WenmarOpen by Wenmar Pro

Service bulletin FSB 262-005

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 id10083066
Published by NHTSA2016-10-20
Manufacturer's numberFSB 262-005
Manufacturer's date2015-02-13
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

COOLANT BYPASS HOUSING SEAL. IF A COOLANT LEAK AT THE COOLANT BYPASS HOUSING EXISTS ON A VEHICLE EQUIPPED WITH A MACK US07 MP8 ENGINE, A REVISED HOUSING SEAL (PART NUMBER 21298915) HAVING A SHORTER LOCATING TAB AND A NEW COOLANT BYPASS HOUSING ARE AVAILABLE THROUGH THE PARTS SYSTEM.

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, Cooling system

Vehicles listed
MACK MACK

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