Set of (7) 10.9 Class (metric equivalent to Grade 8) hardened black flange bolts to attach the water pump to the engine block and (4) 10.9 Class hardened black flange bolts to attach the water pump pulley to the water pump on 2007-2011 Wrangler JK and Unlimited JKU. Replaces Mopar 6101451 and 6502058. The OEM bolts were only 9.8 Class and are notorious for snapping off in the block. If you are planning to replace you water pump or gasket plan on having a set of these for the job. Our 10.9 Class bolts are stronger than OEM so next time you won't be dealing with broken bolts. Sold by a small business in the US.