Limited Life Time Warranty The new Crank Shaft oil seal installation kit from Sir Tools is made for Honda and Acura technicians providing the easy task of harmonic balancer oil seal installation. The press cup is made from high quality anodized aluminum, which will not damage the oil seal or the engine. The new kit comes with: Correct sizes and pitch threaded rod, which is secured into the crank bolt hole. Press nut and washer, giving the technician an even and straight pressing force. A limited life time warranty. Is covered by a signature series.