Newmar Kountry Star 4037

Name: Newmar Kountry Star 4037
Brand: Newmar

Class Abuilt 2020–24Better build tierPatient search on the used market

WHAT ONE COSTS

$275,700est. used (2024, 2 yr old)

Sticker was $403,947 in 2023. Out of production since 2024, so the used market is the only way to buy one. Estimate assumes a 2024 unit.

THE SPECS

Length40.8 ft

Height (incl. A/C)12.8 ft

Width8.5 ft

Interior height6.9 ft

GVWR38,200 lb

Dry weight30,000 lb

Sleeps6

Fresh water105 gal

Grey water65 gal

Black water45 gal

Air conditioning30,000 BTU

Fuel100 gal

Engine / chassisCummins B 6.7L 360 hp diesel pusher · Freightliner XCR

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× 87 in. jack-knife sofa(Convertible)—
1× 74 in. jack-knife sofa(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	37,500 lb	30,900 lb	$403,947
2021–22	38,000 lb	29,600 lb	$403,947
2023–24	38,200 lb	30,000 lb	$403,947

2020Introduced
2021GVWR 37,500 → 38,000 lb
2023GVWR 38,000 → 38,200 lb

FINDING ONE

Patient search: weeks of watching, and probably some travel. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Bath-and-a-half 40-footer, the longest-running plan in the modern line.

OTHER KOUNTRY STAR FLOORPLANS

3354 · 28,000 lb · sleeps 4 3355 · 29,500 lb · sleeps 6 3412 · 33,400 lb · sleeps 6 3418 · 33,400 lb · sleeps 6 3426 · 33,400 lb · sleeps 4 3509 · 32,000 lb · sleeps 4 3510 · 32,000 lb · sleeps 6 3623 · 32,000 lb · sleeps 4 3624 · 32,000 lb · sleeps 6 3709 · 37,500 lb · sleeps 6 3717 · 37,500 lb · sleeps 6 3720 · 29,500 lb · sleeps 4 3721 · 29,500 lb · sleeps 6 3907 · 32,000 lb · sleeps 4 the whole line →

Find one for sale

Live listings for the 4037 on the big marketplaces. Each search opens pre-filled with this exact floorplan:

RV Trader ↗Camping World ↗FB Marketplace ↗Google ↗

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

Is the 4037 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 dealer and aggregator listings, retrieved 2026-07.