Product Description
Need a 1-Wire Alternator for your 1989-2002 Dodge Ram pickup with the 5.9 Diesel Cummins? This unit has a maximum output of 160+Amps and will produce between 80A to 90A at idle depending on whether the engine is gas or diesel and shaft speeds. This unit will increase the charging capacity at all RPM Ranges with NO modifications. If you are putting the 5.9 Diesel powerplant into a vehicle not wired or equipped for it, this is your answer - no external regulator, no wiring. Just the main power feed wire. This unit has our lifetime warranty
Applications: 1989-2002 Dodge Ram with a 5.9L Cummins
Customer Installation Video HERE
We offer an optional W-Terminal or TACH pickup wire to this alternator. This option is only available on these “SE” Denso / dodge alternators that eliminate the PCM. When you select this option, we will provide a tach lead for connection to a diesel specific aftermarket tach. This is only available at the time of assembly and older units are not physically eligible for retrofit. The connection is simple, the wire is provided by us but does not need to be used if no tach is intended. This will not work with factory equipped tachometers or ignition-based tachometers, only a stator signal tachometer. The rotor has 12 poles, some calibration instructions ask this (tach shown is not included)
Tach image shown for illustration only, we do not sell tach or any gauges.
Some brands our customers have said work well:
Dakota Digital
Speedhut ; special order
ISSPRO R8586M
GlowShift
WARNING: California PROP65 Cancer and Reproductive Harm Notice www.P65Warnings.ca.gov
Product Videos
Custom Field
Product Reviews
54 Reviews Hide Reviews Show Reviews
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Perfect fit for 1989 W350 Cummins
Installed easily with no modifications. Taped up the unused tabs and reinstalled the factory battery wire, works perfect. Much better that replacing the external regulator all the time.
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Works well, but for almost $400 I should have gotten a sticker to add to my tool box.
Cummins swapped my 1986 K30. This alternator works amazing! Installs just like factory, the wire for the tachometer worked great too. I am unhappy that it cost almost $400 w/ shipping and I didn’t get a sticker for my tool box to add 100hp
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Alternator
Super fast shipping great product!
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Perfect charging solution
I used this on my cummins swapped f250, that had issues with overcharging and then undercharging. After installing this alternator all of my charging issues were gone. Easy to install. Functions great. It is a bit costly but in my situation it was definitely worth the cost
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Cummins 1 wire alt
Tried doing the transpo conversion to my factory alt, worked for 6 months until the battery began overcharging and split. Installed the PAperformance unit and have been happy ever since. Also allowed me to hookup my tach simply which is a big plus in a 1st gen truck.
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Alternator
Fixed the charging issue on my 89 d350
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Works great
Solved all of my overcharging problems
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Great Quality
This the 2nd time buying this alternator because I loved it so much on my other truck.
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One Wire Alternator
Perfect for my Cummins swapped Land Cruiser. Bought it and fixed all charging issues
