FERRARI PORTOFINO F164 DKG Transmission 815469
The Ferrari Portofino F164 DKG transmission (815469) is the factory 7-speed dual-clutch gearbox (DCT) used on Ferrari’s front-engine GT convertible platform. It is a rear transaxle unit designed specifically for the Portofino’s F154BE twin-turbo V8.
OEM Overview
- Part number: 815469
- Type: 7-speed dual-clutch transmission (DKG / DCT)
- Application:
- Ferrari Portofino (F164)
- Ferrari Portofino M
- Engine pairing: F154BE 3.9L twin-turbo V8
- Layout: Rear-mounted transaxle gearbox
This unit is catalogued as the complete DCT gearbox assembly for the Portofino platform.
Function
The 815469 gearbox is responsible for:
- Transferring engine torque to the rear wheels
- Delivering ultra-fast dual-clutch gear changes
- Managing traction and stability via ECU integration
- Supporting automatic and manual paddle-shift modes
- Coordinating launch control and driving modes
Engineering Design
Ferrari engineered this transmission for a front-engine GT layout, so it differs from mid-engine systems like the 488:
- Mounted as a rear transaxle for weight balance
- Wet dual-clutch system for torque handling
- Electro-hydraulic gear actuation
- Integrated electronic differential (E-Diff)
It is tuned for:
- Smooth low-speed comfort (urban driving)
- Fast response in Sport and Race modes
- Grand touring refinement with high torque capability
System Integration
The gearbox works with:
- F154BE twin-turbo V8 engine
- Electronic Differential (E-Diff)
- Stability and traction control systems
- Drive mode selector (Manettino)
- Engine ECU (torque coordination during shifts)
It constantly adjusts torque delivery during gear changes to maintain smooth acceleration.
Key Characteristics
- OEM Ferrari 7-speed DCT gearbox
- Used in F164 Portofino platform
- Rear transaxle layout for GT balance
- High torque capacity for twin-turbo V8
- Dual-clutch wet system (fast + smooth shifting)
- Integrated electronic differential system
Portofino vs Mid-engine Ferrari gearboxes
Compared to the 488/F8 DCT (like 807337):
- Portofino (815469): tuned for comfort + GT drivability
- 488/F8: tuned for track performance + sharper shifts
So:
- Same concept (7-speed DCT)
- Different calibration, gearing feel, and behavior profile
Common Replacement Reasons
- Mechatronic/hydraulic control failure
- Clutch wear under torque load
- Gear selection or sensor faults
- E-Diff malfunction
- Full drivetrain replacement after accident or rebuild
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