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Service bulletin WSTCAE171-2019

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 id10193762
Published by NHTSA2021-05-18
Manufacturer's numberWSTCAE171-2019
Manufacturer's date2019-03-05
NHTSA componentEQUIPMENT; FUEL SYSTEM, OTHER; POWER TRAIN

NHTSA's summary

Allison FuelSense 2.0

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

Equipment and accessories, Fuel system, Transmission and driveline

Vehicles listed
FREIGHTLINER 108SD2020
FREIGHTLINER 114SD2020
FREIGHTLINER 122SD2020
FREIGHTLINER ARGOSY2020
FREIGHTLINER BUSINESS CLASS M22020
FREIGHTLINER CASCADIA2020
FREIGHTLINER COLUMBIA2020
FREIGHTLINER CORONADO2020
WESTERN STAR 47002020
WESTERN STAR 48002020
WESTERN STAR 49002020
WESTERN STAR 57002020
WESTERN STAR 69002020

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

Recalls for the same vehicles and component
22V3380002022-05-16. EQUIPMENT:OTHER:LABELS
20217562021-12-13. Fuel System
21V9650002021-12-13. FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
20212712021-05-07. Fuel System
21V3260002021-05-07. FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
20V6340002020-10-14. EQUIPMENT:OTHER:LABELS; TIRES
20V2110002020-04-10. EQUIPMENT:OTHER:LABELS
20V1760002020-03-23. POWER TRAIN:AXLE ASSEMBLY
19V4430002019-06-11. POWER TRAIN:AXLE ASSEMBLY
19V1370002019-02-27. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)

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
PB-47-900-WST2026-07-06. Service bulletin. Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
TSB-26-057-FTL2026-06-01. Service bulletin. Revised Technical Service Bulletin for DT12 OVX Transmission Refresh
MyCom_02062026-12026-03-04. Other. My Communications for update on UFU R61709 Fuel Filters
TSB-26-055-FTL2026-02-03. Service bulletin. Revised Technical Service Bulletin for DT12 Excessive Wear
TSB-26-055-FTL2026-02-03. Service bulletin. Technical Service Bulletin for DT12 Excessive Wear
TSB-26-052-FTL2026-02-03. Service bulletin. Technical Service Bulletin for DT12 PTO Upfit
FleetCom_Passive Lube2026-01-08. Other. Fleet Communications for Detroit Axle NFD ALM to Passive Lube Management
FleetCom_Oil Plug Loc2026-01-08. Other. Fleet Communications for NFD Lower Oil Plug Location - SP Axles
FleetCom_NFD Axle2026-01-08. Other. Fleet Communications for Detroit NFD Axle - Factory Fluid Change
MYCOM_10302025-12025-11-05. Other. My Communications for Update to DTNA parts on UFU R61709