2026 Grand Design Lineage 25TK

Grand Design Lineage Class C Motorhome 25TK (2026) – Mercedes-Benz Sprinter Diesel RV

Discover the Grand Design Lineage, a premium Class C motorhome built on the Mercedes-Benz Sprinter 4500 cab chassis. At 25 feet 8 inches in length, this diesel-powered RV offers nimble campground maneuverability without sacrificing livability. The bunk-over-cab design, combined with a thoughtful floorplan that includes Front Living Area, Mid Bath, Mid Kitchen, and a Rear Bedroom, makes it ideal for families and weekend explorers. A single slide-out expands the living space while preserving easy highway handling and diesel efficiency. The Lineage 25TK blends modern comfort with dependable performance for memorable road trips and adventures.

Key Specifications

• Classification: Motorized RV (Class C)
• Brand/Model: Grand Design Lineage
• Type: Class C motorhome
• Chassis: Mercedes-Benz Sprinter 4500 Cab Chassis
• Engine: Twin-Turbo 2.0 L Inline 4 Cyl Diesel
• Transmission: 9G-Tronic Automatic
• Length: 25 feet 8 inches
• Width: 7 feet 11 inches
• Height: 11 feet 5 inches
• Fresh Water Capacity: 36 gallons
• Grey Water Capacity: 30 gallons
• Black Water Capacity: 35 gallons
• Bed Sleeps: 4
• Slides: 1
• Fuel Type: Diesel
• GVWR: 12,125 lbs
• Mileage: 1,001
• Floorplan: 25TK
• Floorplan Types: Bunk Over Cab, Front Living Area, Mid Bath, Mid Kitchen, Rear Bedroom
• Year: 2026
• Stock Number: 15496
• New Status: Yes

Interior Comforts & Features

• U-Shaped Dinette for group dining and entertaining
• Day/Night Shades for privacy and light control
• Microwave, Refrigerator, Stove Top Burner, Kitchen Sink
• Water Heater for hot showers on the go
• Shower and Toilet with Medicine Cabinet
• Air Conditioning with 15,000 BTU capacity
• Bunk Over Cab sleeping area and Rear Bedroom for versatile sleeping options
• TV with Stereo System and Exterior Speakers
• 1 Slide-Out to expand living space when parked
• 1 Battery setup to support off-grid or dry camping scenarios
• Safety features: CO Detector, Fire Extinguisher, LP Detector, Smoke Detector

Living Experience & Convenience

This Lineage 25TK offers a balanced, family-friendly layout that simplifies travel. The bunk-over-cab area provides flexible sleeping space, while the front living area is ideal for lounging and socializing. The mid kitchen and mid bath arrangement keeps daytime activities flowing smoothly, and the rear bedroom provides a comfortable retreat after a day of exploration. With a single slide-out, you gain enhanced livability without compromising the vehicle’s compact footprint, delivering a refined, easy-to-drive recreational vehicle experience.

Availability & Contact

Stock number 15496 indicates this unit is currently available as a new 2026 model. For availability, pricing, and to arrange a viewing, contact your dealership today.