Fleetwood Frontier 37S vs Newmar Northern Star 3709
2026 Class A comparison · side-by-side specs, verdict, and who each is best for.
Quick verdict
Both 2026 Class A diesels share the Cummins B6.7 at 360 HP and a 38 ft footprint, but the resemblance stops there. The Fleetwood Frontier 37S is 38.33 ft on the Freightliner XCR Freedom Sport Bridge with 33,600 lb GVWR, 3 slides, 96 gal fresh, 65 gal grey, 45 gal black, 8 kW generator, 2,000 W inverter, 100 W solar, and sleeps 4 around a king. The Newmar Northern Star 3709 is 37.83 ft on Freightliner with 38,000 lb GVWR, documented 7,800 lb cargo, 3 slides, 105/65/45 gal tanks, 32 gal LP, 400 Ah battery, bath-and-a-half, and sleeps 6 around a king.
The Newmar Northern Star 3709 wins on GVWR (+4,400 lb), documented cargo (7,800 lb), tank capacity (105 gal fresh, 32 gal LP), bath-and-a-half, four-season, and sleep count (6 vs 4). The Fleetwood Frontier 37S answers with 2,000 W of inverter and 100 W solar. MSRP is $414,458 vs $412,510, only $1,948 apart.
Directional verdict: the Northern Star 3709 is the better-equipped pick; the Frontier 37S wins on the inverter and solar baseline.
Side-by-side specs
| Fleetwood Frontier 37S | Newmar Northern Star 3709 | |
|---|---|---|
| MSRP | $414,458 | $412,510 |
| Length | 38'4" | 37'10" |
| Dry weight | — | 30,200 lbs |
| GVWR | 33,600 lbs | 38,000 lbs |
| Sleeps | 4 | 6 |
| Slides | 3 | 3 |
| Fresh tank | 96 gal | 105 gal |
| Grey tank | 65 gal | 65 gal |
| Black tank | 45 gal | 45 gal |
| LP | — | 32 gal |
| Solar | 100W | — |
| Inverter | 2000W | — |
| Generator | 8000W | 8000W |
| Bath | — | one_and_half |
| Bed | king | king |
| 4-season | No | Yes |
| Off-road | No | No |
| Outdoor kitchen | No | No |
| Washer/dryer | yes | included |
| Residential fridge | Yes | Yes |
Where Fleetwood Frontier 37S wins
- 2,000 W inverter standard
- 100 W roof solar included
- Freightliner XCR Freedom Sport Bridge chassis
- 8 kW Aqua-Hot generator with prep
Where Newmar Northern Star 3709 wins
- 38,000 lb GVWR vs 33,600 lb (4,400 lb more)
- Documented 7,800 lb cargo capacity
- 105 gal fresh tank vs 96 gal
- 32 gal LP capacity for cold-weather furnace runtime
- Bath-and-a-half, four-season, sleeps 6
Pick the Fleetwood Frontier 37S if…
Pick the Fleetwood Frontier 37S if you want a value-oriented Class A diesel with the documented 2,000 W inverter and 100 W solar baseline that the Northern Star doesn't publish. The 96 gal fresh tank, Aqua-Hot heating, and 50-amp service deliver a comfortable couples coach inside the 33,600 lb GVWR. At $414,458 MSRP, it's for buyers who travel with 2-4 people and prioritize the diesel pusher experience plus a working off-grid electrical baseline.
Pick the Newmar Northern Star 3709 if…
Pick the Newmar Northern Star 3709 if you carry 6 people, plan four-season trips, and want the bath-and-a-half plumbing for guest stays. The 38,000 lb GVWR with documented 7,800 lb cargo, 105 gal fresh tank, 32 gal LP, and 400 Ah battery bank are working full-timer numbers. The $412,510 MSRP is $1,948 cheaper than the Frontier and brings the half bath, second toilet, and tank capacity that matter on extended trips.
Frequently asked
Which has more cargo capacity?
The Newmar Northern Star 3709 documents 7,800 lbs of cargo. The Fleetwood Frontier 37S does not list cargo capacity but its 33,600 lb GVWR is 4,400 lb less than the Northern Star's 38,000 lb.
Is either bath-and-a-half?
Only the Northern Star 3709 lists a bath-and-a-half layout. The Frontier 37S spec sheet does not specify bath layout.
How do the freshwater tanks compare?
The Northern Star 3709 has a 105 gal fresh tank vs 96 gal on the Frontier 37S, a 9 gal advantage.