cus1C7 008 AL
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Upgrade the rear drivetrain cooling capacity of your Toyota GR Corolla or GR Yaris with the Cusco High Capacity Billet Differential Cover. Precision-machined from billet aluminum and finished in Cusco’s signature blue or silver anodizing, this direct OE replacement differential cover is engineered to improve heat management and durability during aggressive street driving, track use, rally, and motorsport applications.
Designed specifically for the AWD drivetrain found in the 2020+ GR Yaris and 2023+ GR Corolla, the Cusco cover increases rear differential fluid capacity from approximately 500cc to 750cc, helping maintain more stable operating temperatures under sustained load. Integrated external cooling fins further enhance heat dissipation to reduce thermal stress on the rear differential during repeated hard driving sessions.
Unlike cosmetic drivetrain accessories, the Cusco high-capacity cover provides a functional performance benefit by improving oil volume and cooling efficiency, helping support drivetrain longevity and consistency in demanding conditions.
