McLaren 650S gearbox 11G4001CP complete
complete gearbox for a McLaren 650S with the part number 11G4001CP typically involves sourcing a high-value, recycled or refurbished unit. This is the 7-speed Seamless Shift Gearbox (SSG), a dual-clutch transmission (DCT) manufactured by Graziano specifically for McLaren’s Super Series.
Technical Breakdown: 11G4001CP
The 650S gearbox is an evolution of the 12C unit, featuring refined hardware and software for faster shift times and better thermal management.
| Feature | Details |
| Manufacturer | Graziano (OEM) |
| Type | 7-Speed Dual-Clutch (SSG) |
| Compatibility | McLaren 650S Coupe & Spider (P11 Platform) |
| Key Modes | Normal, Sport, Track (features “Inertia Push”) |
| Condition Note | A “complete” unit should include the internal sensors and mechanical actuators. |
Buying & Installation Intelligence
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The “Complete” Definition: When purchasing part 11G4001CP, verify if the Transmission Control Unit (TCU) is included. Many used units are sold “bare,” meaning you must swap your old electronics onto the new mechanical housing.
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Coding & Adaptation: This gearbox is not a simple mechanical swap. You will need the McLaren Diagnostic System (MDS) to perform a “Clutch Kiss Point” adaptation. Without this software calibration, the car may not engage gears or could suffer immediate clutch damage.














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