Product Description
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, no PCM, just the main power feed wire.
If you are replacing the stock alternator on your 1989-2002 Dodge Ram pickup with the 5.9 Diesel Cummins; this unit will eliminate the external regulator (or PCM) Note: when replacing the stock alternator on a factory equipped truck the check charging system/check engine light may illuminate as the PCM will be looking for a signal that no longer exists but does not affect charge voltage.
This unit and has a maximum output of 160+Amps, will produce between 80A to 90A at idle depending on whether the engine is gas or diesel and shaft speeds. This unit has our lifetime warranty.
We build Premium quality battery and crossover cables for this vehicle. The main battery charge cable options are complete cables with 200amp fuse to connect the new alternator to the main battery. The stock cable is known to be weak and under-sized, limiting the power and efficiency of the new alternator. If you want a different length email or call us, we have other options to substitute for you. The crossover cable is made to connect the B+ on dual batteries and is 80" long. The stock crossover cable is a known problem, and this resolves unequal charging dual batteries. Most customers report that in stock trucks one battery is under-charging, and the other is boiling and over-charging. Replace your crossover cable to resolve this. Using both premium cables will ensure maximum charge and efficiency with the new PA alternator.
Applications: 1989-2002 Dodge Ram with a 5.9L Cummins and anything with a 5.9 Cummins transplant
Customer Installation Video HERE 2025
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
62 Reviews Hide Reviews Show Reviews
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Alternator
Perfect fit and solved all my charging issues and fast delivery
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136 Denso Alternator
Easy to install, easy instructions. Only a few days on truck, working Great. Thanks
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136A Denso Style Alternator
Received the package in excellent condition. Fantastic packaging job. Just installed it and the alternator is charging perfectly. Was shipped in a timely fashion. I will tell all and anyone that requires an alternator. Put me on your email list. Be proud of your employees and your product. Thanks again Ken
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2nd one I've purchased
Thank you I'm very happy with my alternator, I sold the other one that i bought from you guys so I could get the one with a tach wire. So far so good I appreciate it.
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What a relief
It is so nice to finally have 14 volts all day long. I was constantly replacing voltage regulators in my old dodge. I even installed a relay before the regulator that supplied actual battery voltage. But it never solved it. So I pulled the trigger on this bad ass unit, it’s been 2 weeks and 5,000 miles with zero issue. It just works. Installation was super simple and went right in. I love this alternator. Thanks PA Performance
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Best alternator for Fummins conversions
Had this alternator on my 1999 Ford F-250 with a 94 poverty pump 12v worked flawlessly till the hot wire stud stripped out, ordered a new one with the tach wire and it’s been just as good. Waiting on a alternator tach gauge so I’ll have a working tachometer.
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Alternator is best
This was awesome I had a huge problem with the charging issue and couldn’t figure it out and this saved me from a huge rat nest of wiring and this worked great!
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Works
Original alternator stopped charging but regulator still showed voltage. Read a bunch of stuff online about the regulator in the pcm going out and using an external one but that those need to keep being replaced. So I am saving money by spending money on this Paperformance 1 wire alternator with its lifetime warranty. I never have to worry about paying for a new alternator or the voltage regulator, or getting a expensive pcm. Followed instructions in box and video on paperformance website. Took an hour to install and had voltage immediately on start up. My 12 valve Cummins is now closer to a 1 wire fire thanks to paperformance.
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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.
