New and used 37RB DX3 by Dynamax RVs for sale

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New 2025 Dynamax DX3 37RB image
New 2025 Dynamax DX3 37RB
  • Call for price
  • CAMPERS INN RV JACKSONVILLE NORTH, FL
  • Jacksonville, FL
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Dynamax DX3 Super C diesel motorhome 37RB highlights:

  • Dual-Sink Vanity
  • Full and Half Bath
  • Tri-Fold Sleep Sofa
  • Master Suite
  • Residential Refrigerator
  • Exterior Entertainment

 

This fabulous DX3 Super C diesel motorhome gives you the feeling of home! You will all love spending the cool summer evenings outside underneath the 18' armless awning with LED lights and wind sensor as you watch a late-night movie on the exterior 32" LED TV. Head inside and grab some snacks from the kitchen pantry or heat up some popcorn in the convection microwave. After the day is over, you'll certainly look forward to snuggling up in the king-size bed.

 

You'll have a hard time finding anything else that quite compares to the powerful precision found on the Dynamax DX3 Super C diesel motorhome! These elegant coaches will feel like a dream home with their top-notch kitchens, deluxe bedrooms, comfortable lounge areas, and exceptional exteriors. The cab has leatherette driver/passenger air ride seats with swivel bases, a quad-view camera system, and a Kenwood 7" touchscreen dash infotainment system to keep you comfortable while you travel, and the Winegard in-motion T4 satellite will deliver entertainment for the living room TV, bedroom TV, and exterior TV. You'll also find an 8kW Onan® diesel generator with auto transfer switch to make it easy to adventure since you will have your own power source. \

 

Stock Model Year 2023 Specs and Details Shown.

New 2024 Dynamax DX3 37RB image
New 2024 Dynamax DX3 37RB
  • Call for price
  • A&L RV SALES SEVIERVILLE, TN
  • Kodak, TN
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Dynamax DX3 Super C diesel motorhome 37RB highlights:

  • Dual-Sink Vanity
  • Full and Half Bath
  • Tri-Fold Sleeper Sofa
  • Master Suite
  • Residential Refrigerator
  • Exterior Entertainment

 

This fabulous DX3 Super C diesel motorhome gives you the feeling of home! You will all love spending the cool summer evenings outside underneath the 18' armless awning with LED lights and wind sensor as you watch a late-night movie on the exterior 32" LED TV. Head inside and grab some snacks from the kitchen pantry or heat up some popcorn in the convection microwave. After the day is over, you'll certainly look forward to snuggling up in the king-size bed.

 

You'll have a hard time finding anything else that quite compares to the powerful precision found on the Dynamax DX3 Super C diesel motorhome! These elegant coaches will feel like a dream home with their top-notch kitchens, deluxe bedrooms, comfortable lounge areas, and exceptional exteriors. The cab has leatherette driver/passenger air ride seats, a quad-view camera system, and a Kenwood 10" touchscreen dash infotainment system to keep you comfortable while you travel, and the Winegard in-motion T4 satellite will deliver entertainment for the living room TV, bedroom TV, and exterior TV. You'll also find an 8kW Onan® diesel generator with auto transfer switch to make it easy to adventure since you will have your own power source. 

Used 2021 Dynamax DX3 37RB image
Used 2021 Dynamax DX3 37RB
  • $239,995.00
  • CAMPERS INN RV JACKSONVILLE NORTH, FL
  • Jacksonville, FL
View Details

Dynamax DX3 Super C diesel motorhome 37RB highlights:

  • Dual-Sink Vanity
  • Full and Half Bath
  • Hide-A-Bed Sofa
  • Master Suite
  • Residential Refrigerator
  • Exterior Entertainment

 

This fabulous DX3 Super C diesel motorhome gives you the feeling of home! You will all love spending the cool summer evenings outside underneath the 18' armless awning with LED lights and wind sensor as you watch a late-night movie on the exterior 32" LED TV. Head inside and grab some snacks from the kitchen pantry or heat up some popcorn in the convection microwave. After the day is over, you'll certainly look forward to snuggling up in the king-size bed.

 

The impressive Detroit DD8 7.7L turbo diesel engine is what powers the prestigious Dynamax DX3 Super C diesel motorhome! The DX3 also has some features that are additionally impressive, like the 375 HP, the 1,050 LB-FT of torque, the 100-gallon fuel capacity, and the 20,000-LB towing capacity. All of this power has been coupled with an interior living space that exceeds all expectations. Some of the interior features that will entice you are the hardwood cabinetry, Kenwood 7" touchscreen dash infotainment system, Multiplex wiring with touchscreen command center, Winegard® ConnecT 2.0™ dome antenna, and the Winegard® in-motion T4 satellite.

