2026 Forest River Riverstone 42FSKG vs KZ Sportster X 3914X
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Key differences
Both are 2026 Fifth-wheel toy hauler models. Here's how they differ, from manufacturer specifications.
- The Forest River Riverstone 42FSKG is 2″ longer: 44′ 7″ vs 44′ 5″.
- The KZ Sportster X 3914X is 3,106 lb lighter unloaded: 14,620 vs 17,726 lb.
- The Forest River Riverstone 42FSKG has a 4,000 lb higher GVWR: 24,000 vs 20,000 lb.
- The Forest River Riverstone 42FSKG lists 894 lb more cargo capacity: 6,274 vs 5,380 lb.
- The KZ Sportster X 3914X has a 910 lb lighter hitch weight: 3,040 vs 3,950 lb.
- The KZ Sportster X 3914X holds 5 gal more fresh water: 100 vs 95 gal.
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YOUR SHORTLIST
Floorplan
PRICING
Manufacturer price (USD)
Not verified
Not verified
Lowest tracked dealer price (USD)
No recently verified dealer price
No recently verified dealer price
Est. monthly payment (USD)
No verified price to estimate from
No verified price to estimate from
DIMENSIONS & WEIGHTS
Exterior length
44′ 7″
44′ 5″
Garage length
—
—
Exterior width
8′ 6″
8′ 4″
Exterior height
13′ 4″
13′ 5″
Shipping / unloaded weight
17,726 lb
14,620 lb
GVWR
24,000 lb
20,000 lb
Listed cargo capacity
6,274 lb
5,380 lb
Listed hitch weight
3,950 lb
3,040 lb
LIVING & SLEEPING
Sleeping capacity
—
—
Slide-outs
5
—
Main bed
Not verified
Not verified
Bunk beds
Not verified
Not verified
Dinette
Not verified
Not verified
Bathroom
Not verified
Not verified
Refrigerator
Not verified
16 cu ft
TANKS & EVERYDAY FEATURES
Fresh water
95 gal
100 gal
Gray water
82 gal
50 gal
Black water
41 gal
90 gal
Awning length
18′ 0″ & 11′ 6″
—
Shore power / electrical service
Not verified
Not verified
Solar equipment
Not verified
Not verified
Outdoor kitchen
Not verified
Not verified
Washer/dryer prep
Not verified
Not verified
Microwave
Not verified
Not verified
Cooktop
Not verified
Not verified
Air conditioning
Not verified
Not verified
Electric fireplace
Not verified
Not verified
Backup camera
Not verified
Not verified
Propane tanks
—
—
Tire size
Not verified
Not verified
SOURCES & VERIFICATION
Weight basis
Manufacturer unloaded vehicle weight
Manufacturer unloaded vehicle weight
Source checked
2026-10-28 Manufacturer ↗
2026-10-28 Manufacturer ↗
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Manufacturer floorplan images © their respective manufacturers. Specs checked October 19, 2026; exact-unit labels and production options may differ. “Not verified” or a dash means we have no confirmed value. “Not listed” means the applicable manufacturer equipment was checked but does not mention the feature; it does not mean “No.” “Conflicting data” means manufacturer entries disagree. “Optional” equipment is available but is not confirmed as standard. Camera prep does not confirm an installed camera. Weights are kept separate: unloaded weight, GVWR, cargo capacity, and hitch weight. Confirm every specification for the exact model year and configuration with the manufacturer. This tool does not establish towing compatibility.
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