Newmar Super Star 4058
Class Cbuilt 2020–21Better build tierPatient search on the used market
WHAT ONE COSTS
—price not published
The maker never published an MSRP for this floorplan. Unknown is not cheap — treat any asking price against comparable models, not against zero.
THE SPECS
Length40.9 ft
Height (incl. A/C)13.0 ft
Width8.5 ft
Interior height6.9 ft
GVWR40,000 lb
Dry weight33,300 lb
Cargo capacity6,700 lb
Sleeps5
Slide-outs2
Fresh water150 gal
Grey water60 gal
Black water40 gal
Air conditioning30,000 BTU
Fuel100 gal
Engine / chassisCummins L9 350 hp · Freightliner M2-112
GeneratorCummins Onan 8.0 kW diesel
A missing row means the maker never published that figure — unknown, not zero.
WHERE PEOPLE SLEEP
- 1× Rear king bed(Permanent)72×80
- 1× Hide-a-bed sofa(Convertible)—
- 1× Dinette(Convertible)—
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyEnclosed
Newmar (Better tier): Newmar
YEAR BY YEAR — WHAT CHANGED
| YEARS | GVWR | DRY | MSRP |
|---|---|---|---|
| 2020 | 40,000 lb | 33,000 lb | — |
| 2021 | 40,000 lb | 33,300 lb | — |
- 2020Introduced
- 2022Discontinued
FINDING ONE
Patient search — weeks of watching, and probably some travel. Why: only 2 model years. Estimated from build volume and production span — not a count of live listings.
THE READ
Two-year launch-era 40 ft plan.
OTHER SUPER STAR FLOORPLANS
3727 · 40,000 lb · sleeps 53729 · 40,000 lb · sleeps 63731 · 40,000 lb · sleeps 53746 · 38,000 lb · sleeps 54040 · 41,200 lb · sleeps 64051 · 40,000 lb · sleeps 54059 · 41,200 lb · sleeps 54061 · 41,200 lb · sleeps 54065 · 41,200 lb · sleeps 64140 · 41,200 lb · sleeps 64159 · 41,200 lb · sleeps 54161 · 41,200 lb · sleeps 5the whole line →
Is the 4058 your #1 — or just a spec sheet?
These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about — set your priorities as sliders and watch the whole market re-rank around them. Nothing gets hidden, everything gets explained.
Rank it against your setup →Data compiled from manufacturer spec sheets, retrieved 2026-07.