Service bulletins for the 2026 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.
39 on file from NHTSA, as of 2026-10-19.
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By component
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Only bulletins with type: Emissions are shown. Show all
| 43-087 | 2026-05-06. Emissions. ENGINE. EMY21-25 GHG Label Replacement (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation. (PB) Certain Model 367 / 389 / 567 / 579 / 589 have updated GHG labels available for order and installation. |
|---|---|
| E326 | 2026-05-06. Emissions. ENGINE; ELECTRICAL SYSTEM. EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines. |
| E326 | 2026-04-07. Emissions. ENGINE. EPA17-24 MX-13 Fuel Injector Connector - This bulletin has been revised to include EPA24 PACCAR MX-13 engines. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.