0-0W020 Secondary Air Pump Assembly Black Air Injection Pump Smog Pump FEXON Secondary Air Injection Smog Pump Compatible With 2005-2015 Toyota Tacoma 2.7L L4 Replaces 176000C020 176100C020 Interchange Part Number: 17610-0W020, 176100W020.. The secondary air injection pump (also referred to as a smog pump or SAI pump) is responsible for lowering the number of carbon emissions that come out of the tailpipe of a vehicle Seller offered a partial refund, but itu2019s still priced better than other similar parts. Great condition and packaged well with lubricant over the differential to prevent rust while in the package
