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Service bulletins for the 2018 Western Star 6900

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.

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

By type

By component

Bulletins, newest first
0205-17 SPN 52102018-06-18. Service bulletin. ELECTRICAL SYSTEM. 0205-17 SPN 521052 (MCM) (GHG17)
18SP7332018-06-18. Service bulletin. ENGINE. 18SP733 GHG17 Medium Duty DD8 Oil Filter Kit
sbw54642018-06-18. Service bulletin. FUEL SYSTEM, DIESEL. Fuel Level Sending Unit Retrofit
sbw54302018-06-18. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. sbw5430 Disconnecting or Connecting Daytime Running Lights
sbw49102018-06-18. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. sbw4910 Gentech DEF Coolant-Flow Solenoid, Testing and Replacement
0405-182018-06-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 0405-18 Symptom Diagnostics - Range Up or Down Shift Issue
0404-182018-06-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. 0404-18 GHG17 DD8 - Aftertreatment Systems - Diesel Particulate Filter End Cap
0402-182018-06-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ELECTRICAL SYSTEM. 0402-18 SPN 625 (CPC) (GHG14)
0401-182018-06-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 0401-18 SPN 1231 (MCM) (EPA10 GHG14)
ICI18-0142018-06-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ICI18-014 Owner Notice ? Kidde Fire Extinguisher Recall
sbw54642018-06-18. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY. sbw5464 Fuel Level Sending Unit Retrofit
sbw54392018-06-18. Service bulletin. ELECTRICAL SYSTEM. sbw5439 RX Module Fault Codes
sbw42062018-06-18. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM; SERVICE BRAKES, AIR:DRUM. sbw4206 Brake Shimmy?Meritor® SteeLite X30? Brake Drum With Excessive Runout
fsbw420092018-06-18. Service bulletin. ENGINE AND ENGINE COOLING. fsbw42009 Diagnostic de fuite d'air
FL7562018-06-18. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS. FL756 Brake Light Pressure Switches
sbw54552018-06-11. Service bulletin. EQUIPMENT. sbw5455 Virtual Technician Retrofit
sbw20192018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. sbw2019 Kysor Fan Clutch Rocking Runout Inspection
sbw31092018-06-11. Service bulletin. EQUIPMENT. sbw3109 Huck-Spin 2 Changeover
sbw49112018-06-11. Service bulletin. ELECTRICAL SYSTEM. sbw4911 DEF Gauge Reading Incorrectly
1102-172018-06-11. Service bulletin. ELECTRICAL SYSTEM. SPN 157 (MCM) (GHG17)
1101-172018-06-11. Service bulletin. EQUIPMENT. Symptom Diagnostics - Noisy One-Box Aftertreatment
1105-172018-06-11. Service bulletin. FUEL SYSTEM, DIESEL. EPA10, GHG14 and GHG17 Diesel Particulate Filters
1110-172018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. Exhaust and Exhaust Gas Recirculation
sbw54012018-06-11. Service bulletin. EXTERIOR LIGHTING. sbw5401 Turn Signal and Brake Override Circuit
sbw83252018-06-11. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. sbw8325 Side Window Defroster and Cooling Improvement Retrofit

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