The 3Racing SAK-D313/V2/PK aluminium rear bulkhead bearing housing is produced for the Sakura D3 CS SPORT chassis to provide a stiffer mounting point for rear bearings and related drivetrain components. This upgrade helps preserve alignment under lateral loads and supports consistent handling throughout race programmes. The alloy construction reduces wear on critical interfaces and helps maintain predictable rear-end behaviour lap after lap.
Using aluminium for the rear bulkhead improves resistance to deformation, which is useful when refining suspension and toe settings for tight cornering. The 3Racing SAK-D313/V2/PK assists tuners by offering repeatable bearing locations and a rigid platform for fine adjustments to rear geometry.
Engineered to meet the Sakura D3 CS SPORT mounting layout, the 3Racing SAK-D313/V2/PK installs as a direct replacement. It is compatible with common bearing sizes and drivetrain hardware, allowing focused setup work without introducing unpredictable fitment changes.