Service bulletins for the 2014 Peterbilt 579
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
56 on file from NHTSA, as of 2026-10-19.
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By component
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Only bulletins with component: Transmission and driveline are shown. Show all
| 11-001 | 2020-06-02. Service bulletin. POWER TRAIN. Information only: Hendrickson Softek front axle maintenance intervals and requirements. |
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| 716-1 | 2017-02-18. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. NON-SAFETY CAMPAIGN: WATSON & CHALIN LIFT AXLE FRAME BRACKETS WITH SLOTTED LOWER MOUNTING HOLES MAY EXHIBIT CRACKING WHEN FASTENERS ARE POSITIONED AT THE UPPER PORTION OF THE SLOT. INSTALLING A DOUBLER PLATE MAY PREVENT CRACKS FROM DEVELOPING. FOR VEHICLES WHERE CRACKING IS EVIDENT, A NEW UPDATED SIDE PLATE WILL BE INSTALLED. |
| RN-714-1 | 2014-10-28. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION. PETERBILT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN TRUCKS, AT TIME OF ASSEMBLY, MAY NOT HAVE A PROPERLY SEATED UPPER REVERSE IDLER FEED TUBE (OIL SUPPLY LINE), RESULTING IN BEARINGS HAVING REDUCED OIL PRESSURE. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.