Cusco 125 420 A Pillowball Upper Mount Set Camber Adjustable Duralumin

The Cusco Pillowball Upper Mounts (125 420 A) are a high-performance replacement for factory rubber upper strut mounts, engineered to eliminate unwanted flex and deflection under hard acceleration, braking, and cornering. By replacing compliant OEM bushings with a precision pillowball (spherical bearing) design, these mounts deliver direct, unfiltered feedback and dramatically improved suspension response.

Key Features:

• Pillowball (spherical bearing) construction — eliminates bushing deflection for precise, immediate steering response
• Available in center lock and camber adjustable types — camber adjustable version allows on-car static camber tuning via the upper mount
• 6mm thick plate construction — fabricated from high-strength 2017S duralumin (aerospace-grade aluminum alloy) for rigidity without excessive weight
• Improved stability over bumps and high-speed corners — keeps the suspension geometry consistent and predictable on track and on the street
• Enhanced corner braking stability — reduces chassis movement and improves safety under trail braking conditions
• Sold as a set

Cusco pillowball upper mounts are a popular choice for sport and track-focused builds where steering precision and suspension geometry accuracy take priority. The duralumin plate construction ensures long-term durability under repeated high-load driving conditions. Compatible with Cusco coilover systems and many OEM strut assemblies.