Cusco 692 008 AL High-Capacity Rear Diff Cover for Subaru R180

Vehicle Fitment

• Subaru Impreza WRX / STI - R180 differential carrier housing
• Compatible with GC8, GDB/GGB, GRB/GVB, VAB (R180 end)

Features

• Billet aluminum construction for high strength and low weight
• Increased oil capacity - approx. +400 cc over factory
• Cooling fins / heat sinks to enhance heat dissipation
• Pre-tapped M16 x P1.5 holes to allow external oil cooler
• Center baffle design to handle high G-force conditions
• Anodized finish (blue) for corrosion resistance
• Bolt-on installation using OEM mounting points
• Ideal for aggressive driving, motorsports, or high-stress use

Specifications

• Part Number: 692 008 AL
• Material: Billet aluminum
• Finish: Blue anodized
• Oil Capacity: ~1.2-1.3 L (~+400 cc) :contentReference[oaicite:0]{index=0}
• External Cooler Port: M16 x P1.5 threads
• Mounting: Rear differential ("R180" housing)

Included Components

• 1x Cusco Rear Differential Cover (692 008 AL)
• 4x Plug screws / caps

Product Description

The Cusco 692 008 AL is a high-capacity rear differential cover made for Subaru applications using the R180 differential carrier. Crafted from billet aluminum, this cover not only strengthens the differential housing but also significantly increases oil capacity (by approximately 400 cc), promoting better lubrication and thermal management under stressful driving conditions.

Designed with integrated heat-sink fins, the cover effectively sheds heat during aggressive driving or racing, helping to maintain optimal gear oil temperatures. For further cooling, the unit offers pre-tapped M16 x P1.5 ports, allowing for the easy addition of an external oil cooler.

Finished in a durable blue anodized coating, the cover fits directly onto the differential using factory mounting points, making installation straightforward. This is an ideal upgrade for performance-minded Subaru owners who demand long-term durability and reliability from their rear differential, especially in high-stress or track environments.