Tiffin Motorhomes Allegro RED Motor Home Class A - Diesel


The Tiffin Motorhomes Allegro RED Class A diesel motorhome has been built to the highest standards, yours! Both inside and out, you will find that the Allegro RED just keeps getting better and better. Every trip is an adventure in excellence, and the powerful Rear Engine Diesel (RED) delivers a top-notch performance. You have a 10,000-LB towing capacity and an array of safety features.


While you are inside, you will be surrounded by entertainment and comfort. The luxurious tile floor forms the base, and the handcrafted cabinetry comes in a few optional colors. The luxury continues on with the amazing kitchen, glamorous bedroom, and exceptional bathroom. All of the Ultraleather seating is both stylish and practical, and the centralized entertainment center with Blu-Ray player as well as the sound bar sound system with living area TV provide the modern entertainment you've come to expect. The exterior ladder is now standard, and there are new Generation 6 paint schemes to choose from, plus optional Starlink prep if you want the option to have internet while you're on the road!


There is nothing quite as luxurious or unforgettable as the Tiffin Motorhomes Allegro RED Class A diesel motorhome!

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Motor Home Class A - Diesel

  1. Outdoor Entertainment, Rear Bedroom
    • Length: 35 ft 2 in
    • Slides: 4
    • Sleeps: 5

    24 Available Now!

  2. Bath and a Half, Outdoor Entertainment
    • Length: 38 ft 6 in
    • Slides: 3
    • Sleeps: 7

    22 Available Now!

  3. Bunkhouse, Bath and a Half
    • Length: 39 ft 6 in
    • Slides: 3
    • Sleeps: 7

    12 Available Now!

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Allegro RED Features:

Standard Features (2025)


Chassis & Drivetrain

  • Freightliner® XCM Modular Rail Rear Engine Diesel Chassis
  • Cummins® L9 380 HP Diesel Engine with 1150 lb-ft Torque
  • 160-Amp Alternator
  • Allison® 3000 MH 6-speed Automatic Transmission with Lock-up Torque Converter
  • Aluminum Wheels
  • Front and Rear 275/80R 22.5 Tires
  • (2) 12-Volt Flooded Lead-Acid Chassis Batteries
  • Hydraulic Leveling Jacks
  • Freightliner® V-Series VFS I-beam Front Suspension
  • Freightliner® V-Series V-Ride Rear Suspension
  • Custom Tuned Sachs® Shock Absorbers
  • Rear Radiator
  • Front Disc Brakes and Rear Drum Brakes
  • Full Air Brake System with Automatic Slack Adjusters
  • Single Stage Variable Geometry Turbocharger (VGT) Engine Brake
  • Manual Parking Brake
  • Drive and Passenger Dual Fuel Fill
  • Tire Pressure Monitoring
  • Adaptive Cruise Control
  • Automatic Traction Control
  • Collision Mitigation with Forward Warning and Active Braking
  • Electronic Stability Control


  • Seamless One-piece Gel-coat Fiberglass Molded Roof Cap
  • 5 1/4" Formed Roof Insulation
  • Tubular Aluminum Roof Skeleton Frames
  • Extraordinaire™ Ducted Air Cooling System
  • One-piece Molded Gel-coat Fiberglass Front and Rear Caps
  • Steel Cockpit Overhead Support Frame
  • Crane® Composites Noble® Select All-Composite Exterior Sidewalls
  • Tubular Aluminum Wall Skeleton Frames
  • High-performance Thermal Insulation in Sidewalls
  • Steel Floor Skeleton
  • Engineered Wood Sub-flooring
  • 1 1/2" Thick Thermal Insulation in Floor
  • Steel Basement Construction
  • Rust Protective Undercoating

Slide-Out Mechanisms

  • Combination Hydraulic and Electric Slide-out Mechanisms (only 33 AA)
  • Hydraulic Slide-out Mechanisms (N/A 33 AA)


