Serpentine Belt Tensioner Pulley 6 Rib V8 4.8L 5.3L 6.0L 6.2L OEM GM 12609719

Manufacturer: General Motors

Part #  12580162 

Other Part # 12554027, 12609719

Removed from a vehicle which had performance modifications added. As a result, it no longer needed the OEM Factory parts. OEM, not an aftermarket replacement.

Please compare to your original to ensure this is the proper part you are needing.