Do you push your RWD or xDrive G8x M-Car to the limit on the track or the street? The MMX High-Capacity Baffled Differential Sump is meticulously engineered to keep your drivetrain performing at its absolute peak. Built for driving enthusiasts who demand unrelenting reliability, this premium upgrade ensures your differential stays cool, lubricated, and efficient—lap after grueling lap.
Maximum Oil Capacity & Cooling Efficiency
Heat kills differentials. Our high-capacity sump combats this by increasing your differential's fluid capacity by a massive 2 litres (2.10 quarts). Furthermore, temperature management is optimized via precision-machined internal and external cooling fins that vastly increase the surface area for heat dissipation. Combined with an integrated internal windage tray that directs constant lubrication to the gears while reducing component drag, this sump minimizes drivetrain power loss and prevents high-stress overheating.
Billet Construction & Seamless Integration
Machined from a solid block of 6061-T6 billet aluminium, the MMX sump offers the perfect balance of lightweight construction and bulletproof strength. It mounts exactly like the OE unit to existing factory points, providing a seamless, modification-free upgrade. Looking for even more cooling? We’ve included an additional -8AN port and an M22 to -8AN fitting adapter so you can easily route an external oil cooler.
Key Features & Performance Benefits
Massive Fluid Increase: Adds up to 2 litres of extra oil capacity for superior thermal mass and lubrication.
Integrated Windage Tray: Ensures constant oil supply to the pinion and gears while reducing internal fluid drag.
Advanced Heat Dissipation: Internal and external cooling fins significantly lower operating temperatures.
External Cooler Ready: Features a built-in port and includes an adapter for easy installation of an external cooling loop.
Ultimate Modularity: Designed to integrate perfectly with the MMX Dual Differential Mount (MMR55-1606). Run the sump alone, the mount alone, or combine both for the ultimate locked-down drivetrain.
What's Included in the Box?
1x Billet CNC-Machined Baffled Sump
1x Billet CNC-Machined Windage Tray
1x Magnetic Drain Plug + Seal
1x Fill Plug + Seal
1x M22 to -8AN Adaptor (for external oil cooler setups)
