View 4 Photos View 0 Videos Meritor-Rockwell Front Differential for a 2012 Western Star 4900 SA Recently Updated Contact for price (Used) 2012 Western Star 4900 SA, COMPLETE FRONT DIFFERENTIAL GEARS ONLY- Part Number: 33063A7051G3.91, Serial Number: FOR01693784, Make: Meritor/Rockwell, Model: RP23160NCN1806 391, Ratio:... ConditionUsedRear End3.91 ratioFits To Make(s)Western StarFits To Model(s)4900 SAWill Fit Year(s)2012Part Number33063A7051G3.91Stock NumberP-75837 MLS Number12725537CategoryDifferentials, Front Last Updated3/11/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info