Genuine Detroit Diesel A6805402017 OEM exhaust gas temperature (EGT) sensor for the diesel oxidation catalyst (DOC) circuit on DD13 and DD15 aftertreatment systems. Probe length 338 mm with M12 x 1.25 thread and 17 mm hex, paired with the matching wiring harness on Freightliner and Western Star EPA10/GHG14 trucks. Specifications Manufacturer Detroit Diesel (Daimler Truck) — Genuine OEM Part Number A6805402017 (DDE A6805402017) Part Type Exhaust Gas Temperature (EGT) Sensor — DOC position Probe Length 338 mm Thread M12 x 1.25 Hex 17 mm Engine Compatibility Detroit DD13, DD15 Cross References This EGT sensor replaces or is equivalent to the following part numbers: Detroit Diesel: A6805402017, DDE A6805402017, DDE A6805402517 Bostech: BTS003029 (DD13/DD15 EGT family) Also known as: 700054AT Applications This EGT sensor fits the following Detroit Diesel engines: Detroit Diesel DD13 12.8L (EPA10 / GHG14 / GHG17 on-highway) Detroit Diesel DD15 14.8L (EPA10 / GHG14 / GHG17 on-highway) Representative vehicles using these engines: Freightliner Cascadia / Cascadia Evolution (2010–present) Freightliner Coronado, Argosy Western Star 4900 / 5700XE / 4700 with Detroit DD13 or DD15 (2011–present) Verify EGT-1, EGT-2, or EGT-3 position called for by your fault code before ordering — the DD13/DD15 aftertreatment uses multiple EGT sensors with different harness lengths and connector keying.