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Mustang Alternator Install - SVE 130 Amp (86-93 Fox Body)
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Published on 2013-08-06
SVE 130 Amp Alternator Upgrade Kit.
This SVE 130 amp alternator upgrade kit gives your 1986-1993 Foxbody Mustang more charging power for your accessories! 1986-1993 Mustang stock alternators suffer from small wiring and low output, and the power wire plug is prone to melt and even cause an underhood fire. Add under drive pulleys and running your accessories such as headlights, A/C or the heat and you'll likely see the lights dim and the battery gauge drop. Throw an electric cooling fan in to the mix and the stock alternator simply cant keep up. This kit includes a new complete power wire to supply your accessories with the right amount of power!
More Output Power.
Our 130amp SVE alternator is 100% brand new, no core charge, and carries a lifetime warranty. This alternator is from the internally regulated 3G series, includes the correct pulley (installed), and produces 75-100 amps at idle when used with the stock crank pulley and the installed alternator pulley. The idle output of the SVE alternator meets or exceeds the peak output of the stock alternator! The SVE alternator is rated at 130 amps continuous output, but is capable of producing 160+ amps at peak. A dyno sheet, specific to every alternator, is included with every alternator to verify these stats.
4 Gauge 3G Power Wire Kit.
This is a complete kit to upgrade the main power feed wire from the alternator to the vehicle on most Fords. The OEM wire from the alternator to the vehicle was not designed to carry the added load of higher amp alternators. Using this large (#4 Gauge) wire kit will add the safe carrying capacity needed for lengths up to 10 feet. When using our high output alternators you must upgrade this cable to retain warranty coverage. It also includes noise suppression.
- Being slightly larger then most other Ford units, minor bracket clearance/modification will be necessary.
Fox Mustangs were cursed from the factory
with a puny charging system.
The tiny 75 amp alternator
found on 1986 to 1993 five
ohs puts out a whopping 15 amps at
idle with the peak only going up to
75 amps under load at 2000 rpm.
Throw an electric fan in the mix and
your alternator can't keep up. We love
solving problems and our
130 amp SVE Alternator kits do
The two most popular kits are the basic
upgrade kit and the complete conversion
kit that includes a 4 gauge power wire
upgrade. The heart and soul of both of
these kits is the massive 130 amp alternator
thats brand new and carries a limited
lifetime warranty. Now the physical size
of the SVE 130 amp alternator will require your alternator
bracket to be modified for clearance,
but keep watching,
and I'll walking through the wiring and
modifications to the bracket needed for
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You'll want to start by removing your
First thing you want to do is disconnect
Then remove your serpentine drive belt.
Unplug your voltage regulator.
Unplug the stator.
Remove the two attaching bolts that
hold the alternator to the bracket.
Finally remove the alternator
from your Mustang.
this is the main failure point of the
stock alternator. Even though the
regulator plugs are the same, we included
a new one because the stock one is
Trim back the harness tape and wire loom.
Cut the two black with orange stripe
wires from the stock stator plug.
Cut the yellow wire and the green wire
from the regulator plug, and discard the
old regulator and stator plugs. Trim the new stator plug down and strip the
end of the wire.
Do the same to the white wire on the
center of the new regulator plug.
Connect them with the supplied butt
Because the heat shrink is built into
our connectors, all you need to do is
heat the connector to seal it after
crimping. Trim and strip the yellow wire and
the green wire on the new regulator
connector, strip the ends on the
and connect the yellow to yellow
and green to green using the supplied
Then, heat to seal.
Strip the two black with orange stripe wires
and crimp on the supplied ring terminals
and heat to seal.
Slide the 130 amp alternator
into the bracket and loosely install
the lower retaining bolt.
Rotate the alternator over and mark the
bracket where the alternator is touching
Remove the alternator and cut the bracket
along your marks. Reinstall the
alternator and check for clearance. If
it's all good, install the supplied
upper retaining bolt and nut and fully
tighten the lower retaining bolt. Wrap
the harness with quality tape like 3M super 33+.
Slide the two ring terminals onto the
power lug of the alternator and install
the retaining nut.
Connect the stater plug.
Connect the regulator plug.
Re-install the serpentine drive belt.
Our SVE 130 amp alternator
puts out about 60 amps at idle
and about a 150 amps under load at 2000 rpm!
This'll keep up with just about anything you throw at it, but because of this added
output, it is a very strong
recommendation that you support
your factory power wire
with the 4 gauge power wire upgrade.
Remove your air box.
Remove your two upper radiator
Remove the retaining nut from the
alternator power wires. Lay out your
upgrade power wire.
Slide the 4 gauge
ring eye over the alternator terminal and
reattach the nut.
Start zip tying the new power wire
running along the old power wire
Position your fuse holder right over the
and attach it using the two supplied
Remove the nut off the starter solenoid.
Connect the remaining ring terminal of
the new power wire
and re-install the nut.
Reattach your upper radiator brackets
and re-install your air box.
For all of you out there that think the
battery is not going to come out with the
fuse holder in this position, check this
Comes out with no problem!
Reconnect your battery and test operation.
For comparison sake, we tested battery
voltage with the stock alternator
with the car at idle,
with the A/C on max and high blower,
and headlights on bright. The stock
alternator was able to hold about 12.8 volts.
with the SVE 130 amp
alternator and four gauge power wire
upgrade installed, under the same
conditions, we're now producing more than
14.5 volts and that is a
So put one of these SVE alternator
kits on your fox mustang
and bring your charging system up to par.