PRODUCT NOTES
Replaces old part number DS-3903938.
This is a Cylinder Head Hexagon Screw for Cummins 6B5.9, 4B3.9, 6BTA5.9-G3, G5.9-C and B5.9-C177 engines. This item is a new replacement part shipped with a 12-month warranty.
Call us at 888.687.0539 if you have any questions about this item.
As always, your satisfaction is guaranteed!