FERRARI GTC4 LUSSO Front Transmission PTU 324841 Power take Off

the part number 324841 refers to the Power Take-Off (PTU) unit for the Ferrari GTC4Lusso (specifically the V12 model). This is the “second gearbox” located at the front of the engine that enables Ferrari’s unique 4RM-S four-wheel-drive system.

The PTU is a sophisticated, lightweight transmission that takes power directly from the crankshaft and distributes it to the front wheels via two small independent wet clutches.

1. Technical Identification

• Part Number: 324841 (This is the most current iteration, often superseding older versions found in the FF).

• Location: Mounted at the front of the 6.5L V12 engine.

• Gears: It has only two forward speeds (plus reverse), which cover the first four gears of the main rear DCT. At 5th gear and above, the PTU decouples, and the car becomes purely rear-wheel drive.

• Cooling: It is integrated into the engine’s oil and cooling circuits.

2. 2026 Market Pricing (Estimated USD)

The PTU is notoriously expensive because it is a low-volume, high-precision component. By 2026, many owners opt for professional rebuilds because a new unit from Ferrari is a five-figure expense.

3. Common 2026 Failure Points

If you are searching for part 324841, it is likely due to the “4WD System Failure” warning. Common issues include:

• Internal Seal Failure: The most common problem. Oil from the engine or hydraulic fluid leaks past internal seals and contaminates the clutches.

• Sensor Malfunction: Internal pressure and temperature sensors fail, causing the PTU to fail to engage or “shudder” during low-speed maneuvers.

• Solenoid Failure: The hydraulic solenoids that control the two front clutches can stick or fail electronically.

4. Installation & Calibration

• Engine Access: Replacing the PTU is a major job. While it is at the front of the car, access is tight. It typically requires removing the front bumper, radiators, and cooling fans.

• DEIS Calibration: After installation, the unit must be bled and calibrated using the Ferrari DEIS tool. The “clutch kiss point” for the front wheels must be synchronized with the rear DCT.

• Fluid Change: In 2026, specialists recommend changing the PTU oil every 15,000 miles (far sooner than the official manual suggests) to prevent the internal sensors from being damaged by metallic micro-debris.