COMPATIBLE MODELS: Knock sensor relocation bracket kit fit for 1997-2007 GM Gen III LS V8 Engines LS1, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and L33 models. Replace Part Number : 551216-KN30. Knock sensor relocation bracket kit compatible with any Gen III harness and original equipment knock sensors