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View New & Used Keystone RVs for Sale in or near Middletown, Delaware

156 listings match your search

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!
Used 2021 Keystone Outback Ultra Lite 221UMD available in Willow Street, Pennsylvania
25

Used 2021 Keystone Outback Ultra Lite 221UMD

Used Travel Trailer in Willow Street, Pennsylvania 17584

For Sale by RV Value Mart - Willow Street

Keystone Outback Ultra Lite travel trailer 221UMD highlights: Semi-Private Bedroom 19' Awning Sofa Sleeper 40" TV Laundry Chute SolidStep Entry Steps With the large slide that has been included in this Outback Ultra Lite travel trailer, you will have plent ...

  • Sale

$21,966

    Used 2021 Keystone Cougar HALF TON 22MLSWE available in Elizabethtown, Pennsylvania
    26

    Used 2021 Keystone Cougar HALF TON 22MLSWE

    Used Travel Trailer in Elizabethtown, Pennsylvania 17022

    For Sale by General RV Center

    With a king-size bed, this Cougar Half-Ton travel trailer shows that you can still be comfortable even while you're away from home! The bed has wardrobes and nightstands on either side, and it also has a privacy curtain to section it off from the rest of t ...

    • Sale

    $23,998

      Used 2021 Keystone Montana 3761FL available in Newfield, New Jersey
      34

      Used 2021 Keystone Montana 3761FL

      Used Fifth Wheel in Newfield, New Jersey 08344

      For Sale by Crossroads Trailer Sales, Inc.

      Keystone Montana 3761FL Fifth Wheel — Luxury Towable RV Overview Overview Discover the pinnacle of travel trailer luxury with the 2021 Keystone Montana 3761FL, a premier towable RV delivering comfort, space, and dependable performance on long journey ...

      • Sale
      • Consignment
      • In Stock
      • New Arrival

      $65,900

        New 2026 Keystone Cougar Half-Ton 22MLS available in Milford North, Delaware
        17

        New 2026 Keystone Cougar Half-Ton 22MLS

        New Travel Trailer in Milford North, Delaware 19963

        For Sale by Delmarva RV Center (Milford North)

        2026 COUGAR BY KEYSTONE 22MLS   POWER AWNING DRY WEIGHT 6000LBS ONE SLIDE DUCTED ROOF A/C SLEEPS 4 FRONT BED SIDE BATHROOM DINETTE DOUBLE DOOR REFRIGERATOR FLATSCREEN TV  RECLINING SEATS   WE WANT YOUR BUSINESS FOLKS!! WE TAKE ALL TYPES OF T ...

        • Sale
        • In Stock
        • New Arrival

        $39,995

          Used 2024 Keystone Cougar Half-Ton 33RLI available in Newfield, New Jersey
          27

          Used 2024 Keystone Cougar Half-Ton 33RLI

          Used Travel Trailer in Newfield, New Jersey 08344

          For Sale by Crossroads Trailer Sales, Inc.

          2024 Towable RV Travel Trailer — Floorplan 33RLI (Stock 7536) This 2024 travel trailer is a towable recreational vehicle designed for family adventures, weekend escapes, and cross-country road trips. Featuring the 33RLI floorplan, it blends practical ...

          • Sale
          • In Stock
          • New Arrival
          • Special
          • Recent Trade-In

          $42,900

            Used 2021 Keystone Coleman Lantern 2515RL available in Milford, Delaware
            17

            Used 2021 Keystone Coleman Lantern 2515RL

            Used Travel Trailer in Milford, Delaware 19963

            For Sale by Delmarva RV Center

            2021 KEYSTONE COLEMAN LANTERN 2515RL   POWER AWNING DRY WEIGHT 5730LBS ONE SLIDE DUCTED ROOF A/C SLEEPS 6 FRONT BEDROOM WALKTHROUGH BATHROOM DINETTE DOUBLE DOOR REFRIGERATOR FLATSCREEN TV  FIREPLACE   WE WANT YOUR BUSINESS FOLKS!! WE TAKE AL ...

