# Service bulletin M\-451\-001

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: 10219059
- Published by NHTSA: 2022\-09\-01
- Manufacturer's number: M\-451\-001
- Manufacturer's date: 2022\-08\-06
- NHTSA component: STRUCTURE; SUSPENSION:FRONT; POWER TRAIN:DRIVELINE

## NHTSA's summary

2007 Document reformatted to be published as a TSB in Impact. Updated Crossmember for improved clearance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219059-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219059-9999.pdf)

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

## Components

Body and frame, Suspension, Transmission and driveline

## Vehicles listed

- 2002 to 2008 MACK CHN
- MACK CHU
- 2006 to 2018 MACK CHU
- 2002 to 2008 MACK CXN
- 2006 to 2008 MACK CXP
- MACK CXU
- 2006 to 2018 MACK CXU

## Recalls for the same vehicles and component

- [07V123000](/recalls/nhtsa/07V123000.md), 2007-03-21: POWER TRAIN:AXLE ASSEMBLY
- [05V454000](/recalls/nhtsa/05V454000.md), 2005-10-04: POWER TRAIN:AXLE ASSEMBLY
- [05V313000](/recalls/nhtsa/05V313000.md), 2005-07-07: POWER TRAIN:AXLE ASSEMBLY
- [05V111000](/recalls/nhtsa/05V111000.md), 2005-03-24: POWER TRAIN:AXLE ASSEMBLY

## Other bulletins for the same vehicles and component

- [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.
- [CBR\-202 202402](/bulletins/10251329.md), 2024-03-05, Service bulletin: POWER TRAIN. CBR \- Automated Manual Transmission \( AMT \) Flywheel Pilot Bearing Wear On Input Shaft.
- [M\-465\-001 202311](/bulletins/10246086.md), 2023-12-05, Service bulletin: POWER TRAIN. TSB: Mack Trucks now offer an improved HD Inter\-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 \- 3.50 axle ratios and April 1st, 2023 for 3.56 \- 3.98 ratios. The new HD through shaft is an upgrade over the current standard shaft and can now be used as a replacement part instead of the standard shaft. The new HD shaft has a new design to increase strength, longevity and life over the standard shaft.
- [M728\-005A 202308](/bulletins/10241946.md), 2023-09-06, Service bulletin: SUSPENSION. TSB: Barksdale Leveling Valve, Leak Test
- [KC\-474\-Ver5](/bulletins/10237342.md), 2023-06-05, Service bulletin: POWER TRAIN. CBR: Diagnostic Trouble Code \(DTC\) P215A\-64, Fault Code SPN 84 FMI 19
- [M\-711\-002](/bulletins/10219058.md), 2022-09-01, Service bulletin: STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; STRUCTURE. 2008 Document reformated to be published as a TSB in Impact. Frame reinforcement plate.
- [M\-711\-001](/bulletins/10219057.md), 2022-09-01, Service bulletin: SUSPENSION:REAR; SUSPENSION. 2008 Document reformatted to be published as a TSB in Impact. Rear Suspension Repair.
- [KC\-2112](/bulletins/10215315.md), 2022-07-05, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. Programming Failure \- Chassis With Cummins Engine And An Allison Transmission
- [KC\-405](/bulletins/10215295.md), 2022-07-05, Service bulletin: POWER TRAIN. Warranty Automated Manual Transmission \( AMT, I\-Shift, mDrive \) Control Housing Assembly; Guidelines For Filing A Claim For Chassis Return Visit With Transmission Issues After A Repair Requiring Control Housing Removal And Reinstallation \- US07 And N.

JSON: [/v1/bulletins/10219059](/v1/bulletins/10219059)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20M-451-001&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10219059&vehicle=Service%20bulletin%20M-451-001)