# Service bulletin E307

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.

- Type: Service bulletin
- NHTSA id: 10254171
- Published by NHTSA: 2024\-05\-04
- Manufacturer's number: E307
- Manufacturer's date: 2024\-04\-19
- NHTSA component: POWER TRAIN; ENGINE AND ENGINE COOLING

## NHTSA's summary

CARB Emission s Manufacturer Warranty term and/or kilometers conversion displayed in certain EMY 2022\-2023 PX\-7 or PX\-9 Operator’s Manuals are incorrect.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10254171-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10254171-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Transmission and driveline

## Vehicles listed

- 2023 PETERBILT 220
- 2023 PETERBILT 325
- 2023 PETERBILT 330
- 2023 PETERBILT 337
- 2023 to 2025 PETERBILT 348
- 2023 to 2025 PETERBILT 365
- 2023 to 2025 PETERBILT 520
- 2023 to 2025 PETERBILT 535
- 2023 to 2025 PETERBILT 536
- 2023 to 2025 PETERBILT 537
- 2023 PETERBILT 548
- 2024 to 2025 PETERBILT 548
- 2023 to 2025 PETERBILT 567
- 2023 to 2025 PETERBILT 579

## Recalls for the same vehicles and component

- [2025018](/recalls/tc/2025018.md), 2025-01-16: Powertrain
- [24V903000](/recalls/nhtsa/24V903000.md), 2024-12-02: POWER TRAIN:AXLE HUBS
- [24V190000](/recalls/nhtsa/24V190000.md), 2024-03-20: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
- [2024161](/recalls/tc/2024161.md), 2024-03-08: Powertrain
- [23V749000](/recalls/nhtsa/23V749000.md), 2023-11-07: ENGINE
- [2023496](/recalls/tc/2023496.md), 2023-09-05: Powertrain
- [23V616000](/recalls/nhtsa/23V616000.md), 2023-09-05: POWER TRAIN:DRIVELINE:DRIVESHAFT
- [2023437](/recalls/tc/2023437.md), 2023-08-04: Powertrain
- [23V504000](/recalls/nhtsa/23V504000.md), 2023-07-21: POWER TRAIN:DRIVELINE
- [2022470](/recalls/tc/2022470.md), 2022-08-18: Engine

## Other bulletins for the same vehicles and component

- [T017](/bulletins/11037625.md), 2026-10-01, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN. Information has been added to identify that ECAT incorrectly identifies PS386 as the correct transmission oil for TX\-8 transmission on certain vehicles.\[
- [P001](/bulletins/11037541.md), 2026-09-29, Service bulletin: ENGINE. "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
- [E343](/bulletins/11037451.md), 2026-09-23, Service bulletin: ENGINE. An exhaust manifold slip joint seal kit is now available for EPA 2017\-2024 PACCAR MX\-13 engines.
- [P003](/bulletins/11037450.md), 2026-09-23, Service bulletin: ENGINE. "KW: A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 1 chassis. The total chassis count is now 10. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section."
- [P001](/bulletins/11037449.md), 2026-09-23, Service bulletin: ENGINE. "KW: The chassis list has been updated to include 1 chassis. The total chassis count is now 53. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 8 chassis. The total chassis count is now 130. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section."
- [P002](/bulletins/11037448.md), 2026-09-23, Service bulletin: ENGINE. "KW: A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 2 chassis. The total chassis count is now 4. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section."
- [P003](/bulletins/11036428.md), 2026-08-27, Service bulletin: ENGINE. "KW: A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 1 chassis. The total chassis count is now 10. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section."
- [P002](/bulletins/11036427.md), 2026-08-27, Service bulletin: ENGINE. "KW: A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 2 chassis. The total chassis count is now 4. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section."
- [P001](/bulletins/11036426.md), 2026-08-27, Service bulletin: ENGINE. "KW: The chassis list has been updated to include 1 chassis. The total chassis count is now 53. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 8 chassis. The total chassis count is now 130. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section."
- [43\-089](/bulletins/11036342.md), 2026-08-25, Service bulletin: ENGINE. This optional software update is expected to be available after 08/28/2026.

JSON: [/v1/bulletins/10254171](/v1/bulletins/10254171)

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