4 0 Detroit DD16 Engine Part for a 2015 Western Star 4900FA Contact for price 2015 Western Star Horn Assembly For Sale, Used. Phone, email, or text for information. We ship everywhere., Serial#: 473908S0285050, Casting#: D473908 ConditionUsedFits To Make(s)Western StarFits To Model(s)4900FAWill Fit Year(s)2015Stock NumberWS-0868-40 MLS Number13824564CategoryEngine Miscellaneous Parts Last Updated9/20/2025 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info