Detroit DEF Header for Freightliner and Western Star 04-31677-000 M24 x 2.00 4L F250 SD - F550

4L F250 SD - F550 SD DIESEL CAB & CHASSIS

GO FROM DIRTY TO CLEAN & DRY

This DOC is a direct replacement for 5289745NX

How to replace Detroit Sensor Bosses

Auto Shutoff for over-temperature conditions

Detroit DEF Header for Freightliner and Western Star 04-31677-000 M24 x 2.00 4L F250 SD - F550This aftermarket DEF Header is a plug and play product, designed specifically for Detroit engines in various Freightliner and Western Star applications. This DuraWRX DEF header delivers OEM equivalent performance at a fraction of dealer pricing. Built to withstand demanding operations and backed by a 2 year, 40,000 mile, 1,200 hour warranty (whichever comes first) this header will get the job done. This unit specifically is designed for Detroit 13 and