# Service bulletin 27\-009

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: 11005517
- Published by NHTSA: 2024\-08\-02
- Manufacturer's number: 27\-009
- Manufacturer's date: 2024\-07\-22
- Campaign id or software version: 27\-009
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

Certain Kenworth T880/W990 trucks equipped with the Allison automatic transmission and customer installed PTO are missing a layer in the wiring harness for the PTO. A harness overlay may need to be added to the existing vehicle harness in order for the PTO to function.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11005517-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11005517-9999.pdf)

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

## Components

Electrical system, Transmission and driveline

## Vehicles listed

- 2023 KENWORTH T880
- 2023 KENWORTH W990

## Recalls for the same vehicles and component

- [24V915000](/recalls/nhtsa/24V915000.md), 2024-12-09: ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
- [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
- [22V779000](/recalls/nhtsa/22V779000.md), 2022-10-17: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [CE019](/bulletins/11034284.md), 2026-07-02, Service bulletin: ENGINE; POWER TRAIN. Multiple fuel injector part numbers have been added to this warranty policy.
- [CE033](/bulletins/11034281.md), 2026-07-02, Warranty extension: ENGINE; POWER TRAIN. "KW \& PB 14 fuel injector part numbers \(seven for MX\-11 and seven for MX\-13 engines\) have been added to this warranty policy."
- [CE019](/bulletins/11034063.md), 2026-06-25, Service bulletin: POWER TRAIN; ENGINE. Multiple fuel injector part numbers have been added to this warranty policy.
- [CE033](/bulletins/11034060.md), 2026-06-25, Service bulletin: POWER TRAIN; ENGINE. "KW \& PB 14 fuel injector part numbers \(seven for MX\-11 and seven for MX\-13 engines\) have been added to this warranty policy."
- [43\-080](/bulletins/11033918.md), 2026-06-17, Service bulletin: ELECTRICAL SYSTEM. "KW: A new recommended repair has been added to verify the software level and close the campaign in SIR.The repair procedure has been updated with additional note boxes for clear instructions. PB: The repair procedure has been updated with additional note boxes for clear instructions."
- [R2601](/bulletins/11033387.md), 2026-06-04, Service bulletin: ELECTRICAL SYSTEM. Updated primary and/or secondary chassis modules for certain pre\-production Kenworth chassis are now available for installation.
- [02\-177](/bulletins/11033351.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM. Troubleshooting procedures for 2.1m cab power windows are now available.
- [E326](/bulletins/11032284.md), 2026-05-06, Emissions: ENGINE; ELECTRICAL SYSTEM. EPA17\-24 MX Fuel Injector Connector \- This bulletin has been revised to include all EPA17\-24 and CARB24 PACCAR MX engines.
- [24PBE\_KWE](/bulletins/11029738.md), 2026-03-05, Service bulletin: ELECTRICAL SYSTEM. The Parts section has been updated to clarify that freight charges for safety recall orders should not be passed on to the end customer.
- [24KWE / 24PBE](/bulletins/11028318.md), 2026-02-05, Service bulletin: ELECTRICAL SYSTEM. The right\-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right\-hand shift stalk and the vehicle may result in the vehicle being disabled after it comes to a stop, thereby increasing the risk of crash or injury. A warning will appear on the dash display when communication is lost, including transmission or engine warnings, “\!” next to DNR/DNRP indicator, “\-“ in the DNR/DNRP indicator, and/or chimes, depending upon whether you are operating a diesel/gas or battery electric vehicle.

JSON: [/v1/bulletins/11005517](/v1/bulletins/11005517)

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