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Service bulletin S3275

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 id10238816
Published by NHTSA2023-07-06
Manufacturer's numberS3275
Manufacturer's date2023-06-21
NHTSA componentSTEERING

NHTSA's summary

Campaign - Mack trucks has determined that certain AN, GR, and PI models were built using the incorrect power steering cooler hose clamps.

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

Steering

Vehicles listed
MACK ANTHEM (AN)2024 (the catalog's model; the bulletin names a series or trim of it)
MACK GRANITE (GR)2024 (the catalog's model; the bulletin names a series or trim of it)
MACK LR2024
MACK PINNACLE (PI/PN)2024 (the catalog's model; the bulletin names a series or trim of it)
MACK TERRAPRO (TE)2024 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
20237082023-12-27. Steering
23V8990002023-12-26. STEERING
23V8870002023-12-22. STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
23V7130002023-10-24. STEERING

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
CBR 2440-3 2026012026-02-03. Service bulletin. CBR - Mack Chassis - Model LR - Linear Assist Cylinder Repair.
S3284 2024082024-09-04. Service campaign. Service Campaign: Mack trucks has determined that certain AN, GR, and PI models were built using the incorrect power steering cooler hose clamps.
S3949 2024062024-07-03. Service campaign. SC - Steering Stub Shaft Hardware Replacement
CBR-2375 2024052024-06-04. Service bulletin. CBR: ZF/TRW Steering Gear Side Cover Leak
S3949 2024042024-05-01. Service bulletin. Service Campaign: Steering Stub Shaft Hardware Replacement
S3857 2024022024-03-06. Service bulletin. Service Campaign - MMD Suspension Bracket Torque.
S3815 2024012024-02-02. Service bulletin. Service Campaign: LR Power Steering Assist Cylinder Castle Nut Torque