Description:

[Vehicle Fitment]: Compatible with Buick Rainier 2006-2007 L6 4.2L Compatible with Chevrolet Trailblazer 2006-2009 L6 4.2L Trailblazer EXT 2006 L6 4.2L Compatible with GMC Envoy 2006-2009 L6 4.2L Envoy XL 2006 L6 4.2L 9-7x 2006-2009 L6 4.2L . [Reference Number]: 911-150, 911150, 12619110. [Terminal Quantity]: 5 Pins. [Direct Replacement]: The Secondary Air Injection Check Valve fits and performs like original equipment for a trouble-free installation..