WenmarOpen by Wenmar Pro

Service bulletins for the 2015 International Workstar

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

254 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
IK07000972019-06-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. NEW Ultrasonic DEF Head Unit available; Only models equipped with SCR Aftertreatment.
IK07000972019-05-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. NEW Ultrasonic DEF Head Unit; Only vehicles Equipped with SCR
IK07000972019-04-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. NEW Ultrasonic DEF Head Unit; only models equipped with SCR Aftertreatment
IK07000972018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. NEW Ultrasonic DEF Tank Sending Unit; only models with SCR Aftertreatment system.
IK07000792018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SCR Vehicles Setting 3363-16 (FC1713) due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
IK07000322017-09-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. DPF Snap Accel Test - Quick Test to All vehicles with DPFs
REC155032017-09-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Emergency vehicle calibration will reduce the engine exhaust soot levels that enter the aftertreatment system and prevent the possibility of engine derate or eventual shutdown due to lack of performing exhaust system regeneration as a result of extensive idling typical of emergency vehicles.
IK-12012532016-09-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. IK1201253 - EXHAUST MANIFOLD SERVICE PROCEDURES

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.