View 0 Photos View 0 Videos 2000 Meritor RP20145 Front Differential for a Western Star 4900FA $1,270 USD (USED) Meritor RP20145 Ratio: VERIFY Side Gear Splines: 41 W/ Locker: NO Cast#: 3200-W-1661 ConditionUsedFits To Make(s)Western StarFits To Model(s)4900FAStock Number25837704 MLS Number13793492CategoryDifferentials, Front Last Updated9/4/2025 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info