Not sure which 1999 Toyota 4Runner Mass Air Flow Sensors are right for you? We have over 316 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Easy install. took about a week for computer to adjust. Remember to reset your battery afterwards aslo" —Nathan W from College Station, TX bought a Jet Power-Flow Mass Air Sensor for a 1999 Toyota 4Runner.