Prothane 1-1109-BL Rear Sway Bar Bushing Kit 5/8in Black Polyurethane

The Prothane 1-1109-BL is a rear stabilizer bar bushing kit designed as a direct performance upgrade over the factory rubber bushings. Featuring premium black polyurethane construction, these bushings deliver improved stiffness and long-term durability, helping to reduce body roll and maintain consistent sway bar effectiveness over time.

Factory rubber bushings are prone to warping, cracking, and losing their grip on the sway bar — allowing the bar to shift and reducing its ability to keep tires planted through corners. Prothane's polyurethane formulation resists road grime, oils, and weathering that cause rubber to deteriorate, maintaining a secure grip on the 5/8 in. (0.625 in.) diameter rear stabilizer bar.

Key Features:

• Premium-grade polyurethane construction — significantly more durable than OEM rubber
• Grooved bore design holds Prothane Super Grease for quiet, squeak-free operation
• Black color includes graphite additive to further reduce friction and noise
• Precision fabrication ensures a proper, rattle-free fit
• Resists breakdown from road salt, oils, grime, and weathering
• Improves handling and reduces body roll without replacing the sway bar
• Backed by Prothane's Lifetime Warranty

Sold as a kit. Verify your sway bar diameter prior to ordering, as different vehicle packages may use different bar sizes. Prothane Super Grease (sold separately) is recommended for proper installation and long-term quiet operation.