Standard Features
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A leader by design, the 2017 Monaco Diplomat motorhome is a power broker among luxury motor coaches. Thanks to impeccable forethought, the Diplomat anticipates your every need, while a custom-tuned Roadmaster Chassis delivers unbridled power for those who yearn to command the road. There’s a reason we call it the Diplomat…some leaders simply have more influence on life.


Model Year
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Gross Combined Wt Rating (GCWR)
59,600 lbs.
Gross Vehicle Wt Rating (GVWR)
44,600 lbs.
Gross Axle Wt Rating (GAWF) Front
14,600 lbs.
Gross Axle Wt Rating (GAWR) Rear
20,000 lbs.
10,000 lbs. tag axle
Towing Capacity
15,000 lbs.
Hitch Weight
1,500 lbs.


Length Feet
Overall Length
43 ft. 5 in.
302 in.
Exterior Height
12 ft. 11 in. with A/C
Exterior Width
102 in.
Interior Height
84 in.
Interior Width
96 in.

Engine & Drivetrain

Engine Make
Engine Model
ISL9 with 2-stage engine brake
450 hp
1,250 ft. lbs. @ 1,400 rpm
Fuel Type
Fuel Tank Capacity
150 gal.
Allison® 3000 MH 6-speed with electronic shift


Chassis Model
Roadmaster™ B450
Exterior Colors
Vapor Mist, Manhattan Bronze II, Desert Mirage
Interior Colors
Manhattan Bronze III, Vapor Mist II
No. of Slide-Outs
Exterior Storage


Fresh Water Capacity
100 gal.
Gray Water Capacity
60 gal.
Black Water Capacity
40 gal.
No. of Air Conditioners
Furnace BTU Rating
50,000 lbs.
Front & Rear: 295/80R 22.5 in. Michelin® radial

