# Dynamax Corp DX3 37RB

> Bath and a half, rear bath

DX3 37RB is a class c floor plan by Dynamax Corp.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 40 ft 9 in |
| Sleeps | 3 |
| Slide-outs | 3 |
| GVWR | 33,000 lbs |
| MSRP | $448,701 |

## Model years

2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017. Year-specific specs: `https://rvenvy.com/class-c-motorhomes/dynamax-corp/dx3/37rb?year={year}`

## Overview

The bath-and-a-half layout is a real differentiator here. Having a dedicated rear bath off the bedroom means the main living area never has to double as a hallway to the toilet in the morning. Owners consistently praise how livable this floorplan feels day-to-day, and many highlight that it drives "smooth as silk" even when towing. Which makes sense given the Cummins L9 turbo diesel (360hp, 1,150 lb-ft of torque), Allison six-speed automatic, and Airliner rear air suspension underneath. The Freightliner M2 chassis also brings genuine towing muscle at up to 20,000 lbs, a Jacobs engine brake, and locking differential, so mountain passes and loaded tow vehicles are well within its comfort zone. Dynamax builds the coach on an all-aluminum, composite-fiberglass structure with no exterior wood, and the brand has a solid reputation for responsiveness when warranty issues do come up.

## Floor plan tags

bath and a half, rear bedroom, rear bath

## Inventory

11 units currently for sale priced $135,199 to $378,618: https://rvenvy.com/class-c-motorhomes/dynamax-corp/dx3/37rb/inventory

Floor plan diagram: https://images.rvenvy.com/2500f547e83005d8588090566cfbb1e0d04b5929592da46e8e75b70e030a2ae8/1024.webp

Canonical page: https://rvenvy.com/class-c-motorhomes/dynamax-corp/dx3/37rb