Skip to product information
1 of 2

Roadmaster

Roadmaster Stabilizer Bar Mount Bushing – 1-1/2 Inch Rear Bar Diameter, Polyurethane, Greaseable | 4139-125

Roadmaster Stabilizer Bar Mount Bushing – 1-1/2 Inch Rear Bar Diameter, Polyurethane, Greaseable | 4139-125

Regular price $238.90 USD
MSRP $258.29 USD Our price $238.90 USD
Sold out
Shipping calculated at checkout.

Why buy from RV Towing Pros

  • Genuine new partsBrand-new Roadmaster, never used or refurbished
  • Fit GuaranteeSend us your vehicle and we’ll confirm fit before you order. How it works
  • Ships in 5–8 business daysIn-stock parts; express available at checkout
  • Secure checkout & 30-day returnsPay with card, Shop Pay, PayPal and more

Questions? Message us — we answer within 1 business day.

Shipping & Returns

In-stock parts: standard shipping 5-8 business days, express available at checkout. Out-of-stock and special-order parts: 3-5 weeks. Returns accepted within 30 days of delivery (20% restocking fee; buyer pays return shipping unless we made an error).

Fit Guarantee: if you sent us your vehicle details before ordering and we confirmed fit, but the part doesn't fit, we cover return shipping and waive the restocking fee.

Questions? Message us — we answer within 1 business day.

View full details

Product Description

The Roadmaster 4139-125 is a replacement polyurethane mount bushing kit for 1-1/2-inch Roadmaster rear anti-sway bars. Mount bushings hold the bar to the vehicle and let it pivot; when they wear, the bar can clunk and lose effectiveness. Polyurethane is stiffer than rubber, which helps the bar work more effectively, and it resists gas, oil, ozone and abrasion.

The bushings are greaseable, and the kit includes the saddle bracket, sleeve spacer, grommet, hardware and Aqua Lube grease.

Compatibility

  • 1-1/2-inch diameter Roadmaster rear anti-sway bars

Bushing kits vary by anti-sway bar. Contact us with your anti-sway bar part number before ordering.

Specifications

  • Manufacturer: Roadmaster
  • Part number: 4139-125
  • Bar diameter: 1-1/2 inches
  • Position: Rear
  • Material: Polyurethane
  • Color: Black
  • Greaseable: Yes
  • Warranty: Roadmaster lists a limited 1-year warranty

What's Included

  • Polyurethane bushings
  • Saddle bracket
  • Sleeve spacer and grommet
  • Bolts and washers
  • Aqua Lube grease

Helpful Links

Shipping & Availability

In stock and ready to ship.

Our Fit Guarantee Tell us your vehicle before you order and we’ll confirm the part fits. If we confirmed it and it doesn’t fit, we’ll cover return shipping and waive the restocking fee. Check my fit

Own this part? Be the first to review it.

Your experience helps other RVers choose with confidence. Tell us what you tow, how installation went and how it’s held up on the road.

✓ Takes about 2 minutes✓ Photos of your rig are a big help