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Service bulletin 18SP744

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 id10183954
Published by NHTSA2020-12-08
Manufacturer's number18SP744
Manufacturer's date2020-11-30
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL

NHTSA's summary

Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.

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

Engine, Equipment and accessories, Fuel system, Fuel injection

Vehicles listed
FREIGHTLINER 122SD2013 to 2021
FREIGHTLINER CASCADIA2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
FREIGHTLINER CENTURY2008 to 2010
FREIGHTLINER COLUMBIA2008, 2009, 2010, 2011
FREIGHTLINER CORONADO2010, 2011, 2012, 2013
WESTERN STAR 49002009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 57002015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 69002011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021

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

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...
18SP7452020-12-08. Service bulletin. Special Publication Letter for EPA07 EPA10 Three-Filter Fuel System 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.
0504-182018-12-10. Service bulletin. 0504-18 Fuel System - Fuel Injectors
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)
706-132018-06-18. Service bulletin. 706-13 SPN 157-FMI 10, 15, 17, 18 - GHG14