Prothane 6-1156-BL Rear Sway Bar Bushing Kit 21mm Polyurethane Black

The Prothane 6-1156-BL is a rear sway bar bushing kit designed as a direct replacement for the stock rubber stabilizer bar bushings on 2000–2004 Ford Focus applications. The kit includes 21mm polyurethane bushings in black that deliver a significant upgrade over the soft, compliance-focused OEM rubber components.

Key Features:

• Polyurethane construction — firmer than OEM rubber for improved handling response and reduced body roll
• Grooved bore design — inner grooves retain Prothane Super Grease to ensure quiet, squeak-free operation over the life of the bushing
• 21mm inner diameter — precision-sized for a secure, rattle-free fit on the factory and aftermarket 21mm rear stabilizer bar
• Black color — corrosion-resistant finish blends cleanly into the undercarriage
• Direct OEM replacement — bolt-in installation with no cutting or modification required
• Prothane Super Grease included — compatible lubricant packed with the kit for proper installation and long-term performance

Prothane polyurethane bushings resist compression set, oils, and road grime far better than stock rubber, maintaining consistent performance over time. This kit is an ideal upgrade for drivers seeking sharper steering feedback and more predictable cornering behavior without sacrificing daily drivability.