Made Of High Quality Black Rubber. Replaces OE # MF0012P-FG Sold as singles.. Made in the USA *This Is An OEM Replacement Part / Not Aftermarket * Fitment * Fits Peterbilt 359 1967 thru 1987 * Fits Peterbilt 377 1988 thru 2000 * Fits Peterbilt 378 1988 thru 2007 * Fits Peterbilt 379 1987 thru 2007 * Fits Peterbilt 387 1999 thru 2010 * Fits Peterbilt 388 2008 thru 2014 * Fits Peterbilt 389 2008 thru 2015