New OEM Cummins stud part number 3056155 is used as a mounting stud for the turbo and on elbows in the exhaust system. These studs are 3/8-16 x 3/8-24 thread. The item is depicted as #2 in the above diagram. Please note that the list is for a pack of 2 studs.

Compatibility Includes:

NH/NT 855, NT495, NT743, NTA855 N106, K19, KTA19 G CMEICS K123, KTA19GC, KTA19GC CM558, QSK19 CM2150 MCRS, QSK19 CM2350 K105, QSK19 CM500, QSK19 CM850 MCRS, QSK19G, G50, K50, K50-DPM, QSK50 CM2150 K107, QSK50 CM2150 MCRS, QSK50 CM2350 K108, QSK50 CM2350 K130, QSK50 CM850 MCRS, QSK50 DF CM850/CM2150 MCRS