5 0 Meritor-Rockwell RR23-160 Rear Axle Housing for a 2012 Western Star 4900 SA Contact for price (Used) 2012 Western Star 4900 SA, COMPLETE REAR DIFFERENTIAL HOUSING ONLY- Part Number: 33063A7051G3.91, Serial Number: FOR01693785, Make: Meritor/Rockwell, Model: RR23160NCN2890 391, Ratio:... ConditionUsedFits To Make(s)Western StarFits To Model(s)4900 SAWill Fit Year(s)2012Part Number33063A7051G3.91Stock NumberP-75841 MLS Number12725541CategoryAxle Housings, Rear Last Updated12/5/2025 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info