Building Custom Alternators Since 1970.

Hagemeister Enterprises Inc. is a family owned business!

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This 12V, 136A, alternator is a Direct replacement for your stock alternator on your Cummins engine in Dodge Ram model years: 1989-2002, with no mounting bracket modifications

DODGE CUMMINS ONE WIRE ALTERNATOR – 8902SE

Looking to simplify the charging system in your 1989-2002 Dodge Cummins 5.9?

This 12V, 136A, alternator with an 8 groove pulley is a Direct replacement for your stock alternator on the Cummins engine in your Dodge Ram truck (model years: 1989-2002).
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DODGE CUMMINS ONE WIRE ALTERNATOR (2003-2009) – 3010SE This 12V, 136A alternator is a direct replacement for your stock alternator on your Cummins engine in Dodge Ram model years: 2003-2009, with no mounting bracket modifications

DODGE CUMMINS ONE WIRE ALTERNATOR – 3010SE

Do you need a One-Wire Alternator for your 2003-2009 Dodge Ram Pickup with the 5.9 or 6.7 Cummins?

This 12V, 136A alternator is a direct replacement for your stock alternator on your Cummins engine in Dodge Ram (model years: 2003-2009).
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  • Outstanding service. Wish more were like this.

    Old Car Schmidt Avatar Old Car Schmidt
    September 5, 2025

    Very helpful answered all my questions Lots of volts for extras now with 200A one wire alternator Highly recommend Thanks Guys

    Mountain Peak Builders MT Hendrickson Avatar Mountain Peak Builders MT Hendrickson
    January 31, 2021

    Worth every penny! I tried the rest and finally found the best. The Hagemeister One wire alternator solved my charging issues. Stop wasting time and money on... read more

    Lance Ray soliday Avatar Lance Ray soliday
    January 31, 2024
  • Took my boat out on the lake and couldn't get it to start, pulled it out of the water and drove it to town and stopped by... read more

    Justin Dodge Avatar Justin Dodge
    January 31, 2021

    very good at what they do so no problems with work i have had done

    greg rollins Avatar greg rollins
    January 31, 2021

    Purchased an alternator for my 12 valve Cummins. It works perfectly! And much better than any of the several that I tried. Fast and free shipping. Customer... read more

    Jaron Avatar Jaron
    January 31, 2022
  • I've ordered 3 different 1 wire tractor altenators for 3 different tractors 2 of them being old diesel tractors I always recommend these guys to everyone working... read more

    Cody Thorpe Avatar Cody Thorpe
    January 31, 2022

    emailed about a faulty alternator I had purchased a few months earlier, and response was super fast, person was very knowledgable, they sent me out a warranty... read more

    pepe pingu Avatar pepe pingu
    January 31, 2024

    The best alternator ever for my old truck

    Kaylee Jordison Avatar Kaylee Jordison
    March 31, 2024
  • I called to ask a couple questions about their one wire Dodge cummins alternator. Had to leave a message but they returned my call in a timely... read more

    James Currier Avatar James Currier
    November 7, 2025

    I purchased the one wire conversion alternator for my 1994 Dodge 3500 Cummins and so far it has been great to not have to worry about the... read more

    Cameron Bare Avatar Cameron Bare
    January 31, 2024

    First off, I'm not a mechanic of any kind. After watching a YouTube video I was willing to attempt a starter replacement on my truck. ... read more

    fiftyshooter Avatar fiftyshooter
    May 1, 2024
  • This week the starter die in my older Yale forklift I checked a few auto part stores with no luck. Then at the recommendation of a... read more

    Total Metal Innovations Avatar Total Metal Innovations
    January 31, 2024

    Top notch service

    Ramie Halbrook Avatar Ramie Halbrook
    March 31, 2024

    Very happy to find Hagemeister Enterprises. I was having I watched there video’s on YouTube. I bought a 200 amp one wire alternator for my... read more

    Charles Ottesen Avatar Charles Ottesen
    January 31, 2022
  • Bought an alternator for my Ford model A. High quality product with 6V positive ground. I highly recommend Luke at Hagemeister Enterprises for his help. I live... read more

