2026 Grand Design Lineage 25TK

Introducing the new Grand Design Lineage 25TK Class C Motorhome — 2026 Model

Experience a new level of innovation and luxury with the 2025 Lineage 25TK, a groundbreaking Class C motorhome from Grand Design RV designed for travelers who want premium comfort in a compact, easy-to-drive coach. Built on the Mercedes-Benz Sprinter 4500 chassis, this sophisticated motorhome delivers a smooth, stable ride while surrounding you with modern design and smart engineering. At just over 25 feet long, the Lineage 25TK packs impressive features into a manageable size, including a versatile twin-to-king rear sleeping system, a spacious living area, and high-end finishes throughout. With advanced lithium power, solar capability, and thoughtful storage solutions, this motorhome is ready for extended adventures on or off the grid.

Floorplan and Design

The 25TK floorplan in the Lineage Series by Grand Design RV is thoughtfully designed to maximize comfort, flexibility, and residential-style living in a compact Class C motorhome. At the rear, the versatile twin beds easily convert into a spacious king-size bed, giving travelers the option of separate sleeping areas or a larger shared bed while still maintaining easy nighttime access and additional storage underneath. The mid-coach bathroom offers a roomy shower, toilet, and sink with smart separation from the main living space, creating a more private and functional layout for daily use. Just forward, the well-equipped galley kitchen features solid-surface countertops, a cooktop, microwave, refrigerator, and generous cabinetry, making meal preparation simple whether you're on a weekend getaway or a longer trip. Up front, the comfortable dinette and swivel cab seats create a flexible living and dining space that’s perfect for relaxing, working remotely, or enjoying meals. Combined with smart storage throughout and a bright, open interior design, the 25TK floorplan delivers an ideal balance of sleeping comfort, living space, and everyday convenience for life on the road.

Key Details

• Brand: Grand Design
• Model: Lineage
• Type: Class C
• Year: 2026
• Floorplan: 25TK 
• Stock #: 15034
• VIN: W1X9N33Y4SN328250
• Condition: New, On Lot
  

Why This Motorhome Stands Out

• Mercedes-Benz Sprinter Diesel Performance: Built on the Mercedes-Benz Sprinter 4500 chassis with a twin-turbo diesel engine and 9-speed automatic transmission, delivering smooth handling, strong torque, and advanced safety technology for confident travel. 
• Single Slide-Out for Expanded Living Space: The slide-out creates a larger living and dining area without adding complexity to setup at the campsite. 
• Advanced Off-Grid Capability: Equipped with lithium batteries and solar power, allowing travelers to stay off-grid longer while still powering key systems and appliances. 
• Premium Technology & Driver Features: The Mercedes MBUX multimedia system with a 10.25-inch touchscreen, Apple CarPlay, Android Auto, and advanced driver-assist features enhance both convenience and safety.
• Trusted Quality from Grand Design: Grand Design RV is known for thoughtful floorplans, strong construction standards, and customer-focused support, making it one of the most respected and fastest-growing brands in the RV industry.
  

Availability and Next Steps

The 2025 Lineage 25TK blends luxury, innovation, and versatility into one remarkable coach—making it the perfect choice for travelers who want to explore farther while enjoying the comfort of home. This unit is currently active and available. To learn more information, request additional photos, schedule a viewing, or discuss financing options, contact our sales team.