2026 Grand Design Influence 3503GK

Vehicle Photo
  • MSRP: $117,200
  • Dealer Discount: $17,205
  • Finance Incentive: $4,000
  • Sale Price: $95,995
  • As Low As: $642 /mo (Edit)
Stock #: 21174935
Tampa, FL
  • Available
  • New
  • Class: Fifth Wheel
  • Length: 38 ft 3in
  • Slides: 3
  • Dry Weight: 13,500
  • Sleeps: 4

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  • Front Bedroom
  • Kitchen Island
  • Rear Living Area
Floorplan
  • Available Beds Queen
  • Exterior Height 13 ft 5in
  • Exterior Width 8 ft 5in
  • Interior Height 8 ft 5in
  • Pin Weight 2,670 lbs
  • Gross Weight 18,000 lbs
  • Dry Weight 13,500 lbs
  • Tire Size ST215/75R17.5 LRH
  • Axle Count 2
  • Fresh Water Capacity 81 gal
  • Grey Water Capacity 106 gal
  • Black Water Capacity 53 gal
  • Furnace BTU 35,000
  • Refrigerator Type 12 Volt
  • Refrigerator Size 16
  • Cooktop Burners 3
  • Shower Size 48"" x 30
  • Shower Type Standard
  • Number of Awnings 2
  • Electrical Service 50 amps
  • Washer/Dryer Available Yes
  • TV Info LR 40"" LED Smart TV, BR LED TV

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 R

†Lazydays strives to ensure the accuracy of the information provided on this website. However, actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing or specifications. Specifications and availability subject to change without notice. Price, length, weight, or any other specifications cannot be relied upon. Buyers should verify and confirm all claims made on the website. Sale price includes all manufacturer discounts and rebates. All prices listed on this site exclude tax, tags and title fees. Applicable government fees, state taxes, dealer fees and emissions testing charges will be added to comply with state vehicle codes. Freight and prep costs are additional and vary by state. Contact Lazydays for complete details.

*90 Days – Payments can be deferred for 90 days with approved credit. Interest accrues from contract date. Financing terms subject to lender approval. Not valid with other offers. Actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing. Specifications and availability subject to change without notice. Document fees vary by location. See dealership for complete details.

**Lazydays believes the specifications on this site supplied by the manufacturer to be correct at the time posted. However, specifications, standard equipment, model availability, options, fabrics, and colors are subject to change without notice. Some equipment may be unavailable when a vehicle is built. Some vehicles are pictured with options, which may be available at extra cost or may not be available on some models. You should verify the equipment that is on all vehicles. If a new vehicle shown on this website is subject to an open safety recall, Lazydays cannot deliver the vehicle to you until the recall repair is completed. This is a requirement of federal law.

***The advertised discount contains a $4,000 finance incentive. Finance Incentive applies if financing for your RV purchase is obtained with assistance by Lazydays and placed with a third party lender. Terms and Conditions may apply. Contact our finance department for further details.

****Margaritaville offer valid for a limited time only at Lazydays RV of Tampa. Customers who purchase a new RV or complete a qualified service appointment (appointment must be booked and customer must show for the appointment) are eligible to receive a complimentary 3-day, 2-night stay at Camp Margaritaville RV Resort of Auburndale. Offer valid while supplies last. Promotion is non-transferable, has no cash value, and cannot be combined with other offers or promotions. Limit one promotional stay per customer, per transaction. Resort stay subject to availability and blackout dates may apply. Resort reservation must be made within 30 days of RV purchase or completed service appointment. Valid for Florida residents and legal U.S. residents only, 18 years or older. Additional terms and conditions may apply. Lazydays RV of Tampa reserves the right to modify or cancel this promotion at any time without notice. Void where prohibited by law.