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Service bulletins for the 2014 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.

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

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
IK07000322017-09-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. DPF Snap Accel Test - Quick Test to All vehicles with DPFs
IK04001462017-09-08. Service bulletin. ENGINE. N13, MaxxForce 11, 13 engine Two Cylinder Air Compressor Testing
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.
IK15000802017-09-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, OTHER. Updated Snow Valve Motor and Harness Installation Procedure
IK15000742017-09-08. Service bulletin. ENGINE. Fuel Filters, Winter Additives, and Blending Fuels for Cummins ISX Engines
IK15000572017-09-08. Service bulletin. ENGINE. Davco Fuel Filter Replacements Recommendation for Maxx Force 11 and 13, 2010 Engines
IK12013242017-08-16. Service bulletin. ENGINE. 2630-16 CACOT Under Cooling Faults on N13 WorkStar Plow Truck Application
REC145042017-08-16. Service bulletin. ENGINE. Truck models in this recall will require recalibration of the engine ECM that will enable the CARB engine idle feature.
IK16000682017-08-16. Service bulletin. ENGINE. Engine Cover Appears to be Scuffed
IK15000742017-08-16. Service bulletin. ENGINE. Fuel Filters, Winter Additives, and Blending Fuels; only models equipped with Cummins engine
IK12009402017-08-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, GASOLINE. SCR Fluid Filter Replacement; only with Cummins ISX or Navistar N13 Diesel Exhaust Fluid System
IK08002842017-08-16. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
IK15000802017-08-16. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:ELECTRICAL. Updated Snow Valve Motor and Harness Installation Procedure
IK08005172017-08-16. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Cummins ISB Engine Remote Engine Speed Control with Feature 12XAT
IK08002242017-08-16. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE. Power Distribution Center (PDC) Replacement
IK16002022017-04-19. Service bulletin. STRUCTURE:FRAME AND MEMBERS; ENGINE. COWL TRAY SEAL; ONLY BUILT PRIOR TO 11/11/2013
REC165072017-03-10. Service bulletin. ENGINE. THE ON BOARD DIAGNOSTIC (OBD) DATA STORED FOR PURPOSES OF DEFINING REQUIRED MAINTENANCE OR REPAIR MAY BE INADVERTENTLY LOST WITHOUT NOTICE TO THE OPERATOR.
IK12000292017-02-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. RADIATOR INTERNAL RESTRICTION AND FLUSH PROCEDURE
REC145112016-11-16. Service bulletin. ENGINE. ENGINE PROGRAMMING WITH THE ENGINE SHUTDOWN FEATURE DISABLED MAY HAVE BEEN INSTALLED AT THE TIME OF BUILD EVEN THOUGH THE CUSTOMER ORDERED THE ENGINE SHUTDOWN OPTION ENABLED.
MIN141212016-11-07. Service bulletin. ENGINE; ELECTRICAL SYSTEM. VEHICLES EQUIPPED WITH A BATTERY DISCONNECT SWITCH MIGHT ENCOUNTER AN ISSUE WHERE THE DIESEL EXHAUST FLUID (DEF) FREEZES INSIDE THE PURGE PUMP DUE TO THE AFTERTREATMENT CONTROL MODULE (ACM) NOT RECEIVING BATTERY POWER
IK09000872016-10-31. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. TEMPERATURE RADIATOR DIAGNOSTICS
IK-12013202016-09-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. IK1201320 - EGR SLOW RESPONSE DIAGNOSTICS; 2659 - 10
IK-12012532016-09-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. IK1201253 - EXHAUST MANIFOLD SERVICE PROCEDURES
IK-12011572016-09-12. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. IK1201157 - UPDATE FOR EXCESSIVE LUBRICATION OIL CONSUMPTION
IK-12009152016-09-12. Service bulletin. ENGINE. MISFIRE DIAGNOSTICS IBB; SPN132(X) - FMI 31

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