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April 4, 2026 Emissions

EMY21-25 ghg

Kenworth technical service bulletin 43-087 for 2022-2026 Kenworth T680, 2022-2025 Peterbilt 579 and 2022-2025 Kenworth T800 and others.

Bulletin number
43-087 (43-087)
Component
Engine
Summary
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.

Owners of these vehicles have filed 2 complaints in the engine category.

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