Is your Ford Focus acting up? Might be time for a new mass airflow sensor. This KIMISS MAF sensor (part number 3L3A-12B579-BA) is a direct replacement for the OEM one, made from high-quality ABS with stable performance and high reliability. It measures air inflow and intake temperature to help your engine run smoothly—better fuel efficiency, smoother idle, and improved acceleration. Designed specifically for the Focus II four-door sedan (2004-2012) and station wagon (2004-2012), it fits perfectly and installs easily (just unplug the old, plug in the new). With minimal pressure loss and a wide measurable range, it’s a solid upgrade or fix for your ride. Comes with one sensor, ready to go. If you’re dealing with rough running, check engine lights, or poor gas mileage, this could be the solution. Questions? Just message us. Get back on the road with confidence!