            • Sale
            • In Stock
            • New Arrival
            • Recent Trade-In

            $18,900

              New 2025 Keystone Arcadia 248SLRE available in Elizabethtown, Pennsylvania
              28

              New 2025 Keystone Arcadia 248SLRE

              New Fifth Wheel in Elizabethtown, Pennsylvania 17022

              For Sale by General RV Center

              Experience the perfect blend of comfort and adventure with the 2025 Keystone Arcadia Super Lite 248SLRE. This thoughtfully designed RV offers a spacious and inviting interior, ideal for families or couples seeking a cozy retreat on the road. The rear livin ...

              • Sale

              $44,999

                New 2026 Keystone Cougar Half-Ton 28RLI available in Milford North, Delaware
                25

                New 2026 Keystone Cougar Half-Ton 28RLI

                New Fifth Wheel in Milford North, Delaware 19963

                For Sale by Delmarva RV Center (Milford North)

                2026 COUGAR BY KEYSTONE 28RLI   POWER AWNING DRY WEIGHT 9170LBS 2 SLIDES DUCTED ROOF A/C SLEEPS 4 FRONT BEDROOM SIDE BATHROOM FIREPLACE FLATSCREEN TV  PANTRY DOUBLE DOOR  REFRIGERATOR   WE WANT YOUR BUSINESS FOLKS!! WE TAKE ALL TYPES OF ...

                • Sale
                • Coming Soon
                • On Order

                $54,995

                  New 2026 Keystone Cougar Half-Ton 22RBS available in Milford North, Delaware
                  19

                  New 2026 Keystone Cougar Half-Ton 22RBS

                  New Travel Trailer in Milford North, Delaware 19963

                  For Sale by Delmarva RV Center (Milford North)

                  2026 COUGAR HALF-TON BY KEYSTONE MODEL 22RBS   POWER AWNING  ONE SLIDE DRY WEIGHT 5840LBS 30 AMP POWER SUPPLY DUCTED ROOF A/C SLEEPS 2 RECLINING SEATS CORNER BATHROOM FLATSCREEN TV  DOUBLE DOOR REFRIGERATOR       WE WANT YOUR ...

                  • Sale
                  • In Stock
                  • New Arrival

                  $39,995

                    Used 2021 Keystone Hideout 28BHS available in Elizabethtown, Pennsylvania

                    Used 2021 Keystone Hideout 28BHS

                    Used Travel Trailer in Elizabethtown, Pennsylvania 17022

                    For Sale by General RV Center

                    Keystone Hideout travel trailer 28BHS highlights: Double-Size Bunks Dual Entry U-Shaped Dinette Laundry Chute Outdoor Kitchen This Keystone Hideout travel trailer has plenty of space for a larger family, or one that likes to travel with friends, because of ...

                    • Sale

                    $20,998

                      Used 2023 Keystone Cougar Half-Ton 23MLE available in Milford, Delaware
                      19

                      Used 2023 Keystone Cougar Half-Ton 23MLE

                      Used Fifth Wheel in Milford, Delaware 19963

                      For Sale by Delmarva RV Center

                      2023 COUGAR HALF TON BY KEYSTONE 23MLE   POWER AWNING DRY WEIGHT 7820LBS ONE SLIDE DUCTED ROOF A/C SLEEPS 4 OUTSIDE REFRIGERATOR PANTRY DINETTE DOUBLE DOOR REFRIGERATOR FLATSCREEN TV  FRONT BEDROOM  SIDE BATHROOM   WE WANT YOUR BUSINESS ...

                      • Sale
                      • In Stock
                      • New Arrival
                      • Recent Trade-In

                      $35,995

                        Used 2018 Keystone Springdale Summerland Mini 1750RD Front East-West Queen Bed, Rear U-Dinette available in Williamstown, New Jersey
                        37

                        Used 2018 Keystone Springdale Summerland Mini 1750RD Front East-West Queen Bed, Rear U-Dinette

                        Used Travel Trailer in Williamstown, New Jersey 08094

                        For Sale by White Horse RV Center

                          Choosing White Horse RV Center means more than just buying an RV; it’s about investing in a seamless, enjoyable experience. With over 50 years of expertise, we ensure your RV journey is fun and hassle-free. Our RV Essentials Package and transp ...

