Service bulletins for the 2019 Western Star 4900
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.
292 on file from NHTSA, as of 2026-10-19.
By type
By component
| SPN 3563 / FMI 2 | 2019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. HDEP GHG17 engines are not equipped with turbo wastegates. Steps in this troubleshooting involving wastegates were removed. |
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| 19TS-6 | 2019-08-08. 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. |
| 19TL-9 | 2019-08-08. Service bulletin. WHEELS; SUSPENSION; EQUIPMENT. DTNA Special Tools Group has approved the use of Haweka Axis4000 aftermarket alignment system for use on DTNA products at DTNA service locations. The Axis4000 system uses the reference points required by DTNA for precise, accurate, and repeatable measurements. Axis4000 is a sophisticated, user-friendly system that utilizes computer based camera-radio technology and references the center line of the frame for measuring and providing alignment results to DTNA specifications. |
| 18SP730Rev | 2019-08-08. 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. |
| 0611-19 | 2019-08-08. 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 |
| 18SP729Rev | 2019-08-08. Service bulletin. EQUIPMENT; 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. |
| 18SP728Rev | 2019-08-08. Service bulletin. EQUIPMENT; 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. |
| 18SP727Rev | 2019-08-08. 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. |
| 18SP726Rev | 2019-08-08. 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. |
| 19-008WI | 2019-08-08. Service bulletin. EQUIPMENT. Warranty Information Letter sent to customers regarding new refrigerator supplier for returning parts. |
| DOC-1034452 | 2019-08-08. Service bulletin. EQUIPMENT. Training Solution created by DTNA to provide guidance to customers when searching for service information for components and systems not owned by Daimler Trucks North America (DTNA). |
| 18SP725Rev | 2019-08-07. 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. |
| sb54313 | 2019-08-06. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin provided to customers regarding installation of a new MCM 21-pin jumper harness. |
| FL812 Western St | 2019-07-08. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Western Star Odometers Recall Bulletin |
| FL766 | 2019-04-08. Service bulletin. ELECTRICAL SYSTEM. Dealer Bulletin- FL766 Western Star Power Cable Studs |
| FL773 Lowmax Bra | 2019-04-08. Service bulletin. SERVICE BRAKES. Recall Bulletin FL773 Lowmax Brake Hoses |
| sbw0015 | 2019-04-08. Service bulletin. SUSPENSION. Service Bulletin Vibration and Harsh Ride Troubleshooting |
| sbw0002 | 2019-04-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Technical Publications Ordering |
| sbw5464 | 2019-04-08. Service bulletin. FUEL SYSTEM, DIESEL. Fuel Level Sending Unit Retrofit |
| FL766 | 2019-04-01. Service bulletin. ELECTRICAL SYSTEM. Dealer Bulletin- FL766 Western Star Power Cable Studs |
| FL773 Lowmax Bra | 2019-04-01. Service bulletin. SERVICE BRAKES, AIR:DISC. Recall Bulletin FL773 Lowmax Brake Hoses |
| DOC-1034171 | 2019-04-01. Service bulletin. SUSPENSION. SS 1034171 Airliner Rear Suspension Chassis Lean Troubleshooting |
| 18TL18 | 2019-03-18. Service bulletin. SERVICE BRAKES. 30mm Air Disc Brake Caliper Bolt Torque Adapter DSNCHA018005 |
| cal54001 | 2019-03-18. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Customer Advisory Letter- Battery Power Cable Routing |
| FL794 | 2019-03-18. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER. FL794 Brake Caliper Mounting Bolts Dealer Bulletin |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.