SuperPro SPF4589-23K 23mm Sway Bar Bushing Kit

The SuperPro SPF4589-23K is a 23mm polyurethane sway bar bushing kit engineered to replace worn OEM rubber sway bar bushings with a durable, long-lasting upgrade. Sway bar bushings are critical suspension components that anchor the sway bar to the chassis and enable proper body roll control — when they wear, handling becomes loose and imprecise.

SuperPro's proprietary engineering-grade polyurethane formula delivers superior resistance to wear, oils, extreme temperatures, and road contaminants that quickly degrade OEM rubber bushings. Each bushing in this kit is precision-designed to integrate directly with factory mounting hardware — no generic fitments or universal compromises.

Key Features:

• 23mm bore diameter — designed to fit 23mm sway bars precisely
• Made from SuperPro's proprietary engineering-grade polyurethane for long-lasting performance
• Grease retention technology — internal knurling retains lubrication for smooth, silent operation over the life of the bushing
• OEM-compatible design — integrates with factory hardware and mounting points without modification
• Unaffected by oils, coolants, water, and temperature extremes that degrade rubber bushings
• Backed by SuperPro's Lifetime Warranty with no exclusions for off-road, track, or competition use
• Developed, engineered, and manufactured in Australia with 40+ years of suspension expertise

Upgrading to the SuperPro SPF4589-23K transforms a frequent maintenance item into a one-time repair, restoring sharp steering response and confident body control. Compatible with SuperPro-supplied grease for optimal performance and longevity.