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Service bulletin K53510452

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 id10129916
Published by NHTSA2018-03-12
Manufacturer's numberK53510452
Manufacturer's date2018-01-02
NHTSA componentFUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE

NHTSA's summary

Expired - Refer to K93039325 - Mack Chassis - SNM16-032 DEF (Diesel Exhaust Fluid) Contamination In Diesel Fuel.New solution released with improved information

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
MACK CHU
MACK CHU2006 to 2018
MACK CXU
MACK CXU2006 to 2018
MACK GU
MACK GU2006 to 2018
MACK LEU2007 to 2017
MACK LR
MACK LR2010 to 2014
MACK LR2015, 2016, 2017, 2018
MACK MRU2007 to 2018
MACK TD
MACK TD2007 to 2018

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

Other bulletins for the same vehicles and component
CBR 2107-21 2025052025-06-02. Service bulletin. Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
CBR 445- 11 2025052025-06-02. Service bulletin. Vehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important Information On Approved Filters - US17+OBD16 toUS21+OBD23
CBR-570 2024092024-10-03. Service bulletin. CBR: US17 GHG Common Rail Fuel System Component Electrical Faults - Model Year 2017 To 2024
CBR-2139 2024052024-06-04. Service bulletin. CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head. A new and improved fuel galley plug has been developed to resolve this issue.
KC-331-Ver62023-06-05. Service bulletin. CBR: Model Year 2017 to Current - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
KC-3312023-04-04. Service bulletin. Model Year 2017, 2018 - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
KC-21572022-07-05. Service bulletin. Aftertreatment Hydrocarbon Injector (AHI) Troubleshooting Guide - US10+OBD13 And Newer Emissions.
KC-6592022-06-07. Service bulletin. Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions Prior To US17+OBD16 (Common Rail Fuel System), Model Year 2017 And Older
KC-6342022-05-06. Service bulletin. Model Year 2017, 2018 - US17 Emission Engines - The ( Donaldson ) Fuel Filter - Part Number P550529 - " Cannot " Be Used
KC-5052022-04-06. Service bulletin. Mack Chassis -Technical Service Bulletin M-284 - 068, Exhaust Particulate Sensor, Repair ( 2016 Vehicles )