    Magnus Andersson Avatar Magnus Andersson
    May 31, 2024

    Rebuilt many electrical things for us

    ShylaR _ Avatar ShylaR _
    November 17, 2025

    Great guys. The old man really knows his stuff. Good prices too.

    jason jung Avatar jason jung
    January 31, 2021
  • I have used HEI to check or rebuild all my generator's, alternator's and starters for 50 years! Trucks, cars, tractors, RV's or my snake river boat HEI... read more

    Mark Borntrager Avatar Mark Borntrager
    January 31, 2021

    IT IS FIXED! I have had a charge problem with my 03 f250 7.3 for soooo long. I kept trying to figure out the charge problems. This... read more

    Craig Smith Avatar Craig Smith
    March 13, 2025

    Great locally owned small business really goes above and beyond for their customers. I've been using them since I could drive-in work on vehicles and they have... read more

    S&F Scenarios Paintball and Airsoft Field Avatar S&F Scenarios Paintball and Airsoft Field
    January 31, 2021
  • Been doing business with these people as needed for over 30 years.....most helpful....and LOCALLY OWNED AND RUN

    Bob Ramsey Avatar Bob Ramsey
    January 31, 2022

    Luke is always courteous, professional, and gets the job done the right way. Highly recommended!

    R O Avatar R O
    January 31, 2021

    Bought a gear reduction starter for my jd 630 fit great and never started better.

    Corey Trout Avatar Corey Trout
    January 31, 2023
  • I got this low RPM 6V Pos ground alternator for my Model A. It now charges at idle without having to rev up a cold engine... read more

    James Anthony Avatar James Anthony
    November 14, 2025

    awesome, I've just watched the videos but I'd say these guys know what they are doing

    Philip Johnson Avatar Philip Johnson
    January 31, 2024

    Awesome service quick and affordable good people

    Cody Garner Avatar Cody Garner
    January 31, 2022
  • Amazing customer service and one of the last true blue starter and alternator rebuilding shops! The quality of the products is far superior than what you’re going to... read more

    Brian Green Avatar Brian Green
    August 24, 2025

    I know next to nothing about cars. I was recommended to HEI after getting a battery replaced and finding out the clamp on one of the... read more

    Katherine Bateman Avatar Katherine Bateman
    January 31, 2021

    I would not take my business anywhere else!!! Larry and Luke are very knowledgeable and understand the importance of detail and performance in their workmanship. They will... read more

    Juan Acosta Avatar Juan Acosta
    October 28, 2024

Pleased with our delivery?

Larry demonstrates how our one wire alternator works on an old tractor. He explains the issues that all slow RPM engines have with charging, then he demonstrates and explains how our specialty alternator fixes these issues.
 

Larry Hagemeister is going to show you a little about the one wire alternator they build for vehicles like the 1968 Chevell and 64-72 GM.
 
 

Since it’s nearly impossible to make videos for every one wire alternator application, Larry is going to share just a few examples with you today, keeping it short and sweet. Your take away from this is…. HEI can literally make a one wire alternator out of anything. Also, you won’t find every one wire on our website, your best option is to give Larry a call and see if you can help you with your alternator issue.

Visit Us

Hagemeister Enterprises, Inc. – Lebanon (HQ)
411 Tangent St, Lebanon OR 97355
(541) 259-2262

We service and carry a large selection of electrical engine parts for most makes of heavy duty vehicles.
Riley Tractor Parts & Service
Honda Engines Parts & Service
Steiner Tractor Parts & Service
Tecumseh Parts & Service
John Deere Parts & Service
Ford Tractor and Heavy Duty Parts & Service
Sparex Heavy Duty Parts & Service
Cummins Parts & Service
KOHLER Parts & Service
Dodge Parts & Service
Briggs Stratton Parts & Service
Kawasaki Engine Parts & Service

2025 Is Our 55th Year!

2025 Marks 55 Great Years in business for Hagemeister Enterprises Inc. and we would like to say thank you to all of our customers for your business! We truly appreciate being able to provide you with the quality service you deserve. ~ Larry & Luke Hagemeister

2025 marks our Hagemeister Electric Automotive Anniversary - 55 Years of Service and Building Alternators for Your Heavy Duty Automotive and Tractors Since 1970

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