Roadmaster 1139-101 Stabilizer Bar
Roadmaster 1139-101 Stabilizer Bar
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Roadmaster 1139-101
Driving your RV should be an enjoyable experience. And it can be. Adding a set of Roadmaster anti-sway bars to your suspension has an immediate effect on stability and cornering control. Adding a set of custom anti-sway bars to your suspension system results in an immediate improvement in handling stability and tracking, especially on the curves. For many, this is an empowering experience. What was beyond your control just yesterday, is suddenly within it - cornering with confidence, quicker maneuvering and a remarkably level ride over uneven terrain - all without launching the dishes out of the cupboard. Even after eight or 10 hours at the wheel you arrive fresh, instead of fatigued, which means you can start enjoying the Grand Canyon, the Grand Tetons or the grandkids right away. RSS anti-sway bars have a thicker diameter than stock bars often, a quarter to three-eighths of an inch more. Each incremental increase in diameter has an exponential effect on performance - on average, torsional roll stiffness is increased by 30 percent with every 1/8 inch increase in diameter. In plain English - RSS anti-sway bars offer up to 90 percent more resistance to sway.
Features & Benefits
- Anti-sway bars are made of 4140 chromoly steel
- Stronger and more durable than the standard spring steel
- Anti-sway bars have polyurethane bushings, which, unlike the rubber used in stock bushings
- Impervious to gas, oil and ozone corrosion, is more resistant to abrasion, and doesn’t buckle under heavier load weights
- Anti-sway bar is baked-on powder-coated finish
- Charged particles of pigment are baked into the surface of the sway bar
- Limited 1 year warranty
Specifications
| Weight | 17 lb |
| Dimensions | 44.1 x 17 x 3.8 in |
| Brand | Roadmaster |
| Manufacturer Part Number | 1139-101 |
| UPC | 758306324824 |
Recommended Items
Commonly ordered accessories for this product:
| Item | Brand | Manufacturer Part Number | Description |
|---|---|---|---|
| Gloves | Perform Tool | W89006 | Gloves |
| Gloves | Perform Tool | W89007 | Gloves |
| Gloves | Perform Tool | W89005 | Gloves |
Frequently Asked Questions
What are the key construction details?
Roadmaster features anti-sway bars are made of 4140 chromoly steel. See Features & Benefits and Specifications for the full list.
How much does this product weigh?
This item weighs approximately 17 lb.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

