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Stock Number: 505190K
Exterior Length: 39 ft 3 in
Sleeps: 4
Number of Slide Outs: 3
Condition: New
Exterior Color: White
Description: New 2025 Keystone RV Cougar 355FBS
Details: NO HIDDEN FEES!!! WE DO NOT CHARGE PDI OR FREIGHT FEES!!! LET US HELP SAVE YOU MONEY!!! Keystone Co...
Updated: Monday, September 21, 2026 11:57 AM
Seller: T&S RV & Sport - Livingston
Stock Number: 19330
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Exterior Color: WHITE
Description: New 2027 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Tuesday, September 22, 2026 10:03 AM
Seller: RV Station-Colbert
Stock Number: 501190V
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Exterior Color: WHITE (WHITE FOG)
Description: New 2027 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Tuesday, September 22, 2026 07:10 AM
Seller: Toliver RV - Victoria
Stock Number: B929
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Thursday, September 24, 2026 04:50 AM
Seller: Bob Hurley RV - OKC
Stock Number: B836
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Description: New 2026 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Thursday, September 24, 2026 04:50 AM
Seller: Bob Hurley RV - OKC
Stock Number: 506170
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Exterior Color: GREY (PHANTOM GREY)
Description: New 2026 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS MIDNIGHT EDITION highlights: Full and Half Bath Master Suite Kitch...
Updated: Wednesday, September 09, 2026 08:42 AM
Seller: Toliver RV - Stanton
Stock Number: KE18950
Exterior Length: 35 ft
Sleeps: 4
Number of Slide Outs: 3
Condition: New
Exterior Color: WHITE
Description: ****STK#: KE18950.****
~~~ ON SPECIAL NOW! ~~~
Keystone C...
Updated: Tuesday, September 08, 2026 03:00 PM
Seller: RV World Yuma
Stock Number: 220405
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Exterior Color: WHITE
Description: New 2026 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Wednesday, September 23, 2026 09:25 AM
Seller: Fun Town RV - Amarillo
Stock Number: 220409
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Exterior Color: WHITE
Description: New 2026 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Wednesday, September 23, 2026 09:25 AM
Seller: Fun Town RV - Orange
Stock Number: 220408
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Exterior Color: WHITE
Description: New 2026 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Wednesday, September 23, 2026 09:25 AM
Seller: Fun Town RV - Fairfield
Stock Number: 220410
Exterior Length: 39 ft 3 in
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Exterior Color: WHITE
Description: New 2026 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Wednesday, September 23, 2026 09:25 AM
Seller: Fun Town RV-Cleburne
Stock Number: 339674
Exterior Length: 3 ft 3 in
Sleeps: 6
Number of Slide Outs: 3
Condition: New
VIN: 4YDFCGT20T2501919
Description: NEW 2026 KEYSTONE RV COUGAR 355FBS – 339674
The 2026 Keystone Cougar 355FBS is designed for those who crave both luxury and functionalit...
Updated: Monday, August 17, 2026 10:16 AM
Seller: General RV Center
Stock Number: UT2597
Exterior Length: 39 ft 4 in
Sleeps: 5
Number of Slide Outs: 3
Condition: Used
Exterior Color: Black Onyx Midnight
Description: Experience the great outdoors with the 2023 Keystone Cougar 355FBS, a spacious fifth wheel designed to accommodate up to 5 people comfortably. With...
Updated: Thursday, September 03, 2026 06:09 AM
Seller: A & L RV Sales - Lake Park
Stock Number: GN33938
Sleeps: 5
Number of Slide Outs: 3
Condition: New
Number of Axles: Tandem
Exterior Height: 13 ft 4 in
Description: New 2026 Keystone RV Cougar 355FBS
Details: Keystone Cougar fifth wheel 355FBS highlights: Full and Half Bath Master Suite Kitchen Island Firepla...
Updated: Tuesday, September 22, 2026 06:10 AM
Seller: LDG - RV Canada 1000 Islands
