GPD 1815003 Ignition Knock Detonation Sensor

The GPD 1815003 is a direct-fit replacement ignition knock sensor (also known as a detonation sensor) designed to restore proper engine management function. GPD (Global Parts Distributors) is a well-established supplier of OE-quality automotive components, engineering each part to meet or exceed original equipment specifications.

The knock sensor is mounted on the engine block, cylinder head, or intake manifold, where it continuously monitors engine vibration. Its core function is to detect abnormal vibrations associated with engine pre-ignition or detonation (knock) and relay that signal to the engine control module (ECM), which then adjusts ignition timing to protect the engine from damage.

Key Features:

• Engineered to OE specifications for precise fit and reliable performance
• Detects engine knock and detonation to enable accurate ignition timing correction by the ECM
• Helps prevent engine damage caused by pre-ignition and abnormal combustion events
• Built from premium materials for long service life
• Direct replacement for a straightforward installation
• Backed by GPD's 12-month warranty against defects in materials and workmanship

Replacing a faulty knock sensor promptly resolves common diagnostic trouble codes related to knock sensor circuit faults and can restore proper engine timing, fuel economy, and overall drivability. The GPD 1815003 is sold as an individual unit.