Dodge Ram 2004 — technical service bulletin
Bulletin 04012 · NHTSA communication 10006893 · issued Apr 23, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
1
vehicle entries
Official summary
Some trucks equipped with cummins diesel engines were built with engine block freeze plugs, which may not have sufficient interference fit to the block. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.