Supply the fresh air your emissions system relies on at cold start with the Dorman - OE Solutions Secondary Air Injection Pump, part number 306-012, a direct replacement built to install and operate like the original pump. It fits several vehicles, among them the 2006-2009 Chevrolet Trailblazer, 2006-2009 GMC Envoy and 2006 Chevrolet Trailblazer EXT. See the Buyer's Guide tab for the full list and engine details.
A secondary air injection pump pushes outside air into the exhaust stream, mainly right after a cold start. This helps the catalytic converter reach operating temperature sooner and lowers cold-start emissions. If the original pump is leaking or has stopped working because of an internal failure, this Dorman unit is designed to take its place.
- Direct replacement: designed to match the original pump's fit and function on the listed applications.
- Replacement for a failed pump: intended for an original unit that is leaking or has failed internally.
- Durable construction: made from quality materials for dependable performance and durability.
- Trustworthy quality: backed by Dorman's team of product experts in the United States and more than a century of automotive experience.
Signs the pump may need replacing include a check engine light with secondary air system codes, a loud whine or grinding from the pump, or a pump that no longer runs. Valves, hoses, relays and wiring can cause similar faults, so diagnose the system before you replace the pump.
Interchange: AP12 · AP13 · 322402M · 10373306 · AIP2 · AIP3 · 0001403785 · GM0315282
This part cross-references / interchanges with the following part numbers:
AP12, AP13, 322402M, 10373306, AIP2, AIP3, 0001403785, GM0315282
