Inside the 2026 Newmar Grand Star 3948: A Complete Walkthrough

Life on the road doesn’t have to be isolated; that’s the idea behind the all-new 2026 Newmar Grand Star. Whether you’re considering the 3444, 3940, or 3948, this Super C lineup blends comfort, drivability, and high-end design in a coach that feels like home from the start.

The 3948 model is built on the Freightliner S2RV chassis and powered by a 6.7L Cummins diesel engine with 360 horsepower and 800 lb-ft of torque. With a 12,000-pound towing capacity and features like an exhaust brake, paddle shifters, and generator start built into the dash, the Grand Star is ready for your next cross-country journey.

No matter which way you travel —solo or with the family— the Grand Star is built to match your lifestyle. Take a virtual walk through the Grand Star.

NEW 2026 Newmar Grand Star 3948

8 months ago 4.4k views

Cockpit: Control your ride

From air-ride seating to intuitive touchscreens, every aspect of the cab is designed to simplify the driving experience.

• Seating: Adjustable captain’s chairs with lumbar support and integrated armrests
• Displays: Sony 10-inch touchscreens for navigation, HVAC, and cameras
• Layout: Clean dash design that’s easy to use even for first-time RVers
• Access: Cruise control, leveling controls, and lighting are all within easy reach

Exterior: Stylish yet thoughtful

The exterior design isn’t just for looks. Storage and entertainment features are built into it to make road life a breeze.

• Storage: Side-hinged compartments with lighting and felt lining
• Entertainment: Swivel-mounted exterior Smart TV with soundbar
• Paint: Optional Onyx full-body paint with blackout trim
• Lighting: Entry-mounted master switch for quick control

Living room: Your space to unwind

The Grand Star 3948 offers a lounge area that feels bright, open, and ready for relaxation.

• Seating: Manual or powered theater recliners, depending on model
• Extra space: Booth dinette in the 3948 converts into additional sleeping space
• Windows: Large side windows for natural light and ventilation
• Storage: Deep overhead cabinets above seating areas

Kitchen: Cook like home

The Grand Star’s kitchen gives you real cooking options and clever storage for extended stays or quick meals.

• Cooktop: True Induction or removable dual-burner setups
• Microwave: WhirlpoolⓇ convection model with built-in air fryer
• Refrigerator: 18 cu. ft. residential fridge with ice maker and travel lock
• Countertops: Solid-surface counters with pull-out extension
• Storage: Full-extension drawers, tall pantry, and overhead cabinets

Bathroom: Compact but complete

High-end finishes and practical layouts make these bathrooms feel much more functional than most RV baths.

• Shower: 30" x 40" one-piece shower with modern fixtures and skylight
• Sink: Vessel or solid-surface sink options, depending on layout
• Cabinetry: Full-height linen cabinets, deep drawers, and upper storage
• Water heater: Truma Comfort Plus™ for continuous hot water

Bedroom: Sleep the night away

Every bedroom is designed for comfort, whether you’re parked for the night or living on the road.

• Bed: King-size in 3948 (if you're looking for a queen-size, check out the 3940)
• Storage: Lift-up under-bed space or reclining function, depending on floor plan
• Wardrobe: Dual closets, overhead cabinetry, and AV storage

Discover the 2026 Newmar Grand Star 3948 at Transwest

From weekend getaways to full-time travel, the 2026 Grand Star 3948 delivers a comfortable and capable RV experience. Explore the Grand Star in person, or keep shopping online.