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Service bulletin SB-414007

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 id10032010
Published by NHTSA2010-02-04
Manufacturer's numberSB-414007
Manufacturer's date2009-03-24
NHTSA componentSTEERING:GEAR BOX (OTHER THAN RACK AND PINION); STEERING:HYDRAULIC POWER ASSIST:PUMP

NHTSA's summary

MACK TRUCK: POWER STEERING GEARS ARE DESIGNED TO OPERATE AT A SPECIFIC MAXIMUM PRESSURE AND REQUIRE A MINIMUM AND MAXIMUM FLOW RANGE FROM THE POWER STEERING PUMP. ALL MACK TRUCKS INCLUDED. NO MODEL YEARS LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Steering, Power steering, Steering gear

Vehicles listed
MACK MACK

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