7 - 4
Pistons and Connecting Rods
9.612.0.006.7160 - 05/04
Pre-Assembly Inspections and Measurements
The weight of the connecting rod is identified by a sequence of letters and numbers between the stem and the cap.
According to the letter (X, Y and Z) it is possible to identify the weight strip.
Letter Weight Strip Application
X 1625g - 1666g Production
Y 1667g - 1707g Production
Z 1708g - 1748g Spare Part
The difference of weight between all pistons / connecting
rods sets, in the same engine, must be of, at the most,
41g. So, as spare part it is only available the connecting
rod of the letter Y.
Connecting Rod Mark
Connecting Rod Mark
The connecting rod stem / cap pair is made by the
coincidence of the digits engraved on the connecting
rod stem with the first 4 digits engraved on the
connecting rod cap.