Features: Enhances your vehicle's performances and ensure driving safety with our high quality Knock Sensor 30530 PPL A01. Crafted from metal materials, this ignition knock detonation sensor offers precise detection of engine knocks, ensuring long lasting reliability and engine function. For automotive repair technicians and DIY car enthusiasts, especially those vehicle owners, looking to maintain or improve their engine's performances. Perfect for use in engine maintenance and upkeep, this sensor ensures your vehicle runs smoothly, providing peace during every drive. With easy installation and compatibility with multiple part numbers, this sensor is a must have component for anyone committed to maintaining their vehicle's condition. Specifications: Material: Metal Size: About. 4.6x2.9cm/1.81x1.14in Part Number: 30530-PPL-A01 30530-PNA-003 Package Includes: 1pc Knock Sensor note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.