                        • Sale
                        • Blow Out Price
                        • Special

                        $12,495

                          New 2026 Keystone Arcadia 27SBH available in Elizabethtown, Pennsylvania
                          31

                          New 2026 Keystone Arcadia 27SBH

                          New Fifth Wheel in Elizabethtown, Pennsylvania 17022

                          For Sale by General RV Center

                          This fifth wheel with an open concept kitchen and living area is sure to feel just like home! You can relax with friends and family around the U-shaped dinette or on the tri-fold sleeper sofa, and there is a TV/radio in this space for entertainment. The re ...

                          • Sale

                          $39,999

                            Used 2018 Keystone Cougar Half-Ton Series 32RLI available in Willow Street, Pennsylvania
                            26

                            Used 2018 Keystone Cougar Half-Ton Series 32RLI

                            Used Travel Trailer in Willow Street, Pennsylvania 17584

                            For Sale by RV Value Mart - Willow Street

                            Keystone Cougar Half-Ton Series travel trailer 32RLI highlights: Triple Slides Rear Living Kitchen Island Two Awnings Ground Control Power Jack ThisCougar Half-Ton Series travel trailer32RLIwill provide plenty of room for relaxation, entertaining, and slee ...

                            • Sale

                            $24,966

                              Used 2018 Keystone Outback 330RL available in Willow Street, Pennsylvania
                              28

                              Used 2018 Keystone Outback 330RL

                              Used Travel Trailer in Willow Street, Pennsylvania 17584

                              For Sale by RV Value Mart - Willow Street

                              Take your camping up a notch with this triple slide out travel trailer. This Outback by Keystone RV also features a rear living area, a kitchen island, a front master suite, plus an outside kitchen! Before you step foot inside 330RL, be sure to check out t ...

                              • Sale

                              $23,999

                                Used 2022 Keystone Bullet 261RBS available in Willow Street, Pennsylvania
                                27

                                Used 2022 Keystone Bullet 261RBS

                                Used Travel Trailer in Willow Street, Pennsylvania 17584

                                For Sale by RV Value Mart - Willow Street

                                Keystone Bullet travel trailer 261RBS highlights: Rear Bathroom 68" Tri-Fold Sofa Laundry Chute Outside Kitchen 19' Electric Awning Head out to the state park to meet your friends or enjoy a relaxing weekend with your favorite person! Or maybe you enjoy wa ...

                                • Sale

                                $25,966

                                  Used 2019 Keystone Hideout 179LHS Dinette Slide, Front Queen, Rear Bath available in Williamstown, New Jersey
                                  33

                                  Used 2019 Keystone Hideout 179LHS Dinette Slide, Front Queen, Rear Bath

                                  Used Travel Trailer in Williamstown, New Jersey 08094

                                  For Sale by White Horse RV Center

                                  **This RV is Route 66 CERTIFIED with 66-DAY LIMITED WARRANTY** Choosing White Horse RV Center means more than just buying an RV; it’s about investing in a seamless, enjoyable experience. With over 50 years of expertise, we ensure your RV journey is f ...

                                  • Sale
                                  • Blow Out Price
                                  • Special
                                  • Under Warranty

                                  $12,995

                                    Used 2019 Keystone Passport 175BH available in Milford, Delaware
                                    16

                                    Used 2019 Keystone Passport 175BH

                                    Used Travel Trailer in Milford, Delaware 19963

                                    For Sale by Delmarva RV Center

                                    2019 PASSPORT BY KEYSTONE MODEL 175BH    DRY WEIGHT 3255LBS POWER AWNING W/LED LIGHTING ROOF A/C SLEEPS 6 SIDE BUNK BEDS FULL DINETTE THAT EASILY CONVERTS INTO A BED REAR BATHROOM WITH TUB/SHOWER FLATSCREEN TV   WE WANT YOUR BUSINESS! WE TAK ...

