Lamborghini Aventador Actuator Left Right 470501398C 470501397C

the part numbers 470501398C (Right) and 470501397C (Left) identify the Rear Wheel Steering Actuators for the Lamborghini Aventador series.

These components are central to the LRS (Lamborghini Rear-wheel Steering) system introduced with the Aventador S and subsequently featured on the SVJ and Ultimae.

1. Technical Identification

• Part Numbers: * 470501397C (Left Side)

  • 470501398C (Right Side)

• Application: Aventador S (LP740-4), Aventador SVJ (LP770-4), and Aventador Ultimae (LP780-4).

• System: These are electromechanical actuators that adjust the rear toe angle. At low speeds, they turn the rear wheels opposite to the fronts (virtual wheelbase reduction); at high speeds, they turn in parallel (increased stability).

2. 2026 Market Pricing (Estimated USD)

These are highly specialized components. Because the Aventador production has ended and these parts are specific to the flagship V12 models, prices have remained high.

3. The “C” Revision Significance

The “C” suffix is the most recent and robust iteration of this part.

• Early Issues: Earlier “A” and “B” versions were known to occasionally suffer from moisture ingress or software synchronization errors.

• Update: The “C” revision features improved internal sealing and refined electronic feedback sensors to better communicate with the LDVA 2.0 (Lamborghini Dinamica Veicolo Attiva) control unit.

4. Critical Installation Requirements

Replacing these actuators is not a simple “bolt-on” job:

• Electronic Parameterization: After physical installation, the actuators must be “introduced” to the car’s ECU using the LaRA or ODIS diagnostic tool. The system requires a zero-point calibration to ensure the rear wheels are perfectly centered.

• Mechanical Alignment: A precision 4-wheel laser alignment is mandatory. Even a fraction of a degree of deviation in the rear steering can cause “crabbing” at high speeds or trigger the ESC (Electronic Stability Control) warning light.

• Battery Warning: Always disconnect the battery before unplugging the high-draw electrical connectors to these actuators to avoid spiking the sensitive LDVA control module.