This Mighty Spark Plug is a top-of-the-line replacement for your vehicle's ignition system. Made with high-quality platinum material, it ensures optimal performance and longevity. The WRF34P model is designed to fit most cars and trucks, with interchange part numbers including 41-824, APP2544, AP2544, SP-504, and AWSF34C. The manufacturer part number for this spark plug is WRF34P. It is perfect for those who want to upgrade their ignition system and improve their vehicle's performance. Whether you're replacing a damaged or worn-out spark plug, or just want to switch from a standard spark plug to a high-quality one, this Mighty Spark Plug is a great choice.