# Warranty extension CE036

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: Warranty extension
- NHTSA id: 11032291
- Published by NHTSA: 2026\-05\-06
- Manufacturer's number: CE036
- Manufacturer's date: 2026\-04\-17
- Campaign id or software version: CE036
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

KW \& PB DEF Quality Sensor part number Q21\-6127\-001 for PACCAR PX\-7 and Cummins X15 engines has been added to this warranty policy.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032291-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032291-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- 2019 KENWORTH T680
- 2019 KENWORTH T800
- 2019 KENWORTH T880
- 2019 KENWORTH W900
- 2019 KENWORTH W990
- 2019 PETERBILT 330
- 2019 PETERBILT 337
- 2019 PETERBILT 348
- 2019 PETERBILT 367
- 2019 PETERBILT 389
- 2019 PETERBILT 567
- 2019 PETERBILT 579

## Recalls for the same vehicles and component

- [2021323](/recalls/tc/2021323.md), 2021-05-26: Fuel System
- [21V391000](/recalls/nhtsa/21V391000.md), 2021-05-26: FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
- [2018527](/recalls/tc/2018527.md), 2018-09-25: Fuel System

## Other bulletins for the same vehicles and component

- [03\-087 \(E295\)](/bulletins/10232496.md), 2023-03-06, Service bulletin: FUEL SYSTEM, OTHER:FUEL FILTER; ENGINE AND ENGINE COOLING. Certain Model Year 2021\-2024 chassis with PACCAR MX engines and optional fuel filter restriction virtual gauge may display incorrect restriction levels. The virtual gauge will be temporarily disabled until a revised sensor strategy is developed.
- [21PBN](/bulletins/10227172.md), 2022-12-05, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; ELECTRICAL SYSTEM. 21PBN – LNG/CNG Methane Detecti on System Will Not Warn Operator if System Loses Power – NHTSA ID:21V00N, TC: 2021\-793
- [21PBN](/bulletins/10207154.md), 2022-02-04, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; ELECTRICAL SYSTEM; EQUIPMENT. Interim Safety Recall – Methane detection system will not warn the operator if the system loses power. The driver could be unaware of an issue with the methane detection system or excessive methane present, increasing the risk of a fire, crash and/or personal injury. The repair procedure will be added when it is available.
- [44\-036](/bulletins/10206087.md), 2022-01-06, Service bulletin: FUEL SYSTEM, GASOLINE. Information Only: An improved procedure has been developed for servicing the fuel filter on model 348 chassis equipped with a PX\-9 and 11 5/8” frame rails.
- [43\-071](/bulletins/10201965.md), 2021-10-05, Service bulletin: FUEL SYSTEM, DIESEL. Fix\-As\-Fail – Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid \(DEF\) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue operation with a failed DEF sensor by disabling the DEF sensor diagnostics.
- [21\-PBD](/bulletins/10198809.md), 2021-07-06, Service bulletin: FUEL SYSTEM, GASOLINE. Safety Recall – Cummins Fuel Rail Leak – NHTSA ID: 21V391 / TC: 2021\-323, Cummins Recall: C2423. Cummins PX9 and ISX12 fuel rails may leak around a sealing washer, potentially resulting in fuel leaks. Undetected prolonged diesel fuel spray in the presence of an ignition source may increase the risk of fire.
- [21KWC](/bulletins/10198759.md), 2021-07-06, Service bulletin: FUEL SYSTEM, GASOLINE. Safety Recall – Cummins Fuel Rail Leak – NHTSA ID: 21V391 / TC: 2021\-323, Cummins Recall: C2423. Cummins PX9 and ISX12 fuel rails may leak around a sealing washer, potentially resulting in fuel leaks. Undetected prolonged diesel fuel spray in the presence of an ignition source may increase the risk of fire.
- [44\-030](/bulletins/10164402.md), 2019-09-05, Service bulletin: FUEL SYSTEM, DIESEL. Fix\-As\-Fail \- Nylon fuel lines may be too short, potentially resulting in a cracked or loose, low pressure fuel fitting at the engine or fuel tank, which may introduce air into the fuel system resulting in a hard\-to\-start or no\-start condition.

JSON: [/v1/bulletins/11032291](/v1/bulletins/11032291)

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