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

92 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 Avalanche 322RL available in Milford, Delaware
25

Used 2021 Keystone Avalanche 322RL

Used Fifth Wheel in Milford, Delaware 19963

For Sale by Delmarva RV Center

2021 AVALANCHE BY KEYSTONE 322RL   POWER AWNING DRY WEIGHT 11940LBS 3 SLIDES DUCTED ROOF A/C SLEEPS 4 FRONT BEDROOM SIDE BATHROOM LARGE REFRIGERATOR 2 FLATSCREEN TV'S FIREPLACE   WE WANT YOUR BUSINESS FOLKS!! WE TAKE ALL TYPES OF TRADES!! WE CAN ...

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

$34,900

    New 2026 Keystone Cougar Half-Ton 28BHS available in Milford North, Delaware
    23

    New 2026 Keystone Cougar Half-Ton 28BHS

    New Travel Trailer in Milford North, Delaware 19963

    For Sale by Delmarva RV Center (Milford North)

    2026 COUGAR HALF TON BY KEYSTONE 28BHS   POWER AWNING ONE SLIDE  DRY WEIGHT 7390LBS DUCTED ROOF A/C SLEEPS 8 FRONT BEDROOM SIDE BATHROOM BUNKS  DINETTE DOUBLE DOOR REFRIGERATOR FIREPLACE FLATSCREEN TV  PANTRY WE WANT YOUR BUSINESS FOLKS ...

    • Sale
    • In Stock
    • New Arrival

    $44,995

      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

        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 2023 Keystone Hideout 28RKS available in Milford North, Delaware
          18

          Used 2023 Keystone Hideout 28RKS

          Used Travel Trailer in Milford North, Delaware 19963

          For Sale by Delmarva RV Center (Milford North)

          2023 HIDEOUT BY KEYSTONE 28RKS   POWER AWNING W/LED LIGHTS OUTSIDE KITCHEN DRY WEIGHT 6840LBS ONE SLIDE SLEEPS 4 FRONT BEDROOM SIDE BATHROOM FIREPLACE FLATSCREEN TV  DUCTED ROOF A/C DOUBLE DOOR REFRIGERATOR   WE WANT YOUR BUSINESS FOLKS!! WE ...

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

          $24,900

            New 2026 Keystone Cougar 316RLS available in Milford North, Delaware
            24

            New 2026 Keystone Cougar 316RLS

            New Fifth Wheel in Milford North, Delaware 19963

            For Sale by Delmarva RV Center (Milford North)

            2026 COUGAR BY KEYSTONE 316RLS   POWER AWNING 3 SLIDES DRY WEIGHT 11110LBS DUCTED ROOF A/C CEILING FAN SLEEPS 2 FRONT BEDROOM SIDE BATHROOM LARGE SIDE BY SIDE REFRIGERATOR FLATSCREEN TV  PANTRY  DINETTE FIREPLACE   WE WANT YOUR BUSINESS ...

            • Sale
            • In Stock
            • New Arrival

            $74,995

              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

                New 2026 Keystone Cougar 360MBI available in Milford North, Delaware
                29

                New 2026 Keystone Cougar 360MBI

                New Fifth Wheel in Milford North, Delaware 19963

                For Sale by Delmarva RV Center (Milford North)

                2026 COUGAR BY KEYSTONE 360MBI FIFTH WHEEL   POWER AWNING w/ LED LIGHT STRIP WASHER/DRYER PREP 4 SLIDES 2 DUCTED ROOF A/C'S SLEEPS 8 PEOPLE FRONT MASTER BEDROOM SIDE BATHROOM SIDE BUNK ROOM LOFT AREA DINETTE FIREPLACE FLATSCREEN TV  LARGE REFRIGE ...

