View 0 Photos View 0 Videos Detroit RT40-4N Rear Axle Housing for a 2016 Freightliner Cascadia 125 Contact for price Detroit RT40-4N Rear housing For Sale 3.58 Ratio - Used - Used - May have some cosmetic blemishes (see photos). Give us a shout by phone, email, or text. We ship everywhere., Core Charge: 0 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)Cascadia 125Will Fit Year(s)2016Part NumberRT40-4NStock NumberFR-0822-43 MLS Number13112485CategoryAxle Housings, Rear Last Updated5/14/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info