New 2026 Grand Design Influence 3704BH Fifth Wheel

Dual entry; kitchen island; private bunk room
Virtual Tour Bunk House Bath and Half
2026 3704BH Features and Options

The 2026 Grand Design Influence 3704BH is a high-capacity bunkhouse fifth wheel designed for larger families or groups who want residential living space, multiple sleeping zones, and premium construction in a full-profile luxury RV. At approximately 40’4” in length with a dry weight around 14,800 lbs and a GVWR of 16,800 lbs, this model delivers one of the most spacious and versatile layouts in the Influence lineup, making it ideal for extended travel, seasonal camping, or full-time RV living.

Inside, the 3704BH is built around a true residential-style floorplan with a dedicated bunkhouse, expansive main living area, and private master suite, giving everyone in the coach their own defined space. The bunkhouse is a standout feature, offering multiple sleeping areas for kids or guests along with storage and optional entertainment space. This separation from the main living area helps maintain privacy and comfort during longer stays.

The main living area features opposing slide-outs that dramatically open up the space, creating a wide, open-concept layout centered around theater seating, a sofa, and an entertainment center with a fireplace. Large panoramic windows bring in natural light, making the interior feel even larger and more residential.

The kitchen is centrally positioned and designed for serious travel cooking, including a residential 16 cu. ft. refrigerator, 3-burner cooktop, oven, microwave, and solid-surface countertops, along with a large pantry for extended trips. The layout is designed to support both everyday meals and larger family cooking needs without feeling cramped.

Up front, the private master bedroom includes a walk-around queen bed (king optional), wardrobe storage, and washer/dryer prep, giving owners a true full-season setup. The adjacent bathroom features a large walk-in shower, porcelain toilet, vanity, and storage, positioned for convenient access from both the bedroom and main living area.

Built on Grand Design’s heavy-duty Influence platform, the 3704BH includes laminated fiberglass construction, a fully enclosed and heated underbelly, and upgraded insulation packages designed for extended-season camping and colder climates. Exterior features typically include dual power awnings with LED lighting, 4 slide-outs for maximum interior expansion, pass-through storage, and a 6-point auto leveling system for easier setup and stability at camp.


Reasons to Buy the 2026 Influence 3704BH

  • Spacious true bunkhouse layout for families or guests
  • Large residential-style living area with opposing slides
  • Private front master bedroom with washer/dryer prep
  • Full kitchen with residential 16 cu. ft. refrigerator
  • Sleeps up to 8 people comfortably
  • 4 slide-outs for maximum interior space expansion
  • Heated and enclosed underbelly for extended-season camping
  • Strong storage capacity inside and outside
  • Ideal for full-time RV living or long seasonal stays
  • Premium Grand Design Influence construction and resale value

Why Buy from Lazydays RV Powered by Campers Inn RV

  • Large selection of Grand Design Influence bunkhouse fifth wheels
  • Competitive financing options for qualified buyers
  • Factory-trained RV technicians and nationwide service network
  • Trade-in support to upgrade your current RV easily
  • Full walkthrough orientation before delivery
  • Trusted national RV dealership group with long-term support
What Our Customers Are Saying

Will be coming back!

Stopped in to look at options. Wonderful customer service, we were shown several different options to give us a good idea of what we liked and didnt like. Wish all lots were as attentive and helpful rather than pushing a big sale. Definitely will be back. - Lyncee
Price: $125,226
You Save: $40,249
Sale Price: $84,977
Campers Inn
Location: Tampa, FL
Stock# 21174933
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RV ID: 3380053#
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2026 3704BH Specifications
Sleeps 6
Slides 4
Length 40 ft 4 in
Ext Width 8 ft 5 in
Ext Height 13 ft 5 in
Int Height 8 ft 5 in
Hitch Weight 2728 lbs
GVWR 16800 lbs
Dry Weight 14798 lbs
Fresh Water Capacity 81 gals
Grey Water Capacity 106 gals
Black Water Capacity 106 gals
Tire Size ST215/75R17.5 LRH
Furnace BTU 35000 btu
Number Of Bunks 2
Available Beds Queen
Refrigerator Type 12 Volt
Refrigerator Size 16 cu ft
Cooktop Burners 3
Shower Size 48" x 30"
Number of Awnings 2
Axle Weight 7000 lbs
LP Tank Capacity 30
Water Heater Type Tankless
AC BTU 15000 btu
TV Info LR 40" LED Smart TV, BR LED TV
Awning Info 14' 5" & 10' 4"Power w/LED Lighting
Axle Count 2
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Standard
Electrical Service 50 amp
Solar Wattage 330 watts
VIN 573FS4224TAA22541
For more information Contact Us

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