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Service bulletins for the 2014 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.

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

By type

By component

Only bulletins with component: Fuel system are shown. Show all

Bulletins, newest first
SS10330942021-06-09. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:MANIFOLD PRESSURE (MAP) SENSOR. Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
TS10330142020-07-31. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING. Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines. Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics need to be performed to find the root cause.
SB47-0152019-09-28. Service bulletin. FUEL SYSTEM, GASOLINE. Service Bulletin for Equiflo Fuel System Breather Tube Inspection
0609-192019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL. Service Information Bulletin for Symptom Diagnostics - Fluid in the Aftertreatment - Diesel Fuel Contamination.
19TS-62019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. The modified parked regeneration strategy has been standard on GHG17 units since the start of GHG17 production and was added to EPA10 and GHG14 units with a software update. The modified regeneration utilizes an improved strategy to clean the DOC inlet face and reduce downtime due to DOC face plugging.
18SP730Rev2019-08-08. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. This service kit includes all necessary parts to replace the high pressure fuel rail feed lines, mounting bracket, P-clips and mounting hardware in the event one of these parts are loosened, removed or missing from the engine.
0611-192019-08-08. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. Service Information Bulletin was released, to add new procedures to address diagnostics near the high pressure pump
18SP726Rev2019-08-08. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT. This service kit includes all necessary parts to replace the high pressure fuel rail feed lines, mounting bracket, P-clips and mounting hardware in the event one of these parts are loosened, removed or missing from the engine.
18SP725Rev2019-08-07. Service bulletin. ENGINE; EQUIPMENT; FUEL SYSTEM, DIESEL. This service kit includes all necessary parts to replace the high pressure fuel rail feed lines, mounting bracket, P-clips and mounting hardware in the event one of these parts are loosened, removed or missing from the engine.
0607-172019-04-08. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. SPN 96 (MCM) (GHG17)
0603-172019-04-08. Service bulletin. FUEL/PROPULSION SYSTEM. Fuel System Integrity Check Routine - Two-Filter Fuel System
0608-172019-04-08. Service bulletin. FUEL/PROPULSION SYSTEM. Diagnostic tests - Two Filter System - FSIC Leak Test
sbw54642019-04-08. Service bulletin. FUEL SYSTEM, DIESEL. Fuel Level Sending Unit Retrofit
0607-172019-04-01. Service bulletin. FUEL SYSTEM, DIESEL. SPN 96 (MCM) (GHG17)
0603-172019-04-01. Service bulletin. FUEL SYSTEM, DIESEL. Fuel System Integrity Check Routine - Two-Filter Fuel System
0608-172019-04-01. Service bulletin. FUEL SYSTEM, DIESEL. Diagnostic tests - Two Filter System - FSIC Leak Test
sbw54642019-04-01. Service bulletin. FUEL/PROPULSION SYSTEM. Fuel Level Sending Unit Retrofit
0603-172019-03-25. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL. Fuel System Integrity Check Routine - Two-Filter Fuel System
sbw54642019-03-25. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT. Fuel Level Sending Unit Retrofit
1212-182019-03-18. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. Service Information Bulletin- Exhaust Gas Recirculation Crossover Pipe
1213-182019-03-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; FUEL SYSTEM, DIESEL. Service Information Bulletin
530-132018-06-25. Service bulletin. FUEL SYSTEM, GASOLINE. 530-13 Low Pressure Fuel Pump ? Two-Filter Fuel System
529-132018-06-25. Service bulletin. FUEL SYSTEM, GASOLINE. 529-13 Operation of the Fuel System - Two-Filter Fuel System
518-132018-06-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT; FUEL SYSTEM, DIESEL. 518-13 SPN 4334-FMI 4 - GHG14
13TS172018-06-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. 13TS17 EPA10-GHG14 Diesel Exhaust Fluid (DEF) in Fuel System-Diesel Fuel in DEF System Contamination

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