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Service bulletin 506-14

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 id10141891
Published by NHTSA2018-06-18
Manufacturer's number506-14
Manufacturer's date2014-05-06
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

506-14 506-14 Removal and Installation and Inspection of the Exhaust Gas Recirculation Valve Actuator Pull Rod

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, Exhaust and emissions, EGR valve

Vehicles listed
FCCC XBP2010 to 2013
FCCC XCM2010 to 2013
FCCC XCP2010 to 2013
FREIGHTLINER BUSINESS CLASS M22010 to 2013
FREIGHTLINER CASCADIA2010, 2011, 2012, 2013
FREIGHTLINER COLUMBIA2010, 2011, 2012, 2013
FREIGHTLINER CORONADO2010, 2011, 2012, 2013
WESTERN STAR 47002010, 2011, 2012, 2013
WESTERN STAR 49002010, 2011, 2012, 2013

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

Other bulletins for the same vehicles and component
TechTalk20392020-09-25. Service bulletin. Tech Talk Discussion for DD15 GHG14 EGR linkage hex nuts.
525-132018-06-25. Service bulletin. 525-13 SPN 2791-FMI 7 ? ALL YEARS
418-132018-06-18. Service bulletin. 418-13 SPN 2791-FMI 12 - GHG14
407-132018-06-18. Service bulletin. 407-13 EGR Actuator Slow Learn
18SP6842018-06-18. Service bulletin. 18SP684Rev3 EPA07 and EPA10 DD Platform EGR Delta Pressure Sensor Update
0141-172018-04-16. Service bulletin. 0141-17 SPN 2659 (MCM) (EPA10)
0114-172018-04-16. Service bulletin. 0114-17 SPN 2791 (MCM) (EPA07;EPA10)
0514-162018-03-13. Service bulletin. Cleaning of the Exhaust Gas Recirculation Venturi Pipe Delta P Sensor Ports
18SP6872017-10-15. Service bulletin. 18SP687 18SP687 DD15/16 EGR Actuator Replacement Service Kit