This kit includes one OC91 oil filter plus seal rings for the oil drain plug, transmission and final drive. This kit is a convenient way to go when servicing your BMW.
Oil filters from MAHLE reliably keep debris out of the lubrication circuit and thereby maintain both oil quality and the performance and efficiency of the engine. MAHLE oil filters feature a heavy duty, deep-drawn sheet steel housing that's powder-coated for quicker release of the filter.
OC91D comes with the sealing kit (crush washers for the oil drain plug, transmission plugs and final drive plugs)
Advantages of MAHLE oil filters