Curb Hoppers0My CartARP (Automotive Racing Products)Valve Cover Fastener - Bolt - 1/4-20 in Thread - 12 Point Head - Stainless - Natural - for 6.6 L GM Duramax - KitListing ID: 917118UPC: 672036043087Manufacturer Part Number: 400-7533Reference Part Number(s): ARP400-7533Out Of StockBrand NewCopyright (C) 2019-2023 Initial Holdings LLC dba Curb Hoppers. All Rights Reserved.