1 0 2010 Meritor-Rockwell RR/RS21145 Rear Differential for a Meritor/Rockwell RR/RS21145 $500 USD Quality used meritor carrier differential (RS21145), backed by our standard warranty. Ratio 5.29:1 OEM # 0043339, RS21145 Please Note: The part sent may not exactly match the one... Quantity2ConditionUsedRear End5.29 ratioFits To Make(s)MERITOR/ROCKWELLFits To Model(s)RR/RS21145Stock Number03R-43339-11140 MLS Number13321305CategoryDifferentials, Rear Last Updated8/19/2025 LocationBig Lake, MN, US Sold ByQuality Bus and Truck Parts (844) 580-___ SHOWNUMBERCall Seller Email Seller Save More Info