Service bulletins for the 2019 Kenworth W990
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.
46 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Body and frame are shown. Show all
| 02-174 | 2023-09-01. Service bulletin. ENGINE AND ENGINE COOLING; STRUCTURE; EQUIPMENT. Certain W990 hood-mounted engine air intake covers could loosen and rattle or separate from vehicle. New air intake covers are available with improved retention. Installation of new covers requires hood modification. Procedures are available for replacement of hood-mounted engine air intake covers. |
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| 02-184 | 2023-09-01. Service bulletin. STRUCTURE. Certain W990 chassis may have hood hardware that could loosen. Additionally, some chassis may have hood rests that are too rigid causing excessive noise. Hood attaching hardware and hood rests will be replaced as necessary. |
| 43-066 | 2020-04-07. Service bulletin. STRUCTURE. DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number M86-6221-003**(TANK-DEF MEDIUM ASSY) and M86-6222-003**(TANK-DEF LARGE, ASSY). Resolution is to resolve the vibration on the tank cover by adding bottom tank washers. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.