Entegra Coach Cornerstone 45B

Name: Entegra Coach Cornerstone 45B
Brand: Entegra Coach

Class Abuilt 2015–26Better build tierPatient search on the used market

WHAT ONE COSTS

$709,900est. used (2026, 1 yr old)

Sticker was $985,980 in 2026. Out of production since 2026, so the used market is the only way to buy one. Estimate assumes a 2026 unit.

THE SPECS

Length44.9 ft

Height (incl. A/C)12.9 ft

Width8.4 ft

Interior height7.0 ft

GVWR54,000 lb

Dry weightnot published

Sleeps4

Slide-outs4

Fresh water100 gal

Grey water62 gal

Black water41 gal

Air conditioning45,000 BTU

Solar (standard)400 W

Fuel175 gal

Engine / chassisCummins X15 605 HP diesel pusher / Allison 4000 MH / Spartan K3

GeneratorOnan 12,500W diesel with auto-start

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

WHERE PEOPLE SLEEP

1× Walk-around king in rear bedroom(Permanent)72×80
1× 100 in. power reclining sofa (hide-a-bed optional)(Convertible)—

HOW IT'S BUILT: 4/5

WallsLaminated fiberglass

FrameAluminum

RoofWalk-on

UnderbellyEnclosed

Entegra Coach (Better tier): Thor Industries (Jayco / Entegra Coach, Middlebury IN)

YEAR BY YEAR: WHAT CHANGED

YEARS	GVWR	DRY	MSRP
2015	54,000 lb	—	$609,281
2016–26	54,000 lb	—	$985,980

2015Introduced
2016Tanks revised from 95/49/49 to 100/62/41 gal
2022Front cap restyle; catalog length briefly listed 45'5"
2025Fuel tank 150 -> 175 gal
2026Final Entegra-built model year; name moves to Tiffin for MY2027

FINDING ONE

Patient search: weeks of watching, and probably some travel. Why: 12-year production run; priced at the top of its maker’s range. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

The longest-running Cornerstone plan - couples bath-and-a-half with outdoor entertainment centre.

OTHER CORNERSTONE FLOORPLANS

45A · 54,000 lb · sleeps 6 45D · 54,000 lb · sleeps 4 45F · 54,000 lb · sleeps 6 45J · 54,000 lb · sleeps 6 45K · 54,000 lb · sleeps 6 45R · 54,000 lb · sleeps 7 45V · 54,000 lb · sleeps 4 45W · 54,000 lb · sleeps 4 45X · 54,000 lb · sleeps 7 45Y · 54,000 lb · sleeps 4 45Z · 54,000 lb · sleeps 4 the whole line →

Find one for sale

Live listings for the 45B 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 Cornerstone line ↗

Is the 45B 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.