Cylinder Block, Liners, Pistons, and Rods
02
030
6
DPSG,OUO1004,871 –19–30JUL99–1/1
Connecting Rods—General Information
RG10300 –UN–27AUG99
Connecting Rods
RG9616 –UN–02DEC98
PRECISION JOINT
Rod (Later Engines)
A—Tongue-and-Groove Rod (Early Engines)
B—PRECISION JOINT Rod (Later Engines)
C—PRECISION JOINT Details
Earlier engines have the traditional tongue-and-groove
between the connecting rod and cap (A). Later engines
have the PRECISION JOINT rod and cap (B).
To create the PRECISION JOINT, the connecting rod is
notched with a laser beam. Then a precision mandrel in
the rod bore is powered to separate the cap from the rod
at the joints (C).
Both types of rods provide a strong joint. Removal and
installation is similar, with differences noted, including
different torque specifications for cap screws.
IMPORTANT: Replace rods with the same type. Do
Not mix tongue-and-groove with
PRECISION JOINT rods in the same
engine. See parts catalog for
recommendations.
PRECISION JOINT is a trademark of Deere & Company
CTM100 (06APR04)
02-030-6
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=146
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