EMY25 Engine Label Replacement
Kenworth technical service bulletin E339 for 2026 Kenworth T880, 2026 Peterbilt 567 and 2026 Peterbilt 520.
- Bulletin number
- E339 (E339)
- Component
- Engine
- Summary
- EMY25 Engine Label Replacement - (KW) Certain vehicle model year 2026 Kenworth chassis equipped with EMY2025 PACCAR MX engines require a revised engine label update. (PB) Certain vehicle model year 2026 Peterbilt chassis equipped with EMY2025 PACCAR MX engines require a revised engine label update.
Vehicles covered
- Kenworth T880 2026 2026
- Peterbilt 567 2026 2026
- Peterbilt 520 2026 2026
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