  • Spyder Controls Multiplex System
  • Firefly Integrations Mira Module
  • Centralized 7.5” Spyder System Main Monitor
  • Interior Entryway Spyder System Color Touchscreen
  • Additional Spyder Color Touchscreens Throughout Coach
  • 8.0-Kilowatt Onan® Quiet Diesel Generator
  • Generator Slide Tray
  • 2,000-Watt Pure Sine Wave Inverter Charger with Auto-Gen Start and Interior Remote Control
  • Battery Slide-out Tray
  • 50-Amp Shore Power
  • Auxiliary Solar Port
  • HD Over-the-air Antenna
  • Park Cable and Ground Satellite Hook-up
  • Prep for In-motion Satellite
  • Blu-ray™ Player
  • Satellite Receiver
  • 12-Volt Breaker Panel
  • 12-Volt Disconnect Switch
  • Rotary Disconnect Switches for House Batteries, Chassis Batteries, and Inverter
  • Ground Fault Circuit Interrupter (GFCI) Outlets at Galley, Lavatories, and Sewer Bay
  • 110-Volt Exterior Receptacle
  • Surge Guard® Transfer Switch
  • USB Receptacles Throughout Coach

Heating & Cooktop Power Source

  • Liquid Propane (LP) Coach 
  • Hydronic Heating & Electric Appliance Equipped Coach (option)

House Battery 

  • (6) 6-Volt Flooded Lead-Acid House Batteries 
  • (6) 6-Volt Extended Cycle AGM House Batteries (option)

Air Conditioning

  • (2) 15,000-BTU Air Conditioners with Heat Pumps 
  • (2) 15,000-BTU Low Profile Air Conditioners with Heat Pumps and Condensation Drains (option)

Space Heating

  • (1) 35,000-BTU and (1) 30,000-BTU Ducted Furnaces (DEP 33 AA) (N/A other models)
  • (1) 30,000-BTU and (1) 20,000-BTU Ducted Furnaces (DEP 37 BA) (N/A other models)
  • (2) 30,000-BTU Ducted Furnaces ((DEP 38 KA) (N/A other models)
  • Aqua-Hot 250D Heat Exchanger (DEP)

Solar Panel

  • Prep for Solar Panels (option)
  • (1) 200-Watt Solar Panel with (1) 30-Amp Controller (option)
  • (3) 200-Watt Solar Panels with (1) 30-Amp Controller (option)

Electrical Add-On Options

  • In-motion Satellite Dish
  • Prewiring for Winegard® Trav’ler™ Satellite 
  • Wi-Fi Booster
  • Starlink Prep in Sewer Compartment


  • Aqua View Showermiser
  • Water Filter
  • Water Pump Switch Access from Spyder System and Sewer Bay Board
  • Low-point Water Drain Lines
  • Black Holding Tank Flush System
  • Gravity Water Fill
  • Heated Water and Holding Tank Compartment
  • Tank Level Monitor System
  • Centralized Exterior Sewer Bay with Gravity Black and Grey Evacuation Ports
  • Exterior Rinse Hose with Shower Head
  • Sewer Bay Hand Sanitizer and Paper Towel Holders

Water heater

  • Truma AquaGo Comfort Instant Water Heater (DEP)
  • Aqua-Hot 250D Heat Exchanger (DEP)
  • Water Heater Bypass System (DEP)


  • Full-body Paint with (3) Layers of Clear Coat
  • Single-colored Slide-out endwalls
  • High Performance Protective Film on Front Cap and Select Areas
  • (1)Girard® Powered Door Awning with Integrated LED Lighting
  • Girard Powered Door Awning with Integrated LED Lighting
  • Girard® Slide-out Toppers
  • Side-swinging Exterior Storage Doors with Gas Shocks
  • Lockable Handles on Compartment Doors
  • Motion-sensor Lights in Cargo Bay
  • 120-Volt and 12-Volt Outlets Inside Cargo Bays
  • Charcoal Carpet Cargo Walls
  • Fiberglass Reinforced Plastic Basement Floor
  • Frameless, Single-Pane Windows
  • Exterior Patio Light
  • Daytime Running Lights
  • Docking Lights
  • Chrome Power Heated Side-View Mirrors with Integrated Cameras
  • Exterior TV with Soundbar
  • Fast Charge USB ports within Exterior TV Compartment
  • Lightweight Entry Door with Integrated Screen
  • Entry Door Grab Handle
  • Deadbolt Front Entrance Lock
  • Automatic Double Entry Step
  • Front Door Entry System via Key Fob
  • Mud Flaps
  • Custom Rock Guard
  • Lippert On-The-Go Telescoping Ladder

