Genuine Freightliner / Detroit Diesel OEM intake air temperature (IAT) sensor (A0111536728) for DD13, DD15, and DD16 engines across EPA07, EPA10, and GHG17 emissions builds. The ECM uses the IAT signal to trim fueling, boost, and EGR for combustion control. Supersedes A0091538928. Signs You Need a New Intake Air Temperature Sensor Check engine light with SPN 1636 (intake manifold temperature) faults Engine derate or reduced power Rough idle or hesitation under acceleration Black smoke under load from over-rich fueling Hard cold starts Erratic intake-air temperature readings on Detroit Diagnostic Link Specifications Manufacturer Freightliner / Detroit Diesel (Genuine OEM) Part Number A0111536728 Part Type Intake Air Temperature Sensor (IAT) Engine Compatibility Detroit Diesel DD13, DD15, DD16 Emissions EPA07, EPA10, GHG14, GHG17 Sensor Length 59.5 mm Connector OE plug-and-play Cross References This part replaces or is equivalent to the following part numbers: Detroit Diesel / DDE: A0111536728, DDE A0111536728 Detroit Diesel (superseded): A0091538928 Applications This IAT sensor fits the following engines: Detroit Diesel DD13 — 12.8L (2008–present) Detroit Diesel DD15 — 14.8L (2008–present) Detroit Diesel DD16 — 15.6L (2011–present) Representative vehicles using these engines: Freightliner Cascadia (2008–present) Freightliner Coronado (2013–2020) Freightliner 122SD with DD13/DD15 Western Star 5700XE (2016–2022) Western Star 4900 / 49X with DD13/DD15/DD16 Verify your engine serial number and emissions certification level before ordering. Sensor configurations vary between EPA07, EPA10, and GHG17 builds.
