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Service bulletins for the 2015 Western Star 4700

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.

620 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
323-152018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. 323-15 Symptom Diagnostics ? Noise
306-152018-03-05. Service bulletin. ENGINE; FUEL SYSTEM, DIESEL. 306-15 SPN 3246 (ACM)(EPA10;GHG14)
321-152018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 321-15 SPN 4364 (ACM) (GHG14)
320-152018-03-05. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 320-15 SPN 4374 (ACM) (GHG14)
301-152018-03-05. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 301-15 SPN 3251 (ACM) (EPA10) and (ACM) (GHG14), 3936 (ACM)
302-152018-03-05. Service bulletin. ENGINE; EQUIPMENT. 302-15 Crankshaft Oil Seals
15-0092018-03-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. 15-009 New Detroit Standard Diagnostic Times
sbw49162018-03-05. Service bulletin. ENGINE. sbw4916 2013 OBD/GHG14, 6-Gallon DEF Header Suction Line
14TL22018-02-12. Service bulletin. ENGINE. 14TL2 DD Platform Engine Stand Adapter W060589023100
14TS182018-02-12. Service bulletin. ENGINE. 14TS18 GHG14 DD Engine EGR System Fault Code
713-142018-02-12. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. 713-14 Symptom Diagnostics - Combustion Gas in Coolant
715-142018-02-12. Service bulletin. ENGINE AND ENGINE COOLING. 715-14 Symptom Diagnostics - Coolant Los
714-142018-02-12. Service bulletin. ENGINE. 714-14 Symptom Diagnostics - Low Engine Compression
712-142018-02-12. Service bulletin. ENGINE AND ENGINE COOLING. 712-14 Engine Coolant Temperature
16TS82018-02-12. Service bulletin. ENGINE AND ENGINE COOLING. 16TS8 DD13 Cylinder Head and Cylinder Head Gasket Change
0304-16 SPN 27912018-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. 0304-16 SPN 2791 (MCM) ( GHG14) and SPN 2791 (MCM) ( GHG17)
0303-162018-02-12. Service bulletin. ENGINE AND ENGINE COOLING. Hydrocarbon Doser Coolant Lines
sbw49102018-01-16. Service bulletin. ENGINE. sbw4910 Gentech DEF Coolant-Flow Solenoid, Testing and Replacement
15-028A2018-01-05. Service bulletin. ENGINE AND ENGINE COOLING. 15-028 New Detroit Coolant Line SRTs
901-152018-01-05. Service bulletin. ENGINE. 901-15 Oil Breather Vent
0228-142018-01-05. Service bulletin. ENGINE. 0228-14 Engine Oil Leaks - Oil Dye Method
0229-142018-01-05. Service bulletin. ENGINE. 0229-14 Symptom Based Diagnostics - Oil Separator
49-142018-01-05. Service bulletin. ENGINE AND ENGINE COOLING. 49-14 - DEF Tank Coolant Valve O-Ring Kit
14TS202017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 14TS20 GHG14 Auto-Elevate Feature
804-142017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. 804-14 FMI 16, 18 Intake Manifold Pressure Too high and low (Restricted Mode)

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