WenmarOpen by Wenmar Pro

Service bulletin 18SP703

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 id10124173
Published by NHTSA2017-11-17
Manufacturer's number18SP703
Manufacturer's date2014-08-01
NHTSA componentFUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE

NHTSA's summary

18SP703 18SP703 - GHG14 KM63 GEN2 Low Pressure Fuel Pump-Two-Filter Fuel System Ki

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 pump

Vehicles listed
FCCC MBC2014 to 2015
FCCC MC2011 to 2012
FCCC MC2015
FCCC MCL2005 to 2012
FCCC MT452011 to 2012
FCCC MT452015
FCCC MT45G2014 to 2015
FCCC MT552011 to 2012
FCCC MT552015
FCCC MT55G2014 to 2015
FCCC S22011 to 2012
FCCC S22016 to 2017
FCCC S2 106 CH2011 to 2013
FCCC S2C 106CAB2011 to 2013
FCCC S2C 106CAB2015
FCCC S2C 106CAB2018
FCCC S2G2014 to 2016
FCCC SPORT M21062015
FCCC XBP2007 to 2016
FCCC XBR2011 to 2018
FCCC XBS2011 to 2016
FCCC XCL2011 to 2018
FCCC XCM2007 to 2018
FCCC XCP2007 to 2017
FCCC XCR2011 to 2018
FCCC XCS2011 to 2016
FCCC redundant S2G2018
FREIGHTLINER BUSINESS CLASS M22015
FREIGHTLINER CASCADIA2014
FREIGHTLINER COLUMBIA2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
FREIGHTLINER CORONADO2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
WESTERN STAR 47002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
WESTERN STAR 48002011, 2012, 2013, 2014, 2015, 2016, 2017
WESTERN STAR 4900
WESTERN STAR 49002004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
WESTERN STAR 4900 SA2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
WESTERN STAR 4900EX2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
WESTERN STAR 57002008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
WESTERN STAR 6900
WESTERN STAR 69002004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
WESTERN STAR CONSTELLATION2009 to 2012

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

Recalls for the same vehicles and component
11V2870002011-05-18. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
10V3390002010-07-27. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
09V3900002009-10-06. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

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
TS10330142020-07-31. Service bulletin. Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines. Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics need to be performed to find the root cause.
0611-192019-08-08. Service bulletin. Service Information Bulletin was released, to add new procedures to address diagnostics near the high pressure pump
0508-182018-10-29. Service bulletin. 0508-18 Aftertreatment
18SP7062018-06-18. Service bulletin. 18SP706 Replacement of the High Pressure Fuel Pump Camshaft Oil Seal
15TL42018-03-05. Service bulletin. 15TL4 W470589050900 ? 3/8? Drive GEN2 Two-Stage Valve Socket
15TS92018-03-05. Service bulletin. 15TS9 Hydrocarbon Doser Block Fuel Compensation Pressure Sensor
320-152018-03-05. Service bulletin. 320-15 SPN 4374 (ACM) (GHG14)
18SP7062018-03-05. Service bulletin. 18SP706 Replacement of the High Pressure Fuel Pump Camshaft Oil Seal
0218-142018-01-05. Service bulletin. 0218-14 GHG14 Diesel Exhaust Fluid Pump Module Filter
09 06-162016-10-20. Service bulletin. 0906-16 LOW PRESSURE FUEL PUMP