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April 17, 2026 Warranty extension

Kw & pb DEF

Kenworth technical service bulletin CE036 for 2019 Kenworth T680, 2019 Peterbilt 579 and 2019 Kenworth T800 and others.

Bulletin number
CE036 (CE036)
Component
Fuel/propulsion system
Summary
KW & PB DEF Quality Sensor part number Q21-6127-001 for PACCAR PX-7 and Cummins X15 engines has been added to this warranty policy.

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

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