WenmarOpen by Wenmar Pro

Service bulletin 44-036

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10206087
Published by NHTSA2022-01-06
Manufacturer's number44-036
Manufacturer's date2021-12-16
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Vehicles listed
PETERBILT 3482013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20213232021-05-26. Fuel System
21V3910002021-05-26. FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
20143392014-08-07. Fuel System
14V4860002014-08-07. FUEL SYSTEM, DIESEL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
CE0362026-05-06. Warranty extension. 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.
43-0712021-10-05. Service bulletin. 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-PBD2021-07-06. Service bulletin. 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.