# Service bulletin KC\-2139

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: 10219304
- Published by NHTSA: 2022\-09\-07
- Manufacturer's number: KC\-2139
- Manufacturer's date: 2022\-08\-29
- NHTSA component: ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL

## NHTSA's summary

fuel in the oil inspection

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219304-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219304-9999.pdf)

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

## Components

Engine, Fuel system

## Vehicles listed

- 2020 to 2021 MACK ANTHEM \(AN\)
- 2020 to 2021 MACK GRANITE \(GR\)
- 2020 to 2021 MACK LR
- 2020 to 2021 MACK MD
- 2020 to 2021 MACK PINNACLE \(PI/PN\)
- 2020 to 2021 MACK TE

## Other bulletins for the same vehicles and component

- [M0039 032026](/bulletins/11030590.md), 2026-04-02, Emissions: ENGINE. Emissions \- EC0039 MST21 Failure to Detect P20EE \- AN, CHU.
- [CBR 2107\-22 202601](/bulletins/11028032.md), 2026-02-02, Service bulletin: ENGINE. CBR \- Mack DEF Level \(UQLS\) Sensor Troubleshooting Guide \- US17\+OBD16 Emissions to US22\+OBD2023 \(DOES NOT APPLY TO AN\(4\) and PR\(4\)\).
- [CBR 199 202512](/bulletins/11027007.md), 2026-01-05, Service bulletin: ENGINE. Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.
- [CBR 2171\-11 202511](/bulletins/11026025.md), 2025-12-03, Service bulletin: ENGINE; ELECTRICAL SYSTEM. CBR \- Mack Temperature Sensor Troubleshooting Guide
- [CBR 199\-6 202511](/bulletins/11026021.md), 2025-12-03, Service bulletin: ENGINE. CBR \- 13 Liter Engines ONLY \- Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing.
- [CBR 2107\-21 202505](/bulletins/11018813.md), 2025-06-02, Service bulletin: FUEL/PROPULSION SYSTEM; ENGINE. Mack DEF Level \(UQLS\) Sensor Troubleshooting Guide \- US17\+OBD16 Emissions and Newer
- [CBR 445\- 11 202505](/bulletins/11018806.md), 2025-06-02, Service bulletin: FUEL/PROPULSION SYSTEM. Vehicles Equipped With a Common Rail Fuel System \- Aftermarket Secondary Fuel Filters, Important Information On Approved Filters \- US17\+OBD16 toUS21\+OBD23
- [CBR 170\-8 202505](/bulletins/11018804.md), 2025-06-02, Service bulletin: ENGINE. Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure \(Low Oil Pressure\) \(Possible Related Codes \- SPN4811 , SPN 100 , PID 100\)
- [CBR\-2449 202503](/bulletins/11016347.md), 2025-04-02, Service bulletin: ENGINE. Cummins Exhaust Aftertreatment System \(EATS\) catalysts may experience cracking, which may be attributed to excessive vertical vibration in the exhaust stack. To mitigate this issue, a modification to the exhaust stack length is required.
- [CBR\-561 202503](/bulletins/11016342.md), 2025-04-02, Service bulletin: ENGINE. If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR\-659􀁡Mack Chassis \- Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information \- All Emissions, All Model Years

JSON: [/v1/bulletins/10219304](/v1/bulletins/10219304)

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