Standard Features

Interior General Amenities
 12V LED ceiling and task lighting  
 84 in. interior ceiling height  
 Adjustable shelves throughout  
 Central vacuum system  
 Complete PEX plumbing system  
 Countertop decorative edge treatment  
 Crown molding with decorative corner caps  
 Deluxe roller bearing, full-extension drawer guides and transit-ship locks  
 Fan-Tastic® power roof vent with wall switch (multiple locations)  
 Fully concealed and adjustable cabinet door hinges  
 Hardwood cabinet doors / drawers  
 Hardwood window treatments  
 Heated tile floor  
 Integrated latch hardware in pocket doors  
 LED lighting  
 Lined cabinet interiors  
 Manual double roller shades  
 Polished porcelain tile floor with accent inlays  
 (3) roof-mounted, high-efficiency 15,000 BTU/H A/C and bedroom heat pump  
 Soft touch padded ceiling with decorative trim  
 Solid wood face frame cabinets  
Driver Convenience
 110V power outlet at dash  
 Adjustable 3-point seatbelts at driver and front passenger seats (with adjustable shoulder straps)  
 Adjustable accelerator and brake pedals  
 Air horns  
 Anti-Lock Brake System (ABS)  
 Automotive wrap-around dash  
 Auxiliary fog lamps  
 Auxiliary start circuit  
 Backlit switches and gauges  
 Battery disconnect system  
 Color back-up monitor  
 Color rear and side-vision cameras  
 Cruise control  
 Denso® high-output auto A/C heater combo  
 Driver and passenger LED reading lights  
 Driver left-console with lower storage bin  
 Dual-dash monitor design  
 Manual driver / passenger roller shades / blinds  
 Multiple auxiliary 12V dash receptacles  
 Passenger armrest  
 Passenger seat power footrest and adjustable arm  
 Power entry step cover  
 Powered windshield privacy blinds and shades  
 Radio switch main / auxiliary power  
 Remote / heated chrome rear-view mirrors with turn signals and sideview cameras  
 Satellite radio (subscription required)  
 Smart wheel with tilt / telescoping steering wheel  
 Solid-surface entry-step with LED accent lights  
 USB charger (driver side)  
 Villa® driver / front passenger Ultraleather™ captain's chairs with reclining back / slide controls / power / heated / adjustable arms  
 Windshield wipers with wet arm  
 Xite® touch screen dash radio with GPS navigation and Sirius®  
Living Area
 50 in. LED HDTV mid-ship  
 Blu-ray DVD player  
 Electric fireplace  
 Front 32 in. LED HDTV in front overhead  
 Sound bar  
 TV antenna  
 Expandable L-sofa jackknife (43D, 43S)  
 Sofa with hide-a-bed  
 Hide-a-bed sofa with air mattress (43D, 43S)  
 Villa® residential seat styling  
 Adjustable cabinet shelves (select cabinets)  
 Decorative backsplash  
 Flush-mount electric 2-burner induction cooktop  
 High-rise single-level galley faucet with sprayer  
 Large, double solid-surface sink  
 Polished solid-surface countertops and sink covers  
 Pull-out counter extension  
 Residential refrigerator with icemaker in door  
 Under-galley shelving and wastebasket  
 30 in. / 1.9 cu.ft. stainless steel convection microwave oven with built-in range hood and lights  
 Bedroom entertainment center with 32 in. LED HDTV  
 Bedspread with decor pillows  
 Hardwood 6-panel doors  
 King bed with memory foam 72 x 80 in. (43D, 43Q, 43S)  
 King exclusive Dream Easy Series 72 x 80 in. (43G)  
 Lift-up bed with under-bed storage (43D, 43Q, 43S)  
 Manual roller shade and privacy blind  
 Mirrored wardrobe doors  
 Overhead cabinetry above bed  
 Polished solid-surface counter and nightstand tops  
 Rear wardrobe with cedar lining, carpeted floor and wire organizer  
 Remote generator start switch  
 A/C venting  
 Cabinet toe kicks  
 Decorative custom tile backsplash  
 Glass shower door  
 Hardwood bath door / trims  
 LED light over sink  
 Porcelain vacuum flush toilet  
 Sentrel shower enclosure with skylight (43D, 43G, 43Q)  
 Spa shower (43S)  
 Vanity with dual solid-surface sinks and make-up bench (43D)  
Plumbing / Electrical
 120V / 12V AC/DC converter  
 2,800W pure sine wave inverter with remote 50A service  
 Auto generator start  
 Demand water pump with filter  
 Diesel Aqua-Hot® heating system 50,000 BTU/H (house and water)  
 Gravity and pressurized fresh water fill  
 Heat pump on rear AC unit  
 Heated water and holding tank compartments  
 Holding tank San-T-Flush™ system  
 Inverter and battery monitor  
 Quiet cool ducted A/C  
 Waste management pump with power water hose reel  
 Water pump switch (multiple locations)  
 Whole coach water filtration system  
 3-point integrated seat belts at driver and passenger seats  
 Carbon monoxide detector / alarm  
 Central electrical panel  
 Energy Management System (EMS) with soft start  
 Fire extinguisher  
 Multiple seatbelt locations  
 Neutral loss protection  
 Smoke detector / alarm  
Exterior General Amenities
 1st full bay 36 / 54 in. S/O tray  
 2nd full bay 90 in. S/O tray  
 10 kW Onan® quiet diesel generator with power slide  
 20 ft. sewer hose  
 Aluminum wheels  
 Automotive safety glass  
 Continuous 1-piece compartment bulb seal  
 Daytime running lights  
 Electrical outlets in luggage compartments  
 Fiberglass front quarter panels  
 Fiberglass front / rear caps with high mounted taillights  
 Fiberglass wheel well trims  
 (4) 6V / deep-cycle house batteries  
 Front and mid-coach docking lights  
 Full-width rear rock guard with stainless logo panel  
 Heavy-duty E-coated steel Roadmaster™ bridge  
 High-mounted third brake light  
 Insulated aluminum luggage doors with single paddle metal latches and powercoat steel hinges  
 Keyless entry remote  
 LED clearance lights  
 Lighted luggage compartments  
 Molded fiberglass roof  
 Mud flaps  
 Park cable receptacle  
 Pass-through storage  
 Porch light  
 Power entry step  
 Powercord reel  
 Protective front mask  
 Roof mounted solar electric panel (95W)  
 Side docking lamps  
 Side swinging luggage doors  
 Side turn signal indicators  
 Sony 42 in. LED TV  
 Tire valve extenders  
 Toilet tank San-T-Flush™ system  
 Touch sensor tank monitoring system  
 Underhood utility light  
 Utility compartment with exterior shower  
Awnings / Doors / Windows
 Awning rail / drip molding (both sides)  
 Chrome luggage door handles  
 Doorside patio receptacle  
 Easy sweep flooring at entry step  
 Emergency egress window  
 Entry door with screen door and deadbolt lock  
 Frameless flush mount windows  
 Lighted entry assist handle  
 Power awning with LED light strip and wind sensor  
Exterior Body Construction
 5-layer floor with 3 in. foam insulation  
 6-layer radius roof with up to 5 in. foam insulation  
 Acoustic absorption material in front, rear and engine compartment  
 Aluminum-framed wall, roof and floor construction  
 Full fiberglass front and rear caps  
 Gel coat fiberglass sidewalls with no wood substrate  
 Insulated strut-assisted side-hinged luggage doors  
 Large 1-piece bonded-in windshield  
 Molded fiberglass radius roof with ducted A/C  
 Premium sand and buff 4-color full body paint  
 Reinforced interlocking aluminum connections at roof, sidewall and floor  
 Roadmaster chassis  
 Seamless cap to sidewall transitions  
 Vacu-bond® sidewall, roof, floor and rear wall  
Roadmaster™ Chassis
 (2) 1,900 CCA maintenance-free chassis batteries  
 Automatic 4-point dual (hydraulic) leveling system  
 Custom tuned Sachs® shocks (6)  
 Dual high-flow fuel fill with locking doors  
 Easy-access remote filter location  
 Engine block heater (1,000W)  
 Front air disc brakes and rear drum brakes  
 Heavy-duty E-coated steel Roadmaster bridge  
 Polished aluminum wheels (6) 22.5 x 8.25 in.  
 Protective spray-on undercoating  
 Remote air system connection with hose and fittings  
 Tag axle with air dump control  
 Ultrasteer® tag-axle suspension with passive steering  
 V-Ride® T20 20,000 lb. rear air suspension  
 ZF® independent front suspension with 60° steering angle  


Window Awning Package


 Interior General Amenities
 Winegard® stationary DSS system  
 Winegard in motion satellite system  
 Sofa jackknife (43D, 43S)  
 Desk with recliner (43Q)  
 Expandable L-sofa (43Q)  
 Facing dinette  
 King air mattress 72 x 80 in. (n/a 43G)  
 Exterior General Amenities
 2-piece aluminum rear ladder  
 Emergency exit door (n/a 43D)  
 Under chassis lighting  


Vapor Mist

Desert Mirage

Manhattan Bronze II

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*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.