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2027 East to West Blackthorn 3780FK vs Keystone Sprinter 3980FBS

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2027 Grand Design Reflection 317RSTS floorplanGrand Design Reflection 317RSTSTravel trailer, 35′ 5″2027 Keystone Montana High Country 290RL floorplanKeystone Montana High Country 290RLFifth wheel, 33′ 11″2027 Grand Design Momentum 344M floorplanGrand Design Momentum 344MFifth-wheel toy hauler, 39′ 11″

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Key differences

Both are 2027 Fifth wheel models. Here's how they differ, from manufacturer specifications.

  • The Keystone Sprinter 3980FBS is 6″ longer: 43′ 1″ vs 42′ 7″.
  • The East to West Blackthorn 3780FK is 21 lb lighter unloaded: 12,769 vs 12,790 lb.
  • The Keystone Sprinter 3980FBS lists 1,049 lb more cargo capacity: 3,780 vs 2,731 lb.
  • The East to West Blackthorn 3780FK has a 195 lb lighter hitch weight: 2,375 vs 2,570 lb.
  • The Keystone Sprinter 3980FBS holds 13 gal more fresh water: 77 vs 64 gal.
YOUR SHORTLIST
East to West Blackthorn

3780FK

2027 · Fifth wheel

Specs & prices
Keystone Sprinter

3980FBS

2027 · Fifth wheel

Specs & prices
Floorplan
PRICING
Manufacturer price (USD)
Not verified
Not verified
Lowest tracked dealer price (USD)
No recently verified dealer price
$72,683Campers Inn RV ↗ · Conway, SCAdvertised total including dealer-listed feesChecked Lowest among tracked new units; equipment varies. Not an out-the-door quote. Financing, rebates and fees may apply.
Price conditionsAdvertised price, not an out-the-door quote. Taxes, registration, delivery and other fees may apply. Financing, trade-in and rebate eligibility have not been independently verified; confirm all conditions with the dealer. Equipment varies by unit.
All tracked prices & history
Est. monthly payment (USD)
No verified price to estimate from
$663/mo15 years at 8.99% APR with 10% down, based on the lowest dealer price. Before tax and fees.Customize this payment
DIMENSIONS & WEIGHTS
Exterior length
42′ 7″
43′ 1″
Exterior width
8′ 0″
—
Exterior height
13′ 5″
13′ 4″
Shipping / unloaded weight
12,769 lb
12,790 lb
GVWR
15,500 lb
—
Listed cargo capacity
2,731 lb
3,780 lb
Listed hitch weight
2,375 lb
2,570 lb
LIVING & SLEEPING
Sleeping capacity
—
8
Slide-outs
4
—
Main bed
Not verified
70" x 80" king bed w/ gas strut storage
Bunk beds
Not verified
✓ Yes
Dinette
Not verified
Not verified
Bathroom
Not verified
Not verified
Refrigerator
Not verified
16 Cu. Ft. 12V refrigerator
TANKS & EVERYDAY FEATURES
Fresh water
64 gal
77 gal
Gray water
132 gal
90 gal
Black water
88 gal
90 gal
Awning length
20′ 0″
—
Shore power / electrical service
50 amp listed; standard/optional configuration not verified
Not verified
Solar equipment
Not verified
SolarFlex™ Ready
Outdoor kitchen
Not verified
No
Washer/dryer prep
Not verified
✓ Yes
Microwave
Not verified
✓ Yes
Cooktop
Not verified
Free Standing Residential Gas Range / Oven
Air conditioning
Not verified
(2) Air conditioning units; 3rd. A/C
Electric fireplace
Not verified
✓ Yes
Backup camera
Not verified
Not verified
Propane tanks
—
2
Tire size
Not verified
ST235/80R16G
SOURCES & VERIFICATION
Weight basis
Manufacturer unloaded vehicle weight
Manufacturer shipping weight
Source checked
2026-10-22 Manufacturer ↗
2026-10-22 Manufacturer ↗

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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