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July 18, 2026 Service bulletin

Incorrect air filters may be inadvertently installed in certain chassis equipped with under-hood Donaldson...

Kenworth technical service bulletin 41-029 for 2020-2027 Kenworth T680, 2020-2027 Peterbilt 579 and 2020-2026 Kenworth T880 and others.

Bulletin number
41-029
Component
Engine
Summary
Incorrect air filters may be inadvertently installed in certain chassis equipped with under-hood Donaldson air filter housings.

Owners of these vehicles have filed 3 complaints in the engine category.

Vehicles covered

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