Fitment:For all LS gen III harnesses and gen III knock sensors ;Fits engine RPO codes by LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33
Material:Made of heavy-duty billet aluminum
Replacement:Replace Part Number is 551216-KN30
Installation:Relocates LS1 Gen III knock sensors from valley pan to side skirt of the engine block;Allows LS Gen III knock sensors to be retained and relocated from the valley pan area to the bottom edge of the engine block.
Package includes: 2 pcs x knock sensor brackets,2 pcs x mounting hardwares