Knock Sensor Rear (Flywheel Side) Ferrari F430 612 Maserati 4200 Quattroporte Bosch 187739

[Part Information]
Part Name: Knock Sensor (Firing Sensor) – Rear / Flywheel Side
Manufacturer: Bosch (Genuine OEM)
OEM Part Number: 187739

[Description]
This is a genuine Bosch knock sensor (firing sensor) supplied as OEM to Ferrari and Maserati. It is mounted on the rear side of the engine (flywheel side).

The knock sensor detects abnormal combustion and knocking, allowing the ECU to optimally adjust ignition timing — a critical component for engine protection. Consider replacing if you experience any of the following symptoms:
· Check engine light is on
· Reduced engine performance or sluggish acceleration
· Increased fuel consumption

※ Note: Symptoms can be similar to those of a faulty camshaft position sensor.

View the front-side knock sensor here.

[Important Notes]
· Please feel free to contact us if you have any questions.