Prothane 14-1116-BL 350z Rear Sway Bar Bushing Kit 21mm 2003+

The Prothane 14-1116-BL is a rear sway bar bushing kit designed for the Nissan 350Z (2003 and later), fitting a 21mm diameter stabilizer bar. This kit replaces the factory rubber bushings with precision-molded polyurethane bushings that deliver firmer, more consistent performance over the life of the vehicle.

OEM rubber bushings compress and deflect under load, allowing the stabilizer bar to flex and reducing the effectiveness of the anti-roll system. Prothane's polyurethane construction resists this deflection, restoring and enhancing the sway bar's ability to control body roll during cornering.

Key Features:

• Grooved bore design retains Prothane Super Grease for quiet, squeak-free operation
• Polyurethane construction — significantly firmer than OEM rubber for improved handling response
• 21mm inner diameter — fits stock and compatible aftermarket rear sway bars
• Black (BL) color for a clean, finished appearance under the vehicle
• Resists oil, ozone, and weathering for long-term durability
• Direct OEM replacement — no cutting or modification required

This kit is an ideal upgrade for 350Z owners looking to tighten up handling and reduce understeer or oversteer without replacing the entire sway bar. Includes all necessary bushings for a complete rear installation.