J.C. Whitney SET-RT28390001 Rear Suspension Knuckle Set RH and LH Silver Aluminum OEM Replacement

The J.C. Whitney SET-RT28390001 is an OEM-replacement rear suspension knuckle set designed to restore proper suspension geometry and wheel alignment on the Tesla Model S (2012–2016). This set includes both the right-hand (RH) and left-hand (LH) rear knuckles, constructed from lightweight aluminum with a silver finish — matching original factory materials and specifications.

The rear suspension knuckle is a critical structural component that connects the wheel hub and bearing assembly to the surrounding suspension linkages, including the upper and lower control arms, toe link, stabilizer bar link, and ABS wheel speed sensor mounting point. Worn or damaged knuckles can compromise wheel alignment, tire wear, and overall handling stability.

Key Features:

• Includes both RH and LH rear knuckles — complete set for full rear axle replacement
• Aluminum construction with silver finish — matches OEM weight and corrosion resistance
• Direct OEM-replacement fit — no modifications required for installation
• Replaces OEM part numbers: 600702300B (RH) and 600702400B (LH)
• Backed by J.C. Whitney's 1-year, unlimited-mileage warranty

A wheel alignment check is recommended following installation to ensure proper suspension geometry. Suspension fasteners should be torqued to specification with the vehicle at ride height on a level surface.