Ferrari 488 Gtb gearbox complete 807337

In 2026, the part number 807337 refers to the Complete 7-speed Dual-Clutch Transmission (DCT) Assembly for the Ferrari 488 GTB (and is often listed as the primary service replacement for the F8 Tributo and 488 Spider as well).

This unit is a refined version of the F142-series gearbox, featuring updated internal sensor harnesses and improved hydraulic control compared to the earlier 458 models.

1. Technical Identification

• Part Number: 807337 (Current production/exchange assembly).

• Type: 7-Speed Dual-Clutch (DCT) Rear-mounted Transaxle.

• Engineering: This gearbox manages the 661 HP and 561 lb-ft of torque from the 3.9L twin-turbo V8. It includes Variable Torque Management software, which electronically adjusts torque delivery in lower gears to ensure smooth, linear acceleration.

• Integrated E-Diff 3: The electronic differential is built into this assembly, sharing the gearbox’s high-pressure hydraulic circuit.

2. 2026 Market Pricing (Estimated USD)

By 2026, the 488 GTB has become a major target for secondary market support. While the factory price remains high, there are more remanufacturing options available than ever before.

3. Common 2026 Failure Points

If you are replacing the entire 807337 unit, you are likely experiencing one of these issues:

• Speed Sensor / SAP Sensor Failure: Even with the “improved” 488 harness, heat cycles can eventually cause the internal speed sensor to fail, leading to the loss of odd or even gear sets.

• Internal Hydraulic Leak: A leak in the clutch actuator seals can cause the car to drop into Neutral or refuse to engage Reverse.

• Parking Pawl Malfunction: A mechanical failure of the electronic parking lock, which is housed internally.

4. Installation & Calibration

• DEIS Calibration: You cannot simply bolt this in. The car requires a “Self-Learning” and “PIS” (Point of Initial Slippage) calibration via the Ferrari DEIS tool to synchronize the new clutches with the engine’s ECU.

• Gearbox Mounts: While the gearbox is out, it is highly recommended to replace the rear gearbox mounts. The high torque of the 488’s turbo V8 tends to compress these rubber mounts over time.

• Fluid Specs: Use only Shell Spirax S5 DCT1. In 2026, it is widely advised to change the fluid every 20,000 miles to help keep the internal electronics clean and cool.