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Adding our kit to your stock fuel system reduces drive load on the stock CP3 pump
Socket Size: 7/16 12pt
We took the pair on a 900-mile loop through city traffic
and threads to ensure even torque across all fasteners
Designed as an OE replacement piston
2004-2007 Cummins 5.9L Main Stud Kit (247-5403) 1989 - 1998 Dodge Engine Components Adding our kit to your2004 2007 Cummins 5. 9L Main Stud Kit (247 5403) ARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don't "twist" into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life. Finally, the there are factors of easier engine assembly and