Unfortunately, the S54 engine used
in E46 M3 and MZ3/4 cars was released with a rod bearing failure
problem in earlier 2001-2003 model years. The factory
addressed the issue with a rod replacement, but there is still room
on the table for a better bearing solution. Our kit
consisting of a treated rod bearing and race-quality ARP hardware
is recommended for cars that see the track to address this oiling
issue.
Our treated rod bearings are not
coated - coatings too often add too much material and interfere
with proper tolerances, that causing more problems than they solve.
The bearings we use in our kits have been treated with a process
that not only smoothes the grain structure in the surface of the
bearing, but also aids in oil retention, providing more lubricity
in this critical area of the S54 engine.
ARP Pro Series connecting rod bolts
are precision CNC-machined to exacting specifications and designed
for optimum reliability. They are heat-treated and threads are
rolled to provide up to ten times more fatigue strength. This makes
them far superior to standard OEM fasteners in terms of durability,
and fully capable of handling the extra stress of high-combustion
engines.
Kit fits all S54 engines and
includes one rod bearing and rod bolt set.
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