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April 17, 2026 Warranty extension

Kw & pb DEF

Kenworth technical service bulletin CE037 for 2020 Kenworth T680, 2020 Peterbilt 579 and 2020 Kenworth T800 and others.

Bulletin number
CE037 (CE037)
Component
Fuel/propulsion system
Summary
KW & PB DEF Quality Sensor part number Q21-6127-001 for Cummins X15 engines has been added to this warranty policy.

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