View 3 Photos View 0 Videos Cummins Main Bearing Kit for 6ISBE/ISB6.7/QSB6.7/ISDE Engines, Part # 4955521 $100 USD Cummins Main Bearing Kit *Fits Cummins 6ISBE, ISB6.7, QSB6.7, ISDE Engines Part# 4955521, Serial#: N/A ConditionNewPart Number4955521Stock Number976735 MLS Number14261593CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info