                                    • Sale
                                    • In Stock
                                    • Recent Trade-In
                                    • Reduced

                                    $9,900

                                      New 2026 Keystone Cougar 350LLK available in Milford, Delaware
                                      24

                                      New 2026 Keystone Cougar 350LLK

                                      New Fifth Wheel in Milford, Delaware 19963

                                      For Sale by Delmarva RV Center

                                      2026 COUGAR BY KEYSTONE 350LLK   POWER AWNING 4 SLIDES DUCTED ROOF A/C DRY WEIGHT 11980LBS CEILING FAN SLEEPS 4 FRONT BEDROOM SIDE BATHROOM LARGE DOUBLE DOOR REFRIGERATOR PANTRY DINETTE FIREPLACE FLATSCREEN TV    WE WANT YOUR BUSINESS FOLKS! ...

                                      • Sale
                                      • In Stock
                                      • New Arrival

                                      $79,995

                                        Used 2019 Keystone Montana 3855BR available in Elizabethtown, Pennsylvania
                                        37

                                        Used 2019 Keystone Montana 3855BR

                                        Used Fifth Wheel in Elizabethtown, Pennsylvania 17022

                                        For Sale by General RV Center

                                        Keystone Montana fifth wheel 3855BR highlights: Bonus Room Loft Free Standing Dinette Residential Refrigerator Outside Kitchen Full-timers love this fifth wheel including the new 20th anniversary edition enhancements! From the bonus room offering a hide-a- ...

                                        • Sale

                                        $49,999

                                          New 2026 Keystone Passport 3300BK available in Elizabethtown, Pennsylvania

                                          New 2026 Keystone Passport 3300BK

                                          New Travel Trailer in Elizabethtown, Pennsylvania 17022

                                          For Sale by General RV Center

                                          Passport delivers ultra-lightweight camping loaded with multi-functional features and best-in-class storage. Passport premium models feature the brand's most spacious floorplans, including vaulted ceilings. A new front cap profile not only adds more interi ...

                                          • Sale

                                          $48,720

                                            Used 2020 Keystone Montana 3791RD available in Elizabethtown, Pennsylvania

                                            Used 2020 Keystone Montana 3791RD

                                            Used Fifth Wheel in Elizabethtown, Pennsylvania 17022

                                            For Sale by General RV Center

                                            Keystone Montana fifth wheel 3791RD highlights: Separate Rear Living Coffee Station Kitchen Island Fireplace Residential Refrigerator Exterior Storage Tray If you want your own space to cook, your own area to watch TV, and your own private bedroom, take a ...

                                            • Sale

                                            $44,999

                                              Used 2015 Keystone Fuzion 342 available in Elizabethtown, Pennsylvania
                                              44

                                              Used 2015 Keystone Fuzion 342

                                              Used Fifth Wheel in Elizabethtown, Pennsylvania 17022

                                              For Sale by General RV Center

                                              A place for the toys to travel securely also becomes additional living space in this Fuzion 342 toy hauler fifth wheel by Keystone RV. Enter the 8' rear ramp door to make loading a breeze into the 12' cargo garage which includes a side man door also. You c ...

                                              • Sale

                                              $38,998

                                                Used 2018 Keystone Cougar 341RKI available in Elizabethtown, Pennsylvania
                                                27

                                                Used 2018 Keystone Cougar 341RKI

                                                Used Fifth Wheel in Elizabethtown, Pennsylvania 17022

                                                For Sale by General RV Center

                                                If you enjoy cooking while camping this rear kitchen is sure to be your favorite space in this Cougar 341RKI fifth wheel by Keystone RV. Other features include triple slides, a kitchen island, dual bath entry doors, plus more! Step inside to see a wide ope ...

                                                • Sale

                                                $29,999

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