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Service bulletins for the 2018 Western Star 4800

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.

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

By type

By component

Bulletins, newest first
sbw540652019-04-08. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. GHG17 Heavy Duty Engine Platform Vehicle Dash Oil Pressure Gauge
sbw540652019-04-08. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. GHG17 Heavy Duty Engine Platform Vehicle Dash Oil Pressure Gauge
sbw00022019-04-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Technical Publications Ordering
18TS4Rev DD2019-04-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. 18TS4Rev DD Heavy Duty Platform Accessory Drive Belt
sbw00152019-04-01. Service bulletin. SUSPENSION. Service Bulletin Vibration and Harsh Ride Troubleshooting
sbw540652019-04-01. Service bulletin. ENGINE. GHG17 Heavy Duty Engine Platform Vehicle Dash Oil Pressure Gauge
sbw540652019-04-01. Service bulletin. ENGINE. GHG17 Heavy Duty Engine Platform Vehicle Dash Oil Pressure Gauge
sbw00022019-04-01. Service bulletin. EQUIPMENT. Technical Publications Ordering
sbw54642019-04-01. Service bulletin. FUEL/PROPULSION SYSTEM. Fuel Level Sending Unit Retrofit
sbw000172019-04-01. Service bulletin. EQUIPMENT. Reminder: Paper Service Bulletin Mailings Are Discontinued
DOC-10341712019-04-01. Service bulletin. SUSPENSION. SS 1034171 Airliner Rear Suspension Chassis Lean Troubleshooting
sbw54642019-03-25. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT. Fuel Level Sending Unit Retrofit
sbw00042019-03-18. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Service Bulletin-sbw0004 Western Star Courtesy Engineering Policy
FL7942019-03-18. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER. FL794 Brake Caliper Mounting Bolts Dealer Bulletin
ICI19-003 FL7942019-03-11. Service bulletin. SERVICE BRAKES, AIR:DISC:CALIPER. FL794 - Revised Bulletin Brake Caliper Mounting Bolts
FL794 REV2019-03-11. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER. FL794 Recall Campaign- Brake Caliper Mounting Bolts
sbw000172019-03-11. Service bulletin. EQUIPMENT. Service Bulletin Paper Copy Mailings Are Discontinued
DOC-10332152019-02-19. Service bulletin. VISIBILITY:WINDSHIELD. DOC-1033215 Windshield Aesthetic Inside Trim not Secured Correctly or Loose
sbw0015 Vibratio2018-12-10. Service bulletin. SUSPENSION. Vibration and Harsh ride Troubleshooting
18-032-NoDefectF2018-12-10. Service bulletin. ELECTRICAL SYSTEM. Warranty Bulletin for charge back exemtions
HDEP PLV Return2018-12-10. Service bulletin. FUEL SYSTEM, GASOLINE. Service information Bulletin -HDEP PLV Return Line Tool DSN470E17006
Emission Recall2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Emission Recall D18R5 GHG17 DD Platform Model Years 2016-2018 Software Reprogramming For California Onboard Diagnostics
D18M2 GHG17 Detr2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING. Field Service Campaign D18M2 GHG17 Detroit? DD13® Software Reprogramming and Emission Label Replacement for Motor Coach Industries, Inc. (MCI®)
Aftertreamtent F2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. Service Information Bulletin for Aftertreamtent Failure Guide
DD13, DD15, DD162018-12-10. Service bulletin. ELECTRICAL SYSTEM. DD13, DD15, DD16 Check Engine Light Flashing or Blinking

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