Exterior Add-On Options

  • (1) Manual Storage Compartment Slide-out Tray

Paint Scheme Options

  • Generation 5 Exterior Paint Scheme
  • Generation 6 Exterior Paint Scheme

Paint Color Options

  • Euro Blue Full Body Paint
  • Frosted Granite Full Body Paint
  • Bordeaux Full Body Paint
  • Nasa Full Body Paint


  • Handcrafted Overhead Cabinetry
  • Carpeted Step Well with Composite Steps
  • Powered Step Well Cover
  • Living Area TV
  • Solid Surface Galley Countertop
  • Handcrafted Slide-out Fascia
  • Soft Touch Vinyl Ceiling
  • Dimmable LED Lighting
  • Prep for Washer and Dryer
  • Carbon Monoxide Detector
  • LPG Leak Detector
  • Smoke Detector
  • Fire Extinguisher
  • Solar and Privacy Shades
  • Soft-closing Drawers
  • Powered Roof Vents
  • Interior Grab Handle at Entry Door
  • Egress Windows Throughout Coach

Interior Decor Packages

  • Stoney Creek (option)
  • Solstice (option)

Upholstery Fabrics

  • Ultrafabrics® Montage Landscape  (DEP)
  • Ultrafabrics® Montage Alpaca (DEP)

Cabinetry Color

  • Sandstone (option)
  • White Linen (option)
  • Platinum (option)

Floor Tiles

  • Marble Obsess Gloss Porcelain Tile (option)
  • Marble Obsess Matte Porcelain Tile (option)

Interior Add On Options

  • Standalone Living Area Fireplace (Option; N/A 37 BA)
  • Stacked Washer and Dryer
  • Gold Heat® Dual Zones Heated Tile Floor
  • Central Vacuum System

Driver's Compartment

  • Ultrafabrics® Montage Power Driver and Passenger Seats
  • Dual Driver And Passenger Seat Armrests
  • Swivel Bases for Driver and Passenger Seats
  • Adjustable Seatbelt Brackets
  • Powered Passenger Seat Footrest
  • Tilt and Telescoping Steering Wheel with Integrated Controls
  • Adjustable Accelerator and Brake Pedals
  • Wraparound Dash with Matte Gray Accents
  • Mounted Dash Fans
  • Cupholders on Driver and Passenger Side
  • Digital Dash Cluster
  • (1) Center Storage Drawer
  • Generator Start & Stop Rocker Switch
  • USB Dash Receptacles
  • 12-Volt Dash Receptacle
  • Backlit Dash Rocker Switches
  • Passenger Console Controls for Map Light, Fan, and Step Well Cover
  • Driver and Passenger Map Lights
  • One-piece Panoramic Windshield
  • Single-motor Intermittent Windshield Wipers
  • Automatic LED Headlights
  • Side-view Cameras 
  • Color Back-up Camera
  • 7" High Definition LED Multichannel Monitor for Side-view and Back-up Cameras
  • Stereo with AM & FM Radio, CD Player, and Satellite Radio
  • Ceiling Mounted Speakers
  • Overhead Cabinetry with Wooden Panel Doors
  • Auxiliary Start Switch
  • Concealed Air Horn
  • Manual Opening Driver Side Window
  • Solid, Non-opening Passenger Side Window
  • Powered Solar and Privacy Windshield Shade
  • Manual Solar and Privacy Shades on Side Windows

Driver's Compartment Options

  • In-dash Navigation System
  • Front Overhead TV
  • Electric Front Overhead Drop-Down Bunk

