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Tiffin Motorhomes Allegro RED 340 Motor Home Class A - Diesels

Reach new heights at any elevation.

Impeccably appointed and smartly equipped, the new Allegro RED 340 combines luxury, power, and safety all into one affordable RV. Settle into the plush Ultraleather captain’s chairs, turn the key, and let the RED 340's energetic, rear-diesel engine smoothly propel you to your next adventure. The Freightliner Roadwatch safety package helps to protect you on your journey, and when you arrive, the RED 340 really shines. There’s two flat-screen TVs and a sound bar system for entertainment. A thoughtfully designed kitchen, with handcrafted cabinetry for storage. Plus a king-size memory foam mattress awaiting in the bedroom. All of which make anywhere you stop feel just like home. So any time you’re ready to hit the road, the new RED 340 is too.

WHY CHOOSE Allegro RED 340

  • Straight Rail Chassis Frame
  • Exterior Flat Panel TV
  • Ultraleather Super Sofa
  • Residential Refrigerator
  • 340 HP Cummins B6.7 Engine

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Motor Home Class A - Diesel

  1. Virtual Tour
    • Sleeps 5
    • 2 Slides
    • 40ft long
    • Bath and a Half
    • Outdoor Entertainment
    ...View Floorplan
    • MSRP: $340,251
    From $2,275* /mo.
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Allegro RED 340 Features:

Standard Features (2023)



  • Cummins® B6.7 Engine
  • Allison® 2500 MH 6-speed Automatic Transmission with Lock-up
  • Peak HP 340 HP @ 2,600 RPM
  • Peak Torque (lb — Ft. Max Net) 700 @ 1,600 RPM
  • Straight Rail Chassis Frame
  • Adaptive Cruise Control
  • Collision Mitigation with Forward Warning and Active Braking
  • Electronic Stability Control with Roll Stability Support
  • Automatic Traction Control
  • Air Ride Suspension
  • Full Air Brakes
  • Exhaust Brake
  • Four Aluminum Wheels
  • Tire Pressure Monitoring
  • Air Leveling System

Plumbing and Electrical

  • 8.0 kw Onan® Generator
  • Four 6 V House Batteries
  • 50 Amp Service
  • Two Roof ACs with Heat Pumps (15 K BTUs)
  • 2000 Watt Pure Sine Wave Inverter
  • Tank Level Monitoring System
  • Heated Holding Tank Compartment
  • Prep for Satellite Prep for Solar Panel
  • Spyder® Multiplex System 1
  • Aquaview ShowerMiser
  • Truma® Gas Continuous Water Heater
  • Wi-Fi Booster (Optional)
  • In-Motion Satellite (Optional)

Driver's Compartment

  • Tilt and Telescoping Steering Wheel with Integrated Controls
  • One Drawer in Dash
  • Power Suspended Adjusted Throttle and Brake Pedals
  • Digital Dash Cluster
  • CD Player and AM/FM Stereo
  • Power Solar and Privacy Windshield Shades
  • Fire Extinguisher
  • Ceiling Mounted Speakers
  • In-dash Navigation System
  • Manual Solar and Privacy Shades on Side Windows
  • Six-way Power Driver and Passenger Seats
  • Color Back-up Monitor
  • Overhead Front Bunk (Optional)


  • Fiberglass Front and Rear Caps
  • Front Cap Protective Film
  • Tinted One-piece Windshield
  • Horizontal Mounted Wipers
  • Heated Power Mirrors
  • Exterior Patio Light
  • Power Patio Awning
  •  Patio Side Exterior TV
  • Awning(s) over Slide-outs
  • Double Electric Step
  • Full-body Paint
  • Convenient Access Doors with Gas Shocks
  • Single Handle Lockable Storage Door Latches
  • Charcoal Carpet Cargo Storage Walls
  • Sewer Hose Storage
  • Product Logo
  • Gen 2 Paint Schemes
  • Fast Charge USB Ports for Exterior TV Box
  • Lippert™ On-The-Go™ Ladder (Optional)


  • Soft Touch Vinyl Ceiling
  • Flat-panel TV in Entertainment Center with Soundbar
  • Treated Carpet and Fabrics
  • Ball Bearing Drawer Slides
  • Solar and Privacy Shades
  • Power Roof Vents
  • Smoke Detector
  • Carbon Monoxide Detector
  • LED Lighting
  • LPG Leak Detector
  • BluRay® Player 
  • Residential Refrigerator
  • Manual Step Cover
  • Central Vacuum Cleaner (Optional)
  • Handcrafted Cabinetry
    • Natural Alder
  • Fabric Suites Options
    • Moodance
    • Stonewasher
  • Floor Tiles
    • Seagrass (Matte Finish)
  • Ultraleathers
    • Trail
    • Taupe Hill (Optional)


  • Large Kitchen Sink with Single Lever Faucet
  • Solid Surface Galley Countertop
  • 3-burner Cooktop
  • Convection Microwave
  • Residential Refrigerator
  • Oven with Cooktop/Convection Microwave (Optional)

Dinette/Living Area

  • Ultraleather Booth Dinette/Sleeper on Passenger Side (N/A 38 LL)
  • Ultraleather Booth Dinette/Sleeper on Driver Side (N/A 33 AL)
  • Ultraleather Super Sofa on Driver Side
  • Dinette with Computer Workstation on Passenger Side (Optional 33 AL; N/A 38 LL)
  • Fireplace (Optional)


  • Flat-panel TV
  • Solar/Privacy Shades
  • Memory Foam King Mattress (72" x 80")


  • Medicine Cabinet
  • Fiberglass Shower
  • Roof Vent Fan

See us for a complete list of features and available options!

All standard features and specifications are subject to change.

All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.

Due to Covid19 supply chain issues, some features and options shown may be temporarily substituted or removed.


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Tiffin Motorhomes is proud to be one of the few family-owned manufacturers in the industry, and it makes a significant difference in how our company operates versus our competitors. For starters, with the Tiffin name on every coach, building a superior motorhome isn’t just our occupation. It’s a matter of personal pride, a pursuit we have committed our lives to perfecting.

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