# 2026 Forest River Sandpiper 3990FL

New 2026 Forest River Sandpiper 3990FL for sale at Fife RV Center in Fife, WA.

## Summary

- Condition: New
- Status: In stock
- Year: 2026
- Make: Forest River
- Model: Sandpiper
- Floorplan: 3990FL
- Type: Fifth Wheel
- VIN: 4X4FSAS21TJ049192
- Stock number: SP111

## Price

- Price: $81,997
- MSRP: $124,106

Taxes, title, registration and any dealer fees are not itemized here; confirm the final price with the dealership.

## Specifications

- Length: 43' 6"
- Width: 8'
- Exterior height: 13' 4"
- Sleeps: 8
- Slide-outs: 5
- Dry weight: 12,439 lbs
- GVWR: 15,375 lbs
- Cargo capacity: 2,936 lbs
- Hitch weight: 2,825 lbs
- Fresh water: 50 gal
- Gray water: 80 gal
- Black water: 50 gal
- Refrigerator: 16

## Highlights

- Spacious living area with 5 slides for extra room
- Tankless water heater for continuous hot water
- Solar ready for off-grid adventures
- Kitchen island for convenient meal preparation
- Bunkhouse layout sleeps 8 comfortably

## Description

The 2026 Forest River Sandpiper 3990FL is designed for families looking for spacious comfort on the road. With a length of 44 ft and the ability to sleep up to 8 people, this new fifth wheel is perfect for family gatherings or adventurous trips. Enjoy the convenience of a kitchen island and a well-appointed living area located at the front, ensuring everyone can relax together. This model features 5 slides for expanded living space and is equipped with a tankless water heater to ensure hot water on demand. Solar-ready and washer dryer prep make it ideal for extended travels. Schedule your tour today at our Fife, WA location and explore this exceptional fifth wheel!

## Questions

### How much is this 2026 Forest River Sandpiper 3990FL?
Fife RV Center lists it at $81,997, down from an MSRP of $124,106. Taxes, title, registration and any dealer fees are not itemized here. Confirm the final price with the dealership.

### Is it new or used?
New.

### Where is it?
At Fife RV Center - Fife, 3410 Pacific Hwy E, Fife, WA, 98424.

### How many people does it sleep?
Up to 8.

### How long is it?
43' 6" overall.

### What do I need to tow it?
This fifth wheel has a dry weight 12,439 lbs, GVWR 15,375 lbs, hitch weight 2,825 lbs. Choose a tow vehicle rated above the GVWR, and check its hitch and payload ratings too. Fife RV Center can confirm a match for your vehicle.

### What are the tank sizes?
50 gal fresh, 80 gal gray, 50 gal black.

### Can I finance it or trade in my current unit?
Yes. Fife RV Center offers financing and takes trade-ins. Apply or get a trade value on the website, or call (253) 470-2791.

### How do I check it is still available?
Inventory changes daily. Use the contact form on the listing page or call (253) 470-2791 to confirm before visiting.

## Dealer

- Fife RV Center - Fife
- Address: 3410 Pacific Hwy E, Fife, WA, 98424
- Phone: (253) 470-2791

## Photos

- ![2026 Forest River Sandpiper 3990FL photo 1](https://images.scout-rv.com/inventory/bb7b4423-4803-4c27-86c4-dd150841577b/SP111/image-001-1788692094924.jpg)
- ![2026 Forest River Sandpiper 3990FL photo 2](https://images.scout-rv.com/inventory/bb7b4423-4803-4c27-86c4-dd150841577b/SP111/image-002-1788692095448.jpg)
- ![2026 Forest River Sandpiper 3990FL photo 3](https://images.scout-rv.com/inventory/bb7b4423-4803-4c27-86c4-dd150841577b/SP111/image-003-1788692095998.jpg)
- ![2026 Forest River Sandpiper 3990FL photo 4](https://images.scout-rv.com/inventory/bb7b4423-4803-4c27-86c4-dd150841577b/SP111/image-004-1788692096559.jpg)
- ![2026 Forest River Sandpiper 3990FL photo 5](https://images.scout-rv.com/inventory/bb7b4423-4803-4c27-86c4-dd150841577b/SP111/image-005-1788692096992.jpg)
- ![2026 Forest River Sandpiper 3990FL photo 6](https://images.scout-rv.com/inventory/bb7b4423-4803-4c27-86c4-dd150841577b/SP111/image-006-1788692097571.jpg)
- ![2026 Forest River Sandpiper 3990FL photo 7](https://images.scout-rv.com/inventory/bb7b4423-4803-4c27-86c4-dd150841577b/SP111/image-007-1788692098150.jpg)
- ![2026 Forest River Sandpiper 3990FL photo 8](https://images.scout-rv.com/inventory/bb7b4423-4803-4c27-86c4-dd150841577b/SP111/image-008-1788692098622.jpg)

## Links

- Listing page (canonical): https://www.fifervcenter.com/inventory/new/fifth-wheel-2026-forest-river-rv-sandpiper-sp111
- Ask about this unit: use the contact form on the listing page, or call (253) 470-2791
- Financing: https://www.fifervcenter.com/financing
- Trade-in value: https://www.fifervcenter.com/trade-in
- All inventory: https://www.fifervcenter.com/inventory.md

Last updated: 2026-11-14