Chevrolet Performance Gen V LT Knock Sensor 12623095 Sold individually.

LSXceleration Gen IV LS Knock Sensor 28-23730 Fits Gen 4 engine with knock sensors mounted on side of block. Sold individually.

LSXceleration Gen III LS Knock Sensor 28-89867 Fits Gen 3 engine with knock sensors mounted in valley.

Chevrolet Performance Gen III LS Knock Sensor 12589867 Fits Gen 3 engine with knock sensors mounted in valley.