                • Sale
                • Coming Soon
                • On Order

                $69,995

                  New 2026 Keystone Cougar Half-Ton 33RLI available in Milford North, Delaware
                  27

                  New 2026 Keystone Cougar Half-Ton 33RLI

                  New Travel Trailer in Milford North, Delaware 19963

                  For Sale by Delmarva RV Center (Milford North)

                  2026 COUGAR HALF TON BY KEYSTONE MODEL 33RLI   POWER AWNING 3 SLIDES DRY WEIGHT 8550LBS 50 AMP POWER SUPPLY DUCTED ROOF A/C SLEEPS 4 FRONT BEDROOM W/KING BED SIDE BATHROOM DOUBLE DOOR REFRIGERATOR PANTRY FIREPLACE FLATSCREEN TV WE WANT YOUR BUSINESS F ...

                  • Sale
                  • In Stock
                  • New Arrival

                  $52,995

                    New 2026 Keystone Cougar 316RLS available in Milford North, Delaware
                    23

                    New 2026 Keystone Cougar 316RLS

                    New Fifth Wheel in Milford North, Delaware 19963

                    For Sale by Delmarva RV Center (Milford North)

                    2026 KEYSTONE COUGAR 316RLS   POWER AWNING DRY WEIGHT 11090LBS 3 SLIDES DUCTED ROOF A/C SLEEPS 4 FRONT BEDROOM SIDE BATHROOM PANTRY FLATSCREEN TV  FIREPLACE   WE WANT YOUR BUSINESS FOLKS!! WE TAKE ALL TYPES OF TRADES!! WE CAN PROVIDE FAST AN ...

                    • Sale
                    • In Stock
                    • New Arrival

                    $67,995

                      New 2026 Keystone Cougar Half-Ton 32BHS available in Milford North, Delaware
                      20

                      New 2026 Keystone Cougar Half-Ton 32BHS

                      New Fifth Wheel in Milford North, Delaware 19963

                      For Sale by Delmarva RV Center (Milford North)

                      2026 KEYSTONE COUGAR HALF TON 32BHS   POWER AWNING FRONT AND REAR ENTRY DOORS 2 SLIDES OUTSIDE KITCHEN DRY WEIGHT 9550LBS DUCTED ROOF A/C SLEEPS 10 FRONT BEDROOM SIDE BATHROOM BUNK ROOM BATH AND  A HALF DINETTE DOUBLE DOOR REFRIGERATOR FLATSCREEN ...

                      • Sale
                      • In Stock
                      • New Arrival

                      $57,995

                        Used 2018 Keystone Cougar XLite 25RES available in Milford North, Delaware
                        19

                        Used 2018 Keystone Cougar XLite 25RES

                        Used Fifth Wheel in Milford North, Delaware 19963

                        For Sale by Delmarva RV Center (Milford North)

                         2018 Keystone Cougar XLite 25RES Fifth Wheel DRY WEIGHT 7035LBS SLEEPS 8 POWER AWNING 2 SLIDES FRONT BEDROOM SIDE BATHROOM DOUBLE DOOR REFRIGERATOR     WE WANT YOUR BUSINESS FOLKS!! WE TAKE ALL TYPES OF TRADES!! WE CAN PROVIDE FAST AND EASY ...

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

                        $16,900

                          Used 2017 Keystone Hideout 299RLDS available in Milford, Delaware
                          20

                          Used 2017 Keystone Hideout 299RLDS

                          Used Fifth Wheel in Milford, Delaware 19963

                          For Sale by Delmarva RV Center

                          2017 HIDEOUT BY KEYSTONE 299RLDS   POWER AWNING 2 SLIDES DUCTED ROOF A/C SLEEPS 4 FRONT BEDROOM SIDE BATHROOM DOUBLE DOOR REFRIGERATOR WE WANT YOUR BUSINESS FOLKS!! WE TAKE ALL TYPES OF TRADES!! WE CAN PROVIDE FAST AND EASY FINANCING!! CALL OR EMAIL N ...

