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Condition: New
Exterior Length: 43 ft 6 in
Sleeps: 8
Number of Slide Outs: 5
Gross Vehicle Weight: 15,375 lb
Number of Axles: Tandem
Description: New 2026 Forest River RV Sandpiper 3990FL
Details: Forest River Sandpiper fifth wheel 3990FL highlights: Outside Storage Theater Seating Kitchen ...
Updated: Sunday, October 11, 2026 08:01 AM
Seller: Young's RV Center
Condition: New
Exterior Length: 43 ft 6 in
Sleeps: 8
Number of Slide Outs: 5
Gross Vehicle Weight: 15,375 lb
Number of Axles: Tandem
Description: New 2026 Forest River RV Sandpiper 3990FL
Details: Forest River Sandpiper fifth wheel 3990FL highlights: Outside Storage Theater Seating Kitchen ...
Updated: Thursday, August 27, 2026 01:40 PM
Seller: Young's RV Center
Condition: Used
Exterior Length: 43 ft 6 in
Sleeps: 9
Number of Slide Outs: 5
Gross Vehicle Weight: 15,375 lb
Number of Axles: Tandem
Description: Used 2023 Forest River RV Sandpiper 3990FL
Details: Forest River Sandpiper fifth wheel 3990FL highlights: Walk-In Shower Outside Storage Theater...
Updated: Friday, October 16, 2026 05:05 PM
Seller: RV Station- Cleveland TX
