Roadmaster 1139-146 is a 1-1/2-inch rear auxiliary anti-sway bar kit for selected Ford F-53/F-550 V10 Class A motorhome chassis. The manufacturer's Ford application chart identifies the 2005–2020 chassis family, restricted to coaches under 33 feet long and with an 18,000 lb GVWR; it excludes Thor Outlaw configurations. Unlike a factory-replacement anti-sway bar, this auxiliary kit installs alongside the original rear sway bar, which remains in place. The chassis weight, coach length and mounting details determine compatibility—do not assume every model in the year list below fits. Confirm the exact chassis through Roadmaster FitMaster before purchasing.
- Rear auxiliary bar for qualifying V10 Ford F-53/F-550 Class A chassis; OEM rear sway bar remains installed. Confirm 18K GVWR and coach length under 33 ft.
Key Features
- Hands-On Design and Manufacturing.
- The Most Stringent Testing in the Industry.
- Limited 1 Year Warranty.
Specifications
| Material |
Chromoly Steel |
| Finish |
Cadmium Plated |
| With Links |
Yes |
| Diameter |
1-1/2 in |
Vehicle Applications
- 2006 Ford F-53 Motorhome Chassis
- 2007 Ford F-53 Motorhome Chassis
- 2008 Ford F-53 Motorhome Chassis
- 2009 Ford F-53 Motorhome Chassis
- 2011 Ford F-53 Motorhome Chassis
- 2012 Ford F-53 Motorhome Chassis
- 2013 Ford F-53 Motorhome Chassis
- 2014 Ford F-53 Motorhome Chassis
- 2015 Ford F-53 Motorhome Chassis
- 2016 Ford F-53 Motorhome Chassis
- 2017 Ford F-53 Motorhome Chassis
- 2018 Ford F-53 Motorhome Chassis
- 2019 Ford F-53 Motorhome Chassis
Package Contents & Exclusions
| With Mounting Hardware |
Yes |
Part Identification
| Brand |
Roadmaster |
| Manufacturer Part Number |
1139-146 |
Installation Notes
| Estimated Install Time (Hours) |
1.5 |