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

                          $17,900

                            New 2026 Keystone Cougar Half-Ton 26LBW available in Milford North, Delaware
                            20

                            New 2026 Keystone Cougar Half-Ton 26LBW

                            New Travel Trailer in Milford North, Delaware 19963

                            For Sale by Delmarva RV Center (Milford North)

                            2026 COUGAR HALF TON BY KEYSTONE 26LBW   POWER AWNING DRY WEIGHT 7180LBS ONE SLIDE DUCTED ROOF A/C SLEEPS 4 FRONT BEDROOM REAR BATHROOM DINETTE FLATSCREEN TV FIREPLACE PANTRY WASHER DRYER PREP DOUBLE DOOR REFRIGERATOR   WE WANT YOUR BUSINESS FOLK ...

                            • Sale
                            • In Stock
                            • New Arrival

                            $44,995

                              Used 2012 Keystone Outback 312BH available in Milford North, Delaware
                              20

                              Used 2012 Keystone Outback 312BH

                              Used Travel Trailer in Milford North, Delaware 19963

                              For Sale by Delmarva RV Center (Milford North)

                              2012 OUTBACK BY KEYSTONE 312BH   AWNING 2 SLIDES DRY WEIGHT 7,579LBS OUTSIDE KITCHEN DUCTED ROOF A/C SLEEPS 10 FRONT BEDROOM SIDE BATHROOM BUNK ROOM U SHAPED DINETTE FLATSCREEN TV  DOUBLE DOOR REFRIGERATOR   WE WANT YOUR BUSINESS FOLKS!! WE ...

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

                              $14,900

                                Used 2017 Keystone Raptor 425TS available in Milford North, Delaware
                                24

                                Used 2017 Keystone Raptor 425TS

                                Used Toy Hauler in Milford North, Delaware 19963

                                For Sale by Delmarva RV Center (Milford North)

                                2018 RAPTOR BY KEYSTONE 425TS   POWER AWNING 3 SLIDES DUCTED ROOF A/C SLEEPS 9 UPPER LOFT AREA POWER DROP DOWN BEDS FRONT BEDROOM BATH AND A HALF  FLATSCREEN TV  LARGE REFRIGERATOR WALKTHROUGH BATHROOM FIREPLACE WASHER/DRYER PREP    ...

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

                                $44,900

                                  New 2025 Keystone Cougar 290RLS available in Milford North, Delaware
                                  23

                                  New 2025 Keystone Cougar 290RLS

                                  New Fifth Wheel in Milford North, Delaware 19963

                                  For Sale by Delmarva RV Center (Milford North)

                                  2025 COUGAR BY KEYSTONE 290RLS   POWER AWNING 3 SLIDES CEILING FAN DUCTED ROOF A/C DRY WEIGHT 10660LBS SLEEPS 4 FRONT BEDROOM SIDE BATHROOM PANTRY FLATSCREEN TV  FIREPLACE CENTER ISLAND  LARGE SIDE BY SIDE REFRIGERATOR DINETTE WE WANT YOUR B ...

                                  • Sale
                                  • Blow Out Price
                                  • In Stock
                                  • New Arrival
                                  • Special
                                  • Reduced

                                  $64,900

                                    Used 2019 Keystone Cougar 369BHS available in Milford North, Delaware
                                    22

                                    Used 2019 Keystone Cougar 369BHS

                                    Used Fifth Wheel in Milford North, Delaware 19963

                                    For Sale by Delmarva RV Center (Milford North)

                                    2019 COUGAR BY KEYSTONE 369BHS   POWER AWNING 4 SLIDES OUTSIDE KITCHEN DRY WEIGHT 11,441LBS DUCTED ROOF A/C SLEEPS 9 FRONT BEDROOM SIDE BATHROOM BUNK ROOM DINETTE DOUBLE DOOR REFRIGERATOR FLATSCREEN TV  FIREPLACE   WE WANT YOUR BUSINESS FOLK ...

