2026 Grand Design Momentum M-Class 399M

This RV is available for sale at our GALWAY TWP location: 920 West White Horse Pike, Egg Harbor City, NJ.

2026 Grand Design Momentum 399M – Fully Equipped, Luxury Toy Hauler

• 12' 6" garage with P2K power bed lift, tie-down system, dual-entry ramp patio, and rear aluminum deck system w/ rear power awning
• Triple-AC comfort including 3rd A/C and main A/C with heat pump for extended-season camping
• Onboard 6kW generator for true off-grid capability
• MorRyde 7K Independent Suspension 2.0 w/ DISC brakes—superior handling, towing, and stopping power
• Solar ½ Package for better battery support while boondocking
• GEN III 3-season glass sliding door—keeps the garage comfortable in all weather
• Exterior patio package with side patio, Momentum patio chairs, 65" TV, griddle, and oversized awnings
• Rockford Fosgate Stage 1 stereo for premium sound inside and out
• Luxury living area featuring full recline seating, 50" TV, smart storage entertainment wall, hybrid dinette workstation & large windows
• Chef-ready kitchen with 20 cu. ft. refrigerator, pull-out countertop extension, microwave, oven, and deep pantry
• Spacious bath with walk-in shower, linen cabinet & premium fixtures
• Upgraded KING bed suite with washer/dryer prep, dresser storage & TV prep
• Pass-thru storage, universal docking station & triple aluminum Solid Step entries
• Slide-out toppers installed for added protection and reduced maintenance
• Why This RV Will Work for You: Ideal for toy hauler buyers needing a true multi-zone coach—garage for toys or second bedroom, side patio for entertaining, and luxury residential comfort for long-term travel.

Choosing White Horse RV Center in NJ means more than just buying an RV; it’s about investing in a seamless, enjoyable experience filled with benefits. With over 50 years of expertise, we ensure your RV journey is fun and hassle-free. Our RV essentials package and transparent pricing guarantee no surprises. Plus, enjoy a complimentary membership in the RT66 Customer Care Promises, providing peace of mind on the road. Experience the difference with White Horse RV Center—your trusted partner in RV adventures.
White Horse RV – Your RV adventure starts here.

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