The stock Jeep positive cable has a large molded connector
that has both the battery cable (the battery +) and the
start solinoid wire molded into one. It makes it easy
to hook up the wires, but impossible to replace just the
battery cable without modification.
In addition, some Jeeps have a negative "Y" cable
with one side going to the block and the other goes to another
large molded connector at the back of the alternator.
Once again that makes it impossible to replace the cable
without buying the entire expensive assembly from Jeep or making some
sort of modification.
Important: Always use appropriate safety measures (safety
glasses, jack stands, etc). Use the correct tools for the
The starter mod:
1) Disconnect both battery cables, removing the negative
battery terminal first, being careful not to short out battery.
Always disconnect ground cable
first and connect it last.
Tips and Tricks
page for more info.
2) Separate the battery cables from the wiring harness by
carefully cutting any tape holding it to the wire harness.
3) Jack up the Jeep enough to get to the starter.
4) Remove the nuts holding the molded connector to
5) Cut the small wire as close as possible to the molded
6) Strip the end of the wire and crimp a new "blue" (16-14 ga) ring terminal on the end of the small wire and heat shrink (use heat gun or blow dryer).
7) Replace small wire on the starter and replace nut.
8) Disconnect the wire going from positive battery
terminal to the under-hood fuse block at the fuse block
and alternator if wire also goes there and new
alternator wire is included in kit.
the old positive cable from the vehicle (there should not
be anything connected to it)
10) Connect the new
positive battery cable to the starter making sure to use
the starter lug cover.
11) Route the positive cable to the
battery being careful to avoid any hot or moving parts that
could damage the cable.
12) Connect positive cable to
battery and to the fuse block.
13) If an alternator
wire is included with your kit, connect it from
alternator to fuse block.
14) Remove and replace
negative cable following the same basic procedure (seperate
from harness, remove from block and inner fender, replace)
- use the "Y" kit if needed. See
Jeep Y cable modification
15) Using electrical tape, loom or wire ties, secure any
hanging or dangling wires away from hot or moving parts.
16) Lastly, connect the negative battery terminal being
careful not to short out battery with wrench.