New 2025 Dynamax DX3 37RB image
New 2025 Dynamax DX3 37RB
  • $359,995.00
  • PARRIS RV MURRAY NORTH
  • Murray, UT
View Details

Dynamax DX3 Super C diesel motorhome 37RB highlights:

  • Dual-Sink Vanity
  • Full and Half Bath
  • Tri-Fold Sleeper Sofa
  • Master Suite
  • Residential Refrigerator
  • Exterior Entertainment

 

This fabulous DX3 Super C diesel motorhome gives you the feeling of home! You will all love spending the cool summer evenings outside underneath the 18' armless awning with LED lights and wind sensor as you watch a late-night movie on the exterior 32" LED TV. Head inside and grab some snacks from the kitchen pantry or heat up some popcorn in the convection microwave. After the day is over, you'll certainly look forward to snuggling up in the king-size bed.

 

You'll have a hard time finding anything else that quite compares to the powerful precision found on the Dynamax DX3 Super C diesel motorhome! These elegant coaches will feel like a dream home with their top-notch kitchens, deluxe bedrooms, comfortable lounge areas, and exceptional exteriors. The cab has leatherette driver/passenger air ride seats, a quad-view camera system, and a Kenwood 10" touchscreen dash infotainment system to keep you comfortable while you travel, and the Winegard in-motion T4 satellite will deliver entertainment for the living room TV, bedroom TV, and exterior TV. You'll also find an 8kW Onan® diesel generator with auto transfer switch to make it easy to adventure since you will have your own power source. 

Used 2018 Dynamax DX3 37RB image
Used 2018 Dynamax DX3 37RB
  • $194,960.00
  • SEWELL, NJ
  • Sewell, NJ
View Details
Dynamax DX3 motor home class C - diesel 37RB highlights:
  • Rear Bath
  • His/Her Sinks
  • Half Bath
 

Used 2018 Dynamax DX3 37RB – Power, Luxury, and Adventure in One Stunning Package

If you’re searching for a Class C motorhome that offers the strength of a Super C with the elegance of a high-end diesel pusher, your search ends here. The Used 2018 Dynamax DX3 37RB delivers exceptional power, world-class luxury, and high-tech convenience, all built on a Freightliner M2-106 chassis. With a 350 HP Cummins diesel engine and unmatched craftsmanship, this RV is made for those who want to hit the road without compromise.

 

This beautiful coach features full-body paint, stunning residential finishes, and a floor plan designed for comfort—whether you’re full-timing, weekend wandering, or embarking on epic cross-country road trips.

 

Top Features of the 2018 Dynamax DX3 37RB:

  • Robust 350HP Cummins engine with 1,000 lb-ft of torque for effortless towing and confident driving

  • One and a half bathrooms, including a large rear bath with a residential shower

  • Spacious living area with theater seating and a Dream Dinette

  • Residential kitchen featuring solid-surface countertops, residential refrigerator, convection microwave, and induction cooktop

  • King-size bed in the private master suite for restful nights

  • Multiplex lighting system, premium entertainment package, and sound system

  • Washer/dryer prep and tons of storage for extended stays or full-time living

  • Automatic leveling, diesel generator, and ample basement pass-through storage

 

Why Buy from Dylan’s RV?

At Dylan’s RV, we specialize in luxury motorhomes and offer a handpicked inventory of premium pre-owned and new RVs. When you shop with us, you’re not just buying an RV—you’re joining a community of passionate RVers who demand the best in performance, quality, and customer experience.

 

Here’s why RV enthusiasts choose Dylan’s RV:

  • Luxury RV experts with years of experience in Super C and diesel motorhomes

  • White-glove customer service from the moment you arrive to long after you drive away

  • Extensive walkthroughs and delivery orientations to ensure you're 100% comfortable with your RV

  • Service-first philosophy, with certified technicians and personalized maintenance plans

  • Fair, competitive pricing and financing options tailored to your needs

  • Family-owned and operated, where every customer is treated like part of the family

 

If you're ready to elevate your travel lifestyle, the Used 2018 Dynamax DX3 37RB is calling your name. Visit Dylan’s RV today and discover the difference of shopping with a dealer who lives and breathes motorhomes.

Your dream coach is here—let the adventures begin.

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