • Length: 29' 11"
  • Dry Weight: 6,696 lbs
  • # Slideouts: 1
  • Sleeping Cap: 6
New 2022 Keystone Cougar Half-Ton 24RDS available in Souderton, Pennsylvania

New 2022 Keystone Cougar Half-Ton 24RDS

New Fifth Wheel in Souderton, Pennsylvania 18964

Gorgeous unit with Solar, Fireplace, 12V Refrigerator, Theatre seating! 

  • Sale
  • 360 Tour
  • In Stock
  • Length: 28' 11"
  • Dry Weight: 7,369 lbs
  • # Slideouts: 2
  • Sleeping Cap: 6
New 2023 Keystone Avalanche 360FL available in Souderton, Pennsylvania

New 2023 Keystone Avalanche 360FL

New Fifth Wheel in Souderton, Pennsylvania 18964

WOW what a layout out!  This unit is a 2023 and ready for camping!

  • Sale
  • Blow Out Price
  • In Stock
  • New Arrival
  • Length: 40' 1"
  • Dry Weight: 13,875 lbs
  • # Slideouts: 5
  • Sleeping Cap: 6
New 2024 Keystone Cougar 316RLS available in Souderton, Pennsylvania

New 2024 Keystone Cougar 316RLS

New Fifth Wheel in Souderton, Pennsylvania 18964

WOW fully body painted cougar!  One of the best layouts on the market!

    • Length: 35' 8"
    • Dry Weight: 10,679 lbs
    • # Slideouts: 3
    • Sleeping Cap: 6
    Used 2021 Keystone Cougar Half-Ton 34TSB available in Souderton, Pennsylvania

    Used 2021 Keystone Cougar Half-Ton 34TSB

    Used Travel Trailer in Souderton, Pennsylvania 18964

    Like New pre owned 34TSB!   Bought here new, one owner and fully loaded.

    • New Arrival
    • Length: 37' 5"
    • Dry Weight: 8,563 lbs
    • # Slideouts: 3
    • Sleeping Cap: 11
    Used 2019 Keystone Avalanche 375RD available in Souderton, Pennsylvania

    Used 2019 Keystone Avalanche 375RD

    Used Fifth Wheel in Souderton, Pennsylvania 18964

    Awesome 5 slide layout sold and serviced at ivcc

    • In Stock
    • Length: 41' 1"
    • Dry Weight: 13,416 lbs
    • # Slideouts: 5
    • Sleeping Cap: 6
    New 2024 Keystone Cougar Half-Ton 23MLE available in Souderton, Pennsylvania

    New 2024 Keystone Cougar Half-Ton 23MLE

    New Fifth Wheel in Souderton, Pennsylvania 18964

    awesome new layout just arrived!

    • In Stock
    • New Arrival
    • Length: 27' 11"
    • Dry Weight: 7,678 lbs
    • # Slideouts: 2
    • Sleeping Cap: 6
    Used 2019 Keystone Cougar Half-Ton East 34TSB available in Souderton, Pennsylvania

    Used 2019 Keystone Cougar Half-Ton East 34TSB

    Used Travel Trailer in Souderton, Pennsylvania 18964

    Check out this awesome layout with large back bunkroom.  

    • Recent Trade-In
    • Sale Pending
    • Length: 38' 1"
    • Dry Weight: 8,548 lbs
    • # Slideouts: 3
    • Sleeping Cap: 11
    New 2024 Keystone Cougar Sport 2700BH available in Souderton, Pennsylvania

    New 2024 Keystone Cougar Sport 2700BH

    New Fifth Wheel in Souderton, Pennsylvania 18964

    Awesome new floor plan from cougar at a great price!  lite weight and ready for camping

    • 360 Tour
    • New Arrival
    • Length: 32' 3"
    • Dry Weight: 7,580 lbs
    • # Slideouts: 1
    • Sleeping Cap: 9
    New 2024 Keystone Cougar 260MLE available in Souderton, Pennsylvania

    New 2024 Keystone Cougar 260MLE

    New Fifth Wheel in Souderton, Pennsylvania 18964

    WOW this unit is special!  Midnight Edition full body paint!

      • Length: 30' 11"
      • Dry Weight: 9,725 lbs
      • # Slideouts: 2
      • Sleeping Cap: 4
      New 2024 Keystone Avalanche 338GK available in Souderton, Pennsylvania

      New 2024 Keystone Avalanche 338GK

      New Fifth Wheel in Souderton, Pennsylvania 18964

      • 360 Tour
      • Available to Order
      • Length: 38' 0"
      • Dry Weight: 12,523 lbs
      • # Slideouts: 4
      • Sleeping Cap: 4
      New 2023 Keystone Passport SL Series 268BH available in Souderton, Pennsylvania

      New 2023 Keystone Passport SL Series 268BH

      New Travel Trailer in Souderton, Pennsylvania 18964

      • Sale
      • Length: 30' 10"
      • Dry Weight: 5,862 lbs
      • # Slideouts: 1
      • Sleeping Cap: 10
      New 2023 Keystone Cougar 320RDS available in Souderton, Pennsylvania

      New 2023 Keystone Cougar 320RDS

      New Fifth Wheel in Souderton, Pennsylvania 18964

      Check out this awesome rear den layout! This new model is a MUST SEE!  

