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Service bulletin SB-258-021-2

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 id10036937
Published by NHTSA2011-04-20
Manufacturer's numberSB-258-021-2
Manufacturer's date2010-11-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP

NHTSA's summary

MACK: DIESEL EXHAUST FLUID PUMP, REPAIR. ON CERTAIN TRUCKS, REPAIRS HAS BEEN AUTHORIZED ON DIESEL EXHAUST FLUID (DEF) PUMP. THE ONLY EXCEPTION FOR THIS PROCEDURE IS TO REPLACE HEATING BRACKET ON DEF PUMP WHICH IS NOT A SERVICEABLE COMPONENT. NO PARTS AVAILABLE FOR THE DEF PUMP. NO MODEL YEARS LISTED. *PE UPDATED 5/23/11. *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

Engine, Exhaust and emissions, Fuel system, Fuel pump

Vehicles listed
MACK GU2011
MACK LEU2012
MACK MRU2012
MACK PINNACLE (CHU)2011
MACK PINNACLE (CXU)2011
MACK TD7132010
MACK TD7142010
VOLVO VHD2012
VOLVO VN2011

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