# Grand Design Momentum M-Class 351MS

Momentum M-Class 351MS is a toy hauler floor plan by Grand Design.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 40 ft 6 in |
| Sleeps | 6 |
| Slide-outs | 3 |
| Dry weight | 14,700 lbs |
| GVWR | 19,000 lbs |
| MSRP | $149,371 |

## Model years

2026, 2025, 2024, 2023, 2022, 2021. Year-specific specs: `https://rvenvy.com/toy-haulers/grand-design/momentum-m-class/351ms?year={year}`

## Overview

A versatile garage-to-living layout anchors the Grand Design Momentum M-Class 351MS, giving you dedicated toy-hauler space while preserving a comfortable interior for longer stays. The kitchen adds a professional-grade stainless steel cooktop, Smart Sink, extended countertops, and barstools, while the full bath and bedroom offer a more residential feel. Outside, three LED-lit awnings, including a second patio awning, expand the living space, and the 6-point hydraulic leveling system, MORryde suspension, and ABS-equipped heavy-duty axles support confident setup and travel.

## Floor plan tags

toy hauler

## Inventory

2 units currently for sale priced $59,995 to $69,995: https://rvenvy.com/toy-haulers/grand-design/momentum-m-class/351ms/inventory

Floor plan diagram: https://images.rvenvy.com/6842da7cff80ba1b729e0ffa0ede01fd6b5e5641f98a4639e6caea24ec86b95c/1024.webp

Canonical page: https://rvenvy.com/toy-haulers/grand-design/momentum-m-class/351ms