All parts necessary to complete Phase 2 of
Kenworth technical service bulletin R2405 for 2025 Kenworth T680, 2024-2025 Peterbilt 579 and 2025 Kenworth T880 and others.
- Bulletin number
- R2405 (R2405)
- Component
- Engine
- Summary
- All parts necessary to complete Phase 2 of this bulletin are now available. This retrofit provides certain chassis equipped with Cummins X15N (Natural Gas) engines with production level parts to replace preproduction parts installed at the time of manufacture.
Vehicles covered
- Kenworth T680 2025 2025
- Peterbilt 579 2024-2025 20242025
- Kenworth T880 2025 2025
- Peterbilt 567 2024-2025 20242025
- Peterbilt 520 2024-2025 20242025
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