Dinette and Living Area

Driver Side Dinette

  • 75" Booth Dinette-Sleeper (STD 37 BA Only)
  • 75" Dinette with Chairs (option 37 BA Only)
  • 75" U-shaped Dinette (option 37 BA Only)
  • 72" Booth Dinette-Sleeper (STD 38 KA Only)
  • 72" Dinette with Chairs (option 38 KA Only)
  • 72" U-shaped Dinette (option 38 KA Only)

Driver Side Furniture

  • 85" Air Coil Sofa Bed with Recliner (STD 33 AA Only)
  • 114" Super Sofa (option 33 AA Only)
  • 74" Air Coil Sofa Bed (STD 37 BA Only)
  • 74" Theater Seating (option 37 BA Only)
  • 85" Air Coil Sofa Bed (STD 38 KA Only)
  • 83" Theater Seating (option N/A 37 BA)

Passenger Side Dinette (Only 33 AA)

  • 72" Booth Dinette-Sleeper (STD)
  • 72" Dinette Bar with Lift TV (option)
  • 72" Dinette with Chairs (option)
  • 72" U-shaped Dinette (option)

Passenger Side Furniture

  • 64" DE Sofa Bed with Lift TV (only 37 BA)
  • Recliner and Lift TV (option 37 BA only)
  • Passenger Side Bunk Beds (28" x 70") (38 KA Only)
  • Telescoping Ladder for Bunk Beds (DEP; 38 KA Only)


  • 1.7-Cubic Foot Smart Convection Microwave with Air Fry
  • Double Bowl Kitchen Sink with Single Lever Faucet and Pull-down Sprayer
  • Galley Overhead Cabinets
  • Panoramic Galley Window
  • Task Lighting
  • Full Tile Backsplash
  • Solid Surface Galley Countertop, Sink, and Cooktop Cover


  • 20-Cubic Foot Stainless Steel Residential Refrigerator with Top Freezer (N/A 38 KA)
  • 23-Cubic Foot Stainless Steel Residential Refrigerator with French Doors and Bottom Freezer (Only 38 KA)

Cooking Appliances

  • Three-Burner Liquid Propane Cooktop DEP (STD)
  • Oven Range with Liquid Propane Cooktop DEP (option)
  • Two-Burner Induction Cooktop (DEP)
  • Drawer-style Dishwasher (option)

Extendable Countertops

  • Flip and Fold Countertop Extension (Only 33 AA)
  • Manual Release Expand-An-Island (N/A 33 AA)


  • Under Bed Storage
  • Bedside Windows
  • Overhead Cabinets with Headboard
  • Bed Comforter with Throw Pillows
  • Handcrafted Privacy Door
  • LED Reading Lights
  • Nightstand with Solid Surface Tops
  • Mounted Bedroom TV
  • Centralized Entertainment Center
  • Ceiling Fan
  • Laundry Hamper

Mattress Options

  • Memory Foam King Mattress (72" x 80") (STD)
  • Memory Foam Queen Mattress (option) (60" x 80") (N/A 33 AA)

Bedroom Storage

  • Floor-to-ceiling Closet Space (33 AA Only)
  • Wardrobe with Drawers Underneath (N/A 33 AA)

Bedroom Add On Options

  • Bedroom Egress Door


  • (1) Porcelain Master Bathroom Sink
  • Solid Surface Lavatory Top
  • Handheld Shower Head with Slide Bar
  • Shower Skylight
  • Shower LED Light with Sliding Cover
  • Towel and Toilet Paper Holders
  • Mirrored Medicine Cabinet
  • Roof Vent Fan
  • Base Cabinet

Number of Bathrooms

  • (1) Bathroom (33 AA Only)
  • (1) Bathroom and (1) Half-Bath (N/A 33 AA)


  • One-Piece Molded Fiberglass Shower (34.5" x 34.5") (Only 33 AA)
  • One-Piece Molded Fiberglass Shower (28.5" x 40.5") (N/A 33 AA)


  • (1) Gravity Flush Toilet (Only 33 AA)
  • (1) Gravity Flush Toilet and (1) Macerator Toilet (N/A 33 AA)

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 the current environment, our features and options are subject to change due to material availability.


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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.