2003+ Common Rail
12Mm Gorilla Girdle W/ Arp Xl Main Studs
This kit includes:
1 Gorilla Girdle, 14 top spacers, (large hole)
12 bottom spacers (small hole)
1 rear main spacer bar,
2 rear main stud nuts (12 point),
and 12 main stud nuts (Nylock).
Before you start, READ AND UNDERSTAND THE INSTRUCTIONS.
(12mm ARP 2000, 125 ft lbs)
NOTE: On certain 6.7L Cummins engines that come factory with a windage tray instead of a factory girdle you will be required to get the early style longer factory girdle bolts as well as an early style oil pickup tube. We are currently working on a fix for this to prevent any further install issues.
Cummins oil pickup tube part number: 3949692
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