# Sportsmobile Promaster 133S

133S is a class b floor plan by Promaster (Sportsmobile).

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 17 ft 9 in |
| Sleeps | 2 |
| Slide-outs | 0 |

## Model years

2026. Year-specific specs: `https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/133s?year={year}`

## Overview

Built on Ram's practical ProMaster platform, this compact 18-footer excels at city driving with its tight turning radius and easy maneuverability. Owners consistently praise the drivetrain and fuel economy, making it ideal for urban adventures and tight camping spots. While some report highway wandering in crosswinds, the trade-off is a van that feels more like driving a regular vehicle than piloting a house.

## Inventory

No units currently for sale. Search similar inventory: https://rvenvy.com/inventory

Floor plan diagram: https://images.rvenvy.com/b5b1a41c938f5e600e2b29b52225a02b1c1aede1ba80a8e6b6866ec9a1db3c75/1024.webp

Canonical page: https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/133s