2027 Forest River Nightfall 397NHD vs Keystone Carbon 420
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Key differences
Both are 2027 Fifth-wheel toy hauler models. Here's how they differ, from manufacturer specifications.
- The Forest River Nightfall 397NHD is 1″ longer: 45′ vs 44′ 11″.
- The Keystone Carbon 420 is 304 lb lighter unloaded: 15,370 vs 15,674 lb.
- The Forest River Nightfall 397NHD lists 696 lb more cargo capacity: 5,326 vs 4,630 lb.
- The Keystone Carbon 420 has a 420 lb lighter hitch weight: 3,345 vs 3,765 lb.
- The Forest River Nightfall 397NHD holds 56 gal more fresh water: 150 vs 94 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
45′ 0″
44′ 11″
Garage length
—
14′ 6″
Exterior width
8′ 6″
—
Exterior height
13′ 6″
13′ 3″
Shipping / unloaded weight
15,674 lb
15,370 lb
GVWR
21,000 lb
—
Listed cargo capacity
5,326 lb
4,630 lb
Listed hitch weight
3,765 lb
3,345 lb
LIVING & SLEEPING
Sleeping capacity
—
7
Slide-outs
3
—
Main bed
Not verified
Queen (size not published)
Bunk beds
Not verified
✓ Yes
Dinette
Not verified
Not verified
Bathroom
Not verified
Not verified
Refrigerator
Not verified
16.5 Cu. Ft. 12V refrigerator
TANKS & EVERYDAY FEATURES
Fresh water
150 gal
94 gal
Gray water
120 gal
88 gal
Black water
80 gal
88 gal
Awning length
10′ 10″ & 8′ 0″ & 10′ 10″
—
Shore power / electrical service
Not verified
50 amp standard
Solar equipment
Not verified
SolarFlex™ Protect 220
Outdoor kitchen
Not verified
No
Washer/dryer prep
Not verified
✓ Yes
Microwave
Not verified
✓ Yes
Cooktop
Not verified
3-burner range and 17" black oven
Air conditioning
Not verified
Three Chill Cube A/C's; Triple A/C Package; Ducted A/C and heat into garage
Electric fireplace
Not verified
✓ Yes
Backup camera
Not verified
wireless backup camera prep
Propane tanks
—
2
Tire size
Not verified
ST235/80R16G
SOURCES & VERIFICATION
Weight basis
Manufacturer unloaded vehicle weight
Manufacturer shipping weight
Source checked
2026-10-23 Manufacturer ↗
2026-10-23 Manufacturer ↗
Which RVs are on your shortlist?
Choose from 2,320 RVs by Forest River, Keystone, Coachmen, Jayco and 21 other manufacturers. Add up to six to see their floorplans and specifications together.
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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