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USD 419
Part #: MG1391

Mean Green 1391 High Output Alternator

2007.5-2020 Dodge Ram 6.7L Cummins
Part #: MG1391
★★★★★ ★★★★★ 1 Reviews
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The Mean Green 1391 High Output Alternator for your 2007.5-2020 Dodge Ram 6.7L Cummins is the answer to all of your charging problems. The Mean Green Alternator provides up to 300% more power than stock. The Mean Green Alternator can charge any engine no matter what its' power requirements.

The Mean Green Alternator's tool steel rotorshaft is supported at both ends by heavy duty double sealed bearings. Even the heavy duty solid copper starter windings are sealed with high temperature insulation. That's one reason Mean Green includes a 1 year warranty at no charge on every alternator.   

Special new castings permit use of stock bracketry and bolt hole locations. Even the stock wiring harness can be used for easy plug in. Designed to out last and out perform any other unit. Great for use in ambulances, tow trucks, motorhomes or vehicles with off road lights, winches, stereo systems or other power accessories.

  • Superior Design
  • 200 Amp Output
  • 300,000 Mile Life Expectancy
  • 1 Year Unconditional Guarantee
  • Precision Balanced for Smooth Operation
  • No Core Required
Note: Image for display purposes may not be of exact product. 

Vehicle Applications

2007.5 Dodge 6.7L 24V Cummins
2008 Dodge 6.7L 24V Cummins
2009 Dodge 6.7L 24V Cummins
2010 Ram 6.7L 24V Cummins
2011 Ram 6.7L 24V Cummins
2012 Ram 6.7L 24V Cummins
2013 Ram 6.7L 24V Cummins
2014 Ram 6.7L 24V Cummins
2015 Ram 6.7L 24V Cummins
2016 Ram 6.7L 24V Cummins
2017 Ram 6.7L 24V Cummins
2018 Ram 6.7L 24V Cummins
2019 Ram 6.7L 24V Cummins
2020 Ram 6.7L 24V Cummins


  • MFG. Number 1391
  • Manufacturer Name Mean Green
  • Shipping Weight 22.00 lb.
  • Shipping Length 8 in.
  • Shipping Width 8 in.
  • Shipping Height 7 in.
  • Fuel Type Diesel
  • Warranty Yes
  • Warranty Info 1 Year
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal L0.00R3.00


★★★★★ ★★★★★
2.0/5 Stars out of 1 Reviews
Not that good.
It's not a bad alternator, but mean green rates this model at 200 amps. I had mine sent to be bench tested and it ran 160 amps cold and 170 amps hot. Not only is it basically just an ambulance alternator but they overcharge you for basically the same thing just with a different name.

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Questions and Answers

How many amp
View Staff Answer 

The MEAN GREEN 1391 HIGH OUTPUT ALTERNATOR will produce approximately 200 amps.

would you have to upgrade wiring size for this alternator? i was wondering what if any supporting modifications i would need for this alternator on my 09 6.7 cummins. I plant to have an audio system in it with a amp that is capable of around 3000 watts rms and possibly later a few led accessories, cubes and maybe a light bar.
View Staff Answer 
Upgraded wiring is not required when installing the MEAN GREEN 1391 HIGH OUTPUT ALTERNATOR.
What is the Ah output of the mean green 1391 for 2012 ram 2500 6.7
View Staff Answer 
The Mean Green 1391 High Output Alternator has 120 amps at idle, 200 amps while ruuning and a max running amps of 220.

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