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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: Engine are shown. Show all

Bulletins, newest first
IK12010982018-07-16. Service bulletin. ENGINE AND ENGINE COOLING. LT EGR Core Removal and Insertion on MaxxForce 11, 13, and N13 engines
REC165092018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. Engine software On Board Diagnostic (OBD) issues will be corrected which will aid in engine malfunction identification and proper diagnosis.
IK08005462018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. HVAC fault 2609-19 with 4th Gen BCM; Only models equipped with 4th generation BCM
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.
MIN171132018-04-02. Service bulletin. SUSPENSION:MULTIPLE AXLE:TORQUE ARM; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. The retaining nut securing the turbocharger oil supply line may not be tightened to its specified torque.
IK09001212018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. HVAC line rub; only models equipped with Cummins ISB series engines and stationary grille feature code 009HBM
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
IK12013242018-02-21. Service bulletin. ENGINE AND ENGINE COOLING. 2630-16 CACOT Under Cooling Faults; only on N13 WorkStar Plow Truck Application
IK12012482018-02-21. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Cooling System Flush Procedure
IK12012992018-02-21. Service bulletin. ENGINE. Engine Oil Capacities
IK12010092018-02-21. Service bulletin. ENGINE. Winter Front Usage
IK08005172017-12-14. Service bulletin. ENGINE; VEHICLE SPEED CONTROL. Cummins Engine Remote Engine Speed Control; only with feature code12XAT or 12XBM
IK19001582017-12-14. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dash Cluster Lamp Operation, Functions and Regeneration Instructions, With International engines
IK07000792017-12-14. Service bulletin. ENGINE AND ENGINE COOLING. SCR Vehicles Setting 3363-16 (FC1713) due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
IK19002282017-12-14. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. 2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
AFC149022017-09-08. Service bulletin. ENGINE. A new calibration has been made available for emergency vehicles that prevents the possibility of engine derate or eventual shutdown due to the potential need for aftertreatment regeneration during emergency service.
IK19002122017-09-08. Service bulletin. ENGINE AND ENGINE COOLING. Front Blower Motor Runs Breifly At Initial Power Up
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
MIN151102017-08-16. Service bulletin. ENGINE. Fan Shroud ring seal may be damaged by the fan during vehicle articulation

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