Not sure which 1999 Mercury Mountaineer Air Filters are right for you? We have over 14810 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:
"Fabulous. Significant increase in horsepower and a 4mpg increase for a-230 Kompressor engine (Mercedes)" —Elliott F from Venice, FL bought a K&N Air Filters for a 1999 Mercury Mountaineer.