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The New 2026 Grand Design Influence 3503GK is a luxury fifth wheel built for buyers who want residential comfort, upscale design, and a spacious rear living layout. At 38 feet 3 inches with a UVW of 13,500 pounds, this coach offers the room and presence many extended-stay travelers are looking for, while still delivering the polished, modern feel Grand Design is known for. 

One of the biggest highlights of the 3503GK is its couples-focused floorplan. This model features a rear living roomkitchen islandfree-standing dinetteprivate bedroom, and fireplace, giving it the kind of open, residential flow that works beautifully for relaxing, entertaining, or longer trips. It also offers a 16 cu. ft. refrigeratortankless water heater, and sleeping capacity for up to 4, making it a strong option for travelers who want comfort and practicality in one refined package. 

The 2026 Influence line also brings strong travel-ready construction and utility features. Official specs list 81 gallons of fresh water106 gallons of gray water capacity53 gallons of waste water capacity, a 35,000 BTU furnace, and 15,000 BTU A/C. The 3503GK also includes independent suspension with 17.5-inch wheels, plus Grand Design’s Influence Solar Package with a 330W solar panel, controller, and inverter prep. 

For buyers looking for a fifth wheel that blends luxury, livability, and premium towable design, the New 2026 Grand Design Influence 3503GK stands out as an excellent choice with residential appeal and strong extended-stay potential. 

Why buy from Lazydays RV powered by Campers Inn?

  • Wide selection of new and pre-owned RVs in one convenient location
  • Knowledgeable RV professionals to help match you with the right coach
  • Financing options to help make ownership more accessible
  • Trade-in assistance to simplify the buying process
  • A trusted dealership experience backed by recognized names in the RV industry

New 2026 Grand Design Influence 3503GK

Type: Fifth Wheel
Condition: NEW
Year: 2026
Manufacturer: Grand Design
Brand: Influence
Model: 3503GK
Weight (Dry/Gross): 13500 lbs / --
Sleeps: 4
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