      • Sale
      • 360 Tour
      • In Stock
      • New Arrival
      • Length: 36' 10"
      Used 2020 Keystone Passport SL Series East 199ML available in Souderton, Pennsylvania

      Used 2020 Keystone Passport SL Series East 199ML

      Used Travel Trailer in Souderton, Pennsylvania 18964

      Check out this awesome layout with Murphy bed and u-shaped dinette.  Large rear bath! 

      • Recent Trade-In
      • Length: 22' 9"
      • Dry Weight: 4,016 lbs
      • # Slideouts: 1
      • Sleeping Cap: 4
      Used 2018 Keystone Cougar Half-Ton 27RES available in Souderton, Pennsylvania

      Used 2018 Keystone Cougar Half-Ton 27RES

      Used Travel Trailer in Souderton, Pennsylvania 18964

      Very nice pre owned unit ready for the road!

      • Sale
      • Recent Trade-In
      • Length: 27' 0"
      • Dry Weight: 6,430 lbs
      • # Slideouts: 1
      • Sleeping Cap: 6
      New 2024 Keystone Avalanche 378BH available in Souderton, Pennsylvania

      New 2024 Keystone Avalanche 378BH

      New Fifth Wheel in Souderton, Pennsylvania 18964

      Fresh new 378 IN STOCK!

      • In Stock
      • Length: 40' 7"
      • Dry Weight: 13,820 lbs
      • # Slideouts: 4
      • Sleeping Cap: 10
      New 2024 Keystone Cougar Half-Ton East 22MLS available in Souderton, Pennsylvania

      New 2024 Keystone Cougar Half-Ton East 22MLS

      New Travel Trailer in Souderton, Pennsylvania 18964

      This unit comes with both a dinette and theatre seating.  It also has solar panel, lithium batteries, and a tankless water heater!  

      • 360 Tour
      • In Stock
      • Length: 26' 10"
      • Dry Weight: 5,794 lbs
      • # Slideouts: 1
      • Sleeping Cap: 4
      New 2023 Keystone Passport Grand Touring 3401QD GT available in Souderton, Pennsylvania

      New 2023 Keystone Passport Grand Touring 3401QD GT

      New Travel Trailer in Souderton, Pennsylvania 18964

      WOW check out that bunk house!  All four double bunks with plenty of drawer space to put clothes.  Perfect for your family and still room to have guests!  Has solar, 12v fridge, and more! 

      • Sale
      • 360 Tour
      • In Stock
      • Length: 35' 0"
      • # Slideouts: 1
      • Sleeping Cap: 14
      Used 2010 Keystone Cougar 31SQB available in Souderton, Pennsylvania

      Used 2010 Keystone Cougar 31SQB

      Used Travel Trailer in Souderton, Pennsylvania 18964

        • Length: 35' 8"
        • Dry Weight: 6,679 lbs
        • Sleeping Cap: 8
        Used 2017 Keystone Passport Ultra Lite Grand Touring 3320BH available in Souderton, Pennsylvania

        Used 2017 Keystone Passport Ultra Lite Grand Touring 3320BH

        Used Travel Trailer in Souderton, Pennsylvania 18964

        Awesome family layout with large bunkhouse and tons of storage! Slide toppers added on two slides.  

        • Sale
        • Recent Trade-In
        • Length: 36' 10"
        • Dry Weight: 6,586 lbs
        • # Slideouts: 3
        • Sleeping Cap: 11
        New 2024 Keystone Avalanche 390DS available in Souderton, Pennsylvania

        New 2024 Keystone Avalanche 390DS

        New Fifth Wheel in Souderton, Pennsylvania 18964

        WOW what a unit! Two master suites with two full baths.  Large loft for the kids! 

        • Sale
        • 360 Tour
        • In Stock
        • New Arrival
        • Length: 42' 11"
        • Dry Weight: 14,384 lbs
        • # Slideouts: 4
        • Sleeping Cap: 6
        New 2023 Keystone Passport SL Series 219BH available in Souderton, Pennsylvania

        New 2023 Keystone Passport SL Series 219BH

        New Travel Trailer in Souderton, Pennsylvania 18964

        • Sale
        • 360 Tour
        • In Stock
        • Length: 25' 6"
        • Dry Weight: 4,672 lbs
        • Sleeping Cap: 8
        Used 2014 Keystone Sprinter 300KBS available in Souderton, Pennsylvania

        Used 2014 Keystone Sprinter 300KBS

        Used Travel Trailer in Souderton, Pennsylvania 18964

        • Sale
        • Sale Pending
        • Length: 34' 5"
        • Dry Weight: 7,880 lbs
        • # Slideouts: 2
        • Sleeping Cap: 6
        New 2024 Keystone Cougar Half-Ton 29RLISE available in Souderton, Pennsylvania

        New 2024 Keystone Cougar Half-Ton 29RLISE

        New Fifth Wheel in Souderton, Pennsylvania 18964

        Lightest weight triple slide fifth wheel out there!  Stop by for a tour!

          • Length: 32' 9"
          • Dry Weight: 8,893 lbs
          • # Slideouts: 3
          • Sleeping Cap: 4
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