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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  • 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

    The best alternator ever for my old truck

    Kaylee Jordison Avatar Kaylee Jordison
    March 31, 2024

    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
  • They were more than happy to help me with what I needed and if they didn't have it they let me know where I could find it... read more

    Ron Baker Avatar Ron Baker
    January 31, 2022

    We have a few vintage travel trailers, and as is true with many classics, their parts and systems wear out and can be hard to repair or... read more

    Thomas Moore Avatar Thomas Moore
    January 31, 2023

    Great prices, great service

    Keith Logan Avatar Keith Logan
    January 31, 2022
  • Bought a gear reduction starter for my jd 630 fit great and never started better.

    Corey Trout Avatar Corey Trout
    January 31, 2023

    Bought the Audible Digital Volt Meter for my 04 F350 Harley Davidson and I am very satisfied. It's absolutely a must have. Thank you Luke

    Michael Byrd Avatar Michael Byrd
    January 31, 2023

    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'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

    My car was saying it was time for a new battery. They were quick to get me in and out AND let me know I needed a... read more

    Chandra Oxford Avatar Chandra Oxford
    January 31, 2022

    Hi I bought this 12 v alternator for my Model A . Sounded that they charge at low RPMs the Model. A RPM is suppose to... read more

    Stephen Cohen Avatar Stephen Cohen
    August 31, 2024
  • My alternator failed on my Ford Powerstroke and the team at HEI rushed a new and improved version of the 200A to me so I could get... read more

    John Barbieri Avatar John Barbieri
    February 4, 2025

    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

    I can't speak highly enough about the customer service Luke provided. I was having issues with my 3rd gen Cummins alternator/voltage regulator so I purchased a... read more

    Karl Neu Avatar Karl Neu
    December 2, 2024
  • Overall, so far, so good. Ran into a couple glitches along the way which might be good to add to your instructions. #1: Do not use a... read more

    Huskies Go Avatar Huskies Go
    January 31, 2023

    By far the best Cummins 1-wire alternator . Customer service is exceptional. Simply Can't beat Hagemeister Enterprises. Highly Recommended.

    Mark Goodacre Avatar Mark Goodacre
    September 30, 2024

    Great prices and knowledgeable.

    Raleigh Hayden Avatar Raleigh Hayden
    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

    Had many problems with buying voltage regulators for my 54 Chevy truck that work until I had Larry at Hagemeister make me a custom 6v regulator... read more

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

    jason jung Avatar jason jung
    January 31, 2021

    I had a problem with an alternator I purchased. After talking on the phone to do some long distance troubleshooting (which will be helpful) they’ve agreed to... read more

    Wayne Addams Avatar Wayne Addams
    January 31, 2023

    The Hagemeisters are all great people to deal with and I depend on them for anything in automotive electrical. They are rebuilders of starters and generators, and... read more

    Jerry Kassis Avatar Jerry Kassis
    January 31, 2024
  • 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

    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

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

    greg rollins Avatar greg rollins
    January 31, 2021

    Love the customer service here

    francis tice Avatar francis tice
    January 31, 2024

    Awesome service quick and affordable good people

    Cody Garner Avatar Cody Garner
    January 31, 2022

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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