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

                                    $34,995

                                      Used 2021 Keystone Cougar Half-Ton 25DBSWE available in Milford, Delaware
                                      18

                                      Used 2021 Keystone Cougar Half-Ton 25DBSWE

                                      Used Travel Trailer in Milford, Delaware 19963

                                      For Sale by Delmarva RV Center

                                      2021 COUGAR HALF TON KEYSTONE  25DBSWE   DRY WEIGHT 6110LBS POWER AWNING OUTSIDE KITCHEN ONE SLIDE SLEEPS 8 FRONT BEDROOM CORNER BATHROOM BUNKS  U SHAPED DINETTE FLATSCREEN TV  DOUBLE DOOR REFRIGERATOR   WE WANT YOUR BUSINESS FOLKS ...

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

                                      $25,900

                                        New 2026 Keystone Cougar 360MBI available in Milford North, Delaware
                                        30

                                        New 2026 Keystone Cougar 360MBI

                                        New Fifth Wheel in Milford North, Delaware 19963

                                        For Sale by Delmarva RV Center (Milford North)

                                        2026 COUGAR BY KEYSTONE 360MBI HERO EDITION   POWER AWNING  GREEN LED ACCENT LIGHTING  FRAMELESS WINDOWS  BLACKOUT RIMS INDUSTRY EXCLUSIVE FULL BODY PAINT MATTE FINISH  4 SLIDES DRY WEIGHT 12580LBS DUCTED ROOF A/C SLEEPS 8 FRONT BE ...

                                        • Sale
                                        • Coming Soon
                                        • On Order

                                        $79,995

                                          New 2026 Keystone Cougar Half-Ton 23MLE available in Milford North, Delaware
                                          20

                                          New 2026 Keystone Cougar Half-Ton 23MLE

                                          New Fifth Wheel in Milford North, Delaware 19963

                                          For Sale by Delmarva RV Center (Milford North)

                                          2026 COUGAR BY KEYSTONE MODEL 23MLE   POWER AWNING DRY WEIGHT 7820LB 2 SLIDES OUTSIDE REFRIGERATOR SLEEPS 4 FRONT BEDROOM SIDE BATHROOM DINETTE DOUBLE DOOR REFRIGERATOR FLATSCREEN TV   WE WANT YOUR BUSINESS FOLKS!! WE TAKE ALL TYPES OF TRADES!! W ...

                                          • Sale
                                          • In Stock
                                          • New Arrival

                                          $49,995

                                            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 Bullet Classic 21RKC available in Clayton, Delaware
                                              28

                                              New 2026 Keystone Bullet Classic 21RKC

                                              New Travel Trailer in Clayton, Delaware 19938

                                              For Sale by Alexander RV & Trailer Center

                                              **COMPACT COUPLES TRAILER!** 1 SLIDE OUT REAR KITCHEN JACK-KNIFE SOFA BOOTH DINETTE PRIVATE FRONT BEDROOM HUGE BATHROOM 2 ENTRY DOORS **ALL THIS AND UNDER 26' TONGUE TO BUMPER**

                                              • Sale
                                              • Blow Out Price
                                              • In Stock
                                              • New Arrival
                                              • Special
                                              • Reduced

                                              $29,997

                                                Used 2022 Keystone Hideout East 28RKS available in Clayton, Delaware
                                                24

                                                Used 2022 Keystone Hideout East 28RKS

                                                Used Travel Trailer in Clayton, Delaware 19938

                                                For Sale by Alexander RV Center

                                                **LARGE LIVING SPACE** 1 SLIDE OUT POWER EVERYTHING OUTSIDE KITCHEN RECLINERS FREESTANDING TABLE & 4 CHAIRS PORCELAIN TOILET GLASS SHOWER DOOR SLEEPS 4 PEOPLE GREAT FOR TOWING OR PARKING SEASONALLY!!

                                                • Sale
                                                • Blow Out Price
                                                • In Stock
                                                • New Arrival
                                                • Special

                                                $24,997

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