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H104 Indicator light harness for 1996-2004 GM Truck (oval)

H104 Indicator light harness for 1996-2004 GM Truck (oval)

$29.00
star_rate star_rate star_rate star_rate star_rate mode_comment 5 reviews edit Write a Review
SKU:
H104
Weight:
1 LBS
Bulk Pricing:
Buy in bulk and save
Uses:
No wire cutting or splicing T-harness for 12v source needed Mechman Alternators
Applications:
Most 1996-2004 GM based vehicles using 250 amp or larger alternators
Notes (1):
Included with all Mechman alternators when applicable
Notes (2):
Can be modified / cut down to function like our P101 harness for custom applications
This adapter harness is supplied with all MechMan hairpin alternators for 1996-2004 GM Trucks and SUV's. It accepts oval GM alternator plugs and then plugs into your vehicles harness.

The longer yellow wire gets connected to an ignition switched 12V+ source to turn the alternator on and off with the key, and also prevents the "check battery" light from coming on in the dash. This harness can also be modified and hardwired to ignition 12V+ for engine swap applications where the stock alternator harness is not available.

This harness is included with all Mechman alternators that need this to function properly right out of the box. Not using this harness in the 6 phase style alternators we offer will generally create a low RPM no charge/battery light. If we include the harness, then you need the harness!

5 Reviews

  • Alternator harness
    star_rate star_rate star_rate star_rate star_rate 5

    Posted by Walter on 21st Mar 2024

    It works as it should and they got it to me fast

  • Works as described.
    star_rate star_rate star_rate star_rate star_rate 5

    Posted by Matt on 29th Aug 2023

    Simple installation process to upgrade my standard alternator to 400amp

  • H104l
    star_rate star_rate star_rate star_rate star_rate 5

    Posted by Peter on 13th Aug 2023

    Used this for a CES alternator that when installed made my battery light flash on and off , installed this harness plug , tapped into fuse box with an add a fuse , battery light went off and I'm goo to go ! Did exactly what it was supposed to do , just wish I had bought the harness that bumps voltage up a volt , but am going to buy that now

  • Hi
    star_rate star_rate star_rate star_rate star_rate 5

    Posted by Jorge I Perez on 2nd Jul 2021

    Good

  • H104 indicator light harness
    star_rate star_rate star_rate star_rate star_rate 5

    Posted by Chadley Witt on 31st Mar 2021

    Fixed my problem right up battery light went off an have been excellent help an service with me! I will be contacting them to get a couple more alternator's for future projects