Cusco 521 410 A Pillowball Upper Mounts Camber Adjustable Strut Top Mount

The Cusco 521 410 A Pillowball Upper Mounts replace your factory rubber upper strut mounts with a precision pillow ball bearing design, eliminating flex and compliance loss under hard acceleration, braking, and cornering. By removing the deflection inherent in OEM rubber mounts, these upper mounts deliver sharper, more immediate steering response and a significant improvement in high-speed stability.

Key Features:

• Pillow ball bearing construction eliminates rubber bushing flex for direct, precise steering feel
• Available in center lock and camber adjustable types — the adjustable type allows fine-tuning of front camber alignment at the upper mount
• 6mm thick plate machined from 2017S duralumin (aerospace-grade aluminum alloy) for high strength and reduced unsprung weight
• Improved stability and control over bumps and high-speed corners, keeping the vehicle on its intended line
• Enhanced stability and safety during corner-entry braking
• Direct OEM replacement fitment for straightforward installation

Cusco pillow ball upper mounts are a popular upgrade for performance street and track builds. The camber adjustable type is especially useful when running lowering springs or coilovers, where additional negative camber correction or dialing-in is required. Constructed to Cusco's exacting Japanese manufacturing standards, the 521 410 A is a proven solution for drivers demanding more from their suspension system.