Brand: ATI Performance Products Manufacturer's Part Number: ATI973134 Part Type: Timing Cover Seals Product Line: ATI Timing Cover Seals Automotive Fittings Part Number: ATI-973134 UPC: 800157059988 Timing Cover Seal Material: Nitrile rubber Quantity: Sold individually. Description: Crankshaft hubs with increased wall thicknesses require a special seal. ATI timing cover seals will do the trick. These nitrile rubber seals will provide a leak-free seal. If you're removing your cover for maintenance or have seals that are deteriorating and need to be replaced, choose ATI timing cover seals to do the job.