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Newmar Dutch Star 4345

Class Abuilt 2027– (in production)Better build tierScarce on the used market
WHAT ONE COSTS
$737,300MSRP today

Still in production. A used 2023 would run roughly $435,000.

THE SPECS
Length43.8 ft
Height (incl. A/C)13.1 ft
Width8.5 ft
Interior height6.9 ft
GVWR51,000 lb
Dry weight40,000 lb
Sleeps6
Slide-outs4
Fresh water105 gal
Grey water75 gal
Black water55 gal
Air conditioning15,000 BTU
Fuel150 gal
Engine / chassisCummins 8.9L L9 450 hp diesel on Freightliner
GeneratorCummins Onan 10.0 kW diesel

A missing row means the maker never published that figure: unknown, not zero.

WHERE PEOPLE SLEEP
  • Rear king bed(Permanent)72×80
  • Hide-a-bed sofa(Convertible)
  • Dinette sleeper(Convertible)
  • Optional bunk(Stow-away)
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyEnclosed

Newmar (Better tier): Dutch Star is Newmar's volume luxury diesel and carries the full construction spec - 16-in on-center framing, one-piece fiberglass roof with gutter rail, full-body Masterpiece paint - with resale to match.

YEAR BY YEAR: WHAT CHANGED
  • 2027Introduced - four slides, bath and a half
FINDING ONE

Scarce: months of watching; be ready to fly and drive it home. Why: only one model year; still in production; priced at the top of its maker’s range. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Newest and priciest Dutch Star plan; four slides and the most floor space.

OTHER DUTCH STAR FLOORPLANS
Find one for sale

Live listings for the 4345 on the big marketplaces. Each search opens pre-filled with this exact floorplan:

Inventory varies by site and day. Slim pickings? search the whole Dutch Star line ↗

Is the 4345 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, switch on your hard limits, and watch the whole market re-rank around them. Every exclusion explained, every margin shown.

See where it ranks for you →

Data compiled from manufacturer spec sheets, retrieved 2026-07.