Mechman 1988-2002 Dodge Truck 5.9L Cummins Turbo Diesel Alternator


This 240A unit fits both Gen 1 and Gen 2 Dodge Diesel Trucks with the 5.9L Cummins Turbo Diesel engines.

240A Units make 240A at Cruise and 120A at Idle!  This unit ships to you with a smaller 1.75″ diameter pulley and requires a shorter belt to achieve proper belt tension.  Offered in a Natural finish.  Cable upgrade kits offered below.

Full Specifications provided below.  Includes a Two-Year Manufacturer Warranty, also outlined below.


The S series of 6 phase alternators offers incredible output in a compact and durable package.  Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding airflow ensure long service life, even in severe conditions.

The 240 amp model offers the best balance between peak output, and output at engine idle RPM.

Belt Suggestions

For Gen 2 2500 and 3500 trucks, Mechman recommends the following:
Trucks with A/C – Dayco 5080805
Trucks without A/C – Dayco 5080650

2 Year Performance Guarantee

The MechMan two year warranty applies to Mechman Alternators sold ON or AFTER 07/13/2011. This limited two year warranty allows the customer to return his or her MechMan alternator for repair for a full two years after the alternator purchase date. This warranty does not cover other parts or equipment on the vehicle, and does not cover labor for removal or installation of the alternator. This warranty is VOID if the MechMan alternator is modified, physically abused, misused, improperly installed, or is not used in the application for which it was designed. The MechMan two year warranty is non-transferrable.



  1. 5 out of 5

    Pieter Meinster (verified owner)

    Can’t say too much about the product, it’s an alternator and it does it’s job. Got the 240 Amp for my 99 Dodge Ram 2500 to replace a stock remanufactured unit. My review is for C.E. Auto Electric; Tony is great! Customer service is phenomenal, Tony will respond promptly to any questions and goes above and beyond to provide support. Shipping is quick and affordable. I also got the 3/0 AWG battery cabling kit from him and I couldn’t be happier!

    I wish more people would have this level of dedication and commitment to the products they sell and their customers.

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