Prothane 18-1131-BL Rear Sway Bar Bushing Kit 16mm Black Polyurethane

The Prothane 18-1131-BL is a rear sway bar bushing kit designed to replace the factory rubber stabilizer bar bushings with firm, long-lasting black polyurethane bushings sized for a 16mm rear sway bar. Upgrading to polyurethane delivers a noticeably tighter grip on the bar, reducing body roll and improving cornering response — an effect comparable to installing a larger-diameter sway bar, but at a fraction of the cost.

Unlike OEM rubber bushings that crack, warp, and lose their grip over time due to heat, road grime, and vehicle fluids, Prothane polyurethane resists degradation from UV exposure, oils, and road salts to maintain consistent performance for the life of the vehicle. Each bushing features a grooved bore engineered to retain Prothane's Super Grease, ensuring quiet, squeak-free operation during daily driving and performance use alike.

Key Features:

• Premium-grade polyurethane construction — firmer and more durable than OEM rubber
• Precisely sized for a 16mm rear stabilizer bar
• Black color with graphite content for added noise reduction
• Grooved bore retains supplied Super Grease for quiet, long-lasting operation
• Resists degradation from road grime, oils, UV rays, and weather
• Maintains sway bar grip to reduce body roll and improve handling response
• Made in the USA
• Backed by Prothane's Lifetime Warranty against defects in materials and workmanship

Includes Prothane Super Grease for proper lubrication during installation. For optimal performance and to prevent squeaking, thoroughly grease all bushing contact surfaces at the time of installation.