WenmarOpen by Wenmar Pro

Service bulletin SB213021

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 id605885
Published by NHTSA1999-07-30
Manufacturer's numberSB213021
Manufacturer's date1999-05-21
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

INFORMATION ON CYLINDER HEAD PIPE PLUGS WITH ENCAPSULATED EPOXY SEALANT. *TT

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

Vehicles listed
MACK E-TECH

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