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Service bulletin SB-54-58

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 id10056548
Published by NHTSA2014-12-24
Manufacturer's numberSB-54-58
Manufacturer's date2015-03-02
Replaces54-58
NHTSA componentELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS

NHTSA's summary

WESTERN STAR: INSTRUCTIONS PROVIDED TO HELP REDUCE VIBRATION ON POWER DISTRIBUTION MODULES (PDM), TO PREVENT CRACKING OF FUSES ON HORIZONTALLY MOUNTED POWERTRAIN. *PE UPDATED 03/02/15*LJ

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Wiring and fuses

Vehicles listed
WESTERN STAR 47002011, 2012, 2013, 2014, 2015
WESTERN STAR 48002001, 2002
WESTERN STAR 49002010
WESTERN STAR 49002012, 2013, 2014, 2015
WESTERN STAR 5900
WESTERN STAR 69002011, 2012, 2013, 2014
WESTERN STAR HERITAGE

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
wp54018 EPA102019-04-08. Service bulletin. Technical Bulletin wp54018 EPA10 Wiring Harness Ordering
wp54018 EPA102019-04-01. Service bulletin. Technical Bulletin wp54018 EPA10 Wiring Harness Ordering
DOC-10333332018-10-29. Service bulletin. SS 1033333 - WST ECC Replacement Jumper Harness Installation.
503-142018-06-18. Service bulletin. 503-14 FMI 3, 4: High Side Digital Output 3 Circuit Failed High
SF5142018-02-12. Service bulletin. Western Star ABS Wiring - Export Only
14CSA222017-11-17. Service bulletin. 14CSA22 DTNA Chassis Wiring Diagrams