Monaco Diplomat 43DF

Name: Monaco Diplomat 43DF
Brand: Monaco

Class Abuilt 2016–16Mixed build tierScarce on the used market

WHAT ONE COSTS

$189,200est. used (2016, 10 yr old)

Sticker was $355,577 in 2016. Out of production since 2016, so the used market is the only way to buy one. Estimate assumes a 2016 unit.

THE SPECS

Length43.8 ft

Height (incl. A/C)12.9 ft

Width8.5 ft

Interior height7.0 ft

GVWR44,600 lb

Dry weightnot published

Sleeps8

Slide-outs3

Fresh water100 gal

Grey water60 gal

Black water40 gal

Fuel150 gal

Engine / chassisCummins ISL 450 hp / Roadmaster tag-axle chassis, Allison 6-speed

GeneratorOnan 8.0 kW Quiet Diesel

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

WHERE PEOPLE SLEEP

1× Master queen bed(Permanent)—
2× Convertible sofa beds(Convertible)—

HOW IT'S BUILT: 4/5

WallsLaminated fiberglass

FrameAluminum

RoofWalk-on

UnderbellyEnclosed

Monaco (Mixed tier): Monaco Coach Corp (2005-2009), Navistar RV (2010-2013), REV Recreation Group (2014-2017)

YEAR BY YEAR: WHAT CHANGED

2016Introduced under REV Recreation Group ownership
2016Last model year

FINDING ONE

Scarce: months of watching; be ready to fly and drive it home. Why: only one model year; 10 years out of production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

REV-era Diplomat — every 2016-2017 plan is a 43-footer on a 44,600 lb tag-axle chassis with a 150 gal fuel tank.

OTHER DIPLOMAT FLOORPLANS

36SKT · 33,000 lb · sleeps 4 38PDD · 33,000 lb · sleeps 4 38PDQ · 33,000 lb · sleeps 6 40DST · 33,000 lb · sleeps 4 40PAQ · 33,000 lb · sleeps 4 40PDQ · 36,000 lb · sleeps 8 40PRQ · 33,000 lb · sleeps 6 41PDQ · 36,000 lb · sleeps 8 41SKQ · 36,000 lb · sleeps 8 43D · 44,600 lb · sleeps 6 43DFT · 43,000 lb · sleeps 8 43G · 44,600 lb · sleeps 6 43P · 44,600 lb · sleeps 6 43PDQ · 43,000 lb · sleeps 8 the whole line →

Find one for sale

Live listings for the 43DF 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 Diplomat line ↗

Is the 43DF 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.