# Service bulletin TSB M\-913\-001 202609

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: 11037730
- Published by NHTSA: 2026\-10\-02
- Manufacturer's number: TSB M\-913\-001 202609
- Manufacturer's date: 2026\-09\-02
- NHTSA component: ENGINE; POWER TRAIN

## NHTSA's summary

Parker engine\-mounted hydraulic pump service bulletin.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037730-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037730-9999.pdf)

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

## Components

Engine, Transmission and driveline

## Vehicles listed

- 2022 to 2026 MACK ANTHEM \(AN\)
- 2022 to 2026 MACK GRANITE \(GR\)
- 2022 to 2026 MACK PINNACLE \(PI/PN\)

## Recalls for the same vehicles and component

- [25V256000](/recalls/nhtsa/25V256000.md), 2025-04-17: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [24V424000](/recalls/nhtsa/24V424000.md), 2024-06-09: POWER TRAIN:AXLE ASSEMBLY; STEERING:LINKAGES:TIE ROD ASSEMBLY
- [23V731000](/recalls/nhtsa/23V731000.md), 2023-10-31: ENGINE

## Other bulletins for the same vehicles and component

- [S4533 202608](/bulletins/11036596.md), 2026-09-02, Service campaign: ENGINE. Mack Trucks has determined that certain AN model trucks equipped with an MP8 Turbo Compound \(TC\) engine may experience TC Double Idler Gear failure due to incorrect bearing preload. TC units within this population are suspected to be affected, which could result in failure and potential engine damage. For the affected vehicle population, please follow the instructions provided below to remove the TC unit, replace the double idler gear with a new one, and reinstall the TC unit.
- [CBR 2596 202608](/bulletins/11036585.md), 2026-09-01, Service bulletin: ENGINE; ELECTRICAL SYSTEM. The purpose of this CBR is to provide steps on how to correct a customer complaint of a no crank/engine start condition.
- [CBR\-2592\-1 202606](/bulletins/11034135.md), 2026-06-29, Service bulletin: ENGINE. The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86 accompanied With intermittent loss of throttle.
- [CBR\-2591\-1 202606](/bulletins/11034133.md), 2026-06-29, Service bulletin: ENGINE. The purpose of this CBR it to provide release notes for the recent Engine ECU software.
- [CBR\-2586\-1 202606](/bulletins/11034129.md), 2026-06-29, Service bulletin: ENGINE. The purpose of this CBR is to address issues of exhaust stack rotation on version 4 products.
- [CBR 2465\-6 202605](/bulletins/11033131.md), 2026-06-02, Service bulletin: ELECTRICAL SYSTEM; ENGINE. CBR to diagnosis issues with the Proactive Engine Restart system and Hood Open message.
- [GDC26\-001 202604](/bulletins/11032095.md), 2026-05-05, Over\-the\-air update: POWER TRAIN. GDC \- Transmission Oil Level Sensor
- [CBR 2573\-1 202604](/bulletins/11032092.md), 2026-05-05, Service bulletin: POWER TRAIN. CBR \- Mack Chassis \- Through Shaft Bearing Retainer Breakage On Mack Carriers.
- [CBR 2362\-3 202604](/bulletins/11032086.md), 2026-05-04, Service bulletin: POWER TRAIN. CBR \- Mack Carrier Nut Adhesive Change.
- [M0039 032026](/bulletins/11030590.md), 2026-04-02, Emissions: ENGINE. Emissions \- EC0039 MST21 Failure to Detect P20EE \- AN, CHU.

JSON: [/v1/bulletins/11037730](/v1/bulletins/11037730)

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