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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  • 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

    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

    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 called HEI looking for a starter spring for my 1942 IH TD-14 crawler. They didn't have one but Larry had one made for me. ... read more

    Vic Bunn Avatar Vic Bunn
    January 31, 2022

    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

    Top notch service

    Ramie Halbrook Avatar Ramie Halbrook
    March 31, 2024
  • I’ve been having some electrical problems with my Lincoln MKC that other local businesses were not helping me with. Hagemeisters listen to the issues I was experiencing... read more

    Mickey Yordy Avatar Mickey Yordy
    January 31, 2024

    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

    The company I work for and personally always go here for starter, alternators, and batteries. Great service, I have not come here with a problem that... read more

    Jacob Boggs Avatar Jacob Boggs
    March 31, 2024
  • 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

    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 31, 2024

    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
  • Awesome service quick and affordable good people

    Cody Garner Avatar Cody Garner
    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

    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 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

    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

    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
  • 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

    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

    Excellent customer service.

    Jeff Scott Avatar Jeff Scott
    January 31, 2021
  • Great guys. The old man really knows his stuff. Good prices too.

    jason jung Avatar jason jung
    January 31, 2021

    Great prices, great service

    Keith Logan Avatar Keith Logan
    January 31, 2022

    Great prices and knowledgeable.

    Raleigh Hayden Avatar Raleigh Hayden
    January 31, 2021
  • 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

    The best alternator ever for my old truck

    Kaylee Jordison Avatar Kaylee Jordison
    March 31, 2024

    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
  • 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

    These are the "Go To" Guys. Love the Expertise !!

    Johnny Walker Avatar Johnny Walker
    May 31, 2024

    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

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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