Prothane 6-1218-BL Front Track Bar Bushing Kit Black Polyurethane 21.5mm

The Prothane 6-1218-BL is a black polyurethane front track bar bushing kit designed as a high-performance upgrade over worn or soft OEM rubber bushings. Engineered for 4WD full-size Ford Super Duty trucks, this kit fits models using a 21.5mm eyelet bolt and is built to restore and improve front suspension control.

The track arm (also known as a panhard rod) and its bushings play a critical role in your suspension system — keeping the axle properly aligned laterally, minimizing body roll, and reducing unwanted front-end wander or sway. Over time, factory rubber bushings degrade and allow excessive movement that can contribute to handling issues. Prothane's polyurethane construction resists pressure, heat, and corrosion far better than OEM rubber, delivering a longer-lasting, more responsive bushing.

Key Features:

• Premium polyurethane construction — outperforms and outlasts factory rubber bushings
• 21.5mm eyelet fitment — precision-fabricated for a direct, accurate fit
• Black color with graphite additive — helps reduce squeaking during operation
• Includes pre-lube/super grease — for quiet, long-lasting installation
• Provides necessary rigidity — controls unwanted track arm motion on straight-axle vehicles
• Lifetime warranty — Prothane backs this kit against defects in materials and workmanship for the life of the original purchaser's vehicle

The black formulation includes a small amount of graphite blended into the polyurethane, which can help minimize noise. For best results, apply the included grease during installation. A direct-fit replacement that delivers improved chassis feedback and durability over the OEM rubber alternative.