PFR5-4027BLK, BMW F82, F83 4 Series M4 Rear Diff Front Mounting Bush Insert, PFR5-4027 is an insert fits into and fills voids in each of the original bushes in rear diff front mounting bracket OE number: 33172284774. Each insert includes support washers and is a fast way to to increase the stability of the rear diff on bushes that are not worn or perished. For a replacement bush please use PFR5-4025., 4 stuk(s) benodigd per auto, 4 stuk(s) in verpakking, prijs per set van 4 stuk(s)