17600-0C020 New secondary Air Pump Compatible with 2005-2015 Toyota Tacoma 2.7L L4, Replaces 176000C020 176100C020

Everything fits well… including the wire harness connection, which I was surprised about, as a previous purchase a few years ago (different brand) didn’t, and I had to wire nut the connection.Mind you… this is specifically on my 2006 4cyl 2.7l rwd tacoma. Can’t speak for any other models or years.I re-used my existing 3 rubber grommets as they were in great shape.Make sure you clear the code with an OBD2 scanner. Some people claim that it resets after a couple of successful starts… I cannot attest to this as I always clear it with a code reader.Do not forget that while this is the most common failure (bad air pump), there are other things involved in this system… fuse, relay, control module, pressure switch and a solenoid valve.Also remember that the secondary air injection system is only involved on cold starts for 15 to 20 seconds… so if you are starting even semi-warm… it’s not going to even try to come on.With that being said… the best way to check the pump itself is to jump it directly to battery power and verify if it runs or not.If you have a situation where the unit fits but the wiring harness does not… make sure you have the polarity correct. This is a DC motor, and reverse polarity will cause the motor to spin backwards.