GPD 1815033 Ignition Knock Detonation Sensor

The GPD 1815033 is a direct-fit ignition knock sensor (also known as a detonation sensor) engineered to meet or exceed original equipment (OE) fit, form, and function. GPD — Global Parts Distributors — manufactures this sensor as a reliable, professional-grade replacement for a worn or failed factory unit.

How It Works:

The knock sensor is mounted to the engine block, cylinder head, or intake manifold. It continuously monitors engine vibrations to detect abnormal combustion events such as pre-ignition (knock or ping). When detonation is detected, the sensor sends a signal to the engine control module (ECM), which adjusts ignition timing to eliminate the knock condition — protecting the engine and optimizing performance and fuel efficiency.

Key Features:

• OE-matched design — engineered to meet or exceed original equipment specifications for precise fit and reliable performance
• 100% tested — each unit is tested for durability and proper function before leaving the factory
• Direct-fit replacement — installs in place of the original sensor with no modifications required
• Premium materials — constructed to deliver long-lasting, dependable service
• Protects engine integrity — proper knock sensor operation helps prevent detonation-related damage to pistons, rods, valves, and spark plugs
• 1-year warranty — backed by GPD's standard manufacturer warranty against defects in material and workmanship

The GPD 1815033 knock sensor restores accurate ignition timing control and helps maintain peak engine efficiency. It is a professional-quality solution for resolving knock sensor trouble codes (such as P0325–P0332) and drivability concerns caused by a faulty detonation sensor.