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Service bulletin 0504-18

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10151486
Published by NHTSA2018-12-10
Manufacturer's number0504-18
Manufacturer's date2018-05-04
NHTSA componentFUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS; FUEL SYSTEM, GASOLINE

NHTSA's summary

0504-18 Fuel System - Fuel Injectors

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system, Fuel injection

Vehicles listed
FREIGHTLINER 114SD2017, 2018, 2019
FREIGHTLINER 122SD2017 to 2019
FREIGHTLINER BUSINESS CLASS M22017 to 2019
FREIGHTLINER CASCADIA2017, 2018, 2019
WESTERN STAR 47002017, 2018, 2019
WESTERN STAR 49002017, 2018, 2019
WESTERN STAR 57002017, 2018, 2019
WESTERN STAR 69002017, 2018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
21V9650002021-12-13. FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
21V3260002021-05-07. FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SS10330942021-06-09. Service bulletin. Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
18SP7442020-12-08. Service bulletin. Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.
18SP730Rev2019-08-08. Service bulletin. 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.
18SP729Rev2019-08-08. Service bulletin. 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.
18SP728Rev2019-08-08. Service bulletin. 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.
0504-182018-10-29. Service bulletin. 0504-18 Fuel System - Fuel Injectors
0313-172018-06-18. Service bulletin. (MCM) (GHG17)
0311-172018-06-18. Service bulletin. (MCM) (GHG17)
sbw490172018-06-11. Service bulletin. Magnetized Fill Neck for Six-Gallon DEF Tanks
15TL62018-03-05. Service bulletin. 15TL6 W470589129100 ? HDEP HP Fuel Rail Test Caps