Getting a check engine light for your secondary air injection system? This replacement pump is a direct fit for a bunch of GM vehicles with the 2.4L engine. Specifically, it fits 2011-2012 Buick LaCrosse and Regal, plus 2012-2015 Chevy Equinox and GMC Terrain models. Before you order, double-check your vehicle's exact year and engine – it’s crucial. This pump injects fresh air into the exhaust during cold starts to help reduce emissions and burn off unburned fuel. It's made from corrosion-resistant metal to handle high temps and harsh engine bay conditions. Replaces OEM part numbers 12634644, 215-704, and 306-053 (note: this is just the pump, bracket and hoses not included unless stated). Installation is pretty standard if you're handy, but if you're not sure, having a pro do it might save time. We offer a 30-day return policy if there are any issues – just reach out. Fix that emission code and get your engine running efficiently again without paying dealership prices.
