If your Ford Crown Victoria, Lincoln Town Car, or Mercury Grand Marquis is running rough or throwing a check engine light, a faulty MAF sensor might be the culprit. This HEDORANCE replacement is built to OE specs for a direct fit — no modifications needed. Compatible with 2003-2004 Crown Victoria (4.6L V8), 2003-2011 Town Car (4.6L V8), and 2003-2004 & 2007 Grand Marquis (4.6L V8). Replaces part numbers AFH7034, MAF0028, AFLS173RM, 3W7Z12B579AB, and others. Made from quality materials to ensure accurate airflow readings and restore engine performance. Easy to install if you're handy, or have your mechanic pop it in. Always double-check your vehicle year, make, model, and engine size before ordering. Comes with a 2-year unlimited replacement promise. If you have any issues, customer support is responsive. A reliable, affordable fix to get your classic sedan running smoothly again.