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400 Amp Alternator for GM 4.2 6 cylinder

400 Amp Alternator for GM 4.2 6 cylinder

$699.00
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SKU:
B8497400B
Availability:
Most alternators are custom built to order. Standard build time is 2-3 weeks. If you need an alternator sooner than that, please contact a sales associate to see if any in-stock options are available.
Weight:
17 LBS
Are you ready for the ultimate alternator upgrade to the venerable 4.2L GM engines? Look no further than our new custom billet housing 400-amp option! With 200 amps of available output just at idle this is a great and easy to install upgrade to ensure you get the most from your added components.

We make the wiring simple as well with our included H104 harness with break out wire. Simply click into the OEM alternator plug, click into the alternator and connect the long single yellow wire to a tested 12v switched source from the vehicles fuse box. This will ensure the alternator stays turned on at low vehicle RPM's and also keeps that battery light off! Add your 0-gauge power and ground wires from our alternator directly to your battery and you are good to go!

Using the same components as all of our Denso based large case 400-amp alternators, we've created the most rigid one-piece housing that ensures maximum alignment when under full load production. Alignment is key as it ensures good belt contact, belt wear and even down to internal rotor bearing life.

Please note that this alternator uses our standard high output 1.75" pulley so you will need a half-inch shorter serpentine belt. Please check our easy-to-follow belt finder link

Click here:  QUICK BELT FINDER!

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. The customer must include a copy of the original invoice when sending in their alternator in order to receive warranty service. The customer is responsible for shipping the alternator to the Mechman facility for warranty service, Mechman will pay return shipping back to the customer for all alternators under warranty. As an added service, MechMan will also service any MechMan alternator of any age or condition for the cost of parts and return shipping. (We provide the labor to repair the alternator for free!)