Electrical Connection Upgrade Kit

Part Number 72673-11




Mini 'Y' harness plugs into data port to provide 12-volt power leads and replacement data port socket.

  • For use with accessories like Road Tech™ zumo GPS Navigators, Boom!™ Audio Cruiser Amp and Speakers, Mini-Tachs, Digital Oil Pressure Gauges and Heated Grips
  • This kit is required to easily complete the installation of accessories requiring electrical power connection

Fits '14-later XL, '12-'17 Dyna® and '11-'17 Softail® models.

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It is possible to overload your motorcycle's charging system by adding too many electrical accessories. If your combine electrical accessories operating at any one time consume more electrical current than your vehicle's charging system can produce, the electrical consumption can discharge the battery and cause vehicle electrical system damage. Ask your dealer for advice about the amount of current consumed by additional electrical accessories.

  • Water Resistant

  • Warranty

    1 year limited warranty – Go to for full details
  • Sold in Unit

  • In The Box

    Wiring harness only
Electrical Connection Upgrade Kit is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from This product is great for USB charger! I bought this harness to use it for hooking up a switchable USB charger. Super easy to install! It's essentially plug and play. It comes with 3 leads that have crimp connectors with heat shrink. It has a ground, an "always on" 12 volt lead and a "switchable" lead. I hooked up my USB charger to the ground and switchable lead and it works fantastic! Price is awesome as well. I guess this can be used for other accessories as well, but I really wanted to use it for my charger as opposed to wiring it directly to the battery. That way if I leave my phone or something plugged in after I turn my bike off it won't drain the battery. Highly recommend!
Date published: 2017-09-22
Rated 5 out of 5 by from Electrical plug upgrade kit The electrical connection upgrade kit was perfect for my bike
Date published: 2017-06-29
Rated 5 out of 5 by from perfect fit Perfect fit. Makes wiring accessories easy. Fits under seat no problem.
Date published: 2015-06-28
Rated 5 out of 5 by from Great Connections I used this to provide connections for a Boom Audio system. It plugs into the harness under the seat. Much better than hacking into the electrical system. Totally and easily reversible at later date if desired. Installation took only a few minutes.
Date published: 2014-11-01
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Do I need to seal the unused connections?

My 2012 Fatboy has the single 6 pin connector that is the diag plug and aux power plug. I plan on using the switched connection on this kit to power my Garmin Zumo. Do I need to seal the unused constant power plug or can the connector remain open?
Asked by: Warren9073

Correct harness for '15 FXDB?

Is this the correct harness for 2015 FXDB? I could not locate orange/white wire on main harness, I am transferring the boom audio kit from my '07 sportster. Kit # is 76262-08A
Asked by: Ceads
Hi Ceads, Yes, this Electrical Connection Upgrade Kit, P/N 72673-11, is required to install the Boom! Audio Cruiser Amp and Speaker Kit, P/N 76262-08A, on '12-later Dyna® models. Thank you for your question.
Answered by: FXS78
Date published: 2015-08-26

How much pins there are in the gray plug?

Asked by: eliran
Hey eliran, There are 6 pins in there.
Answered by: PeteHD
Date published: 2014-08-07

Where is the 91A connector

The instructions say to locate the digital technician connector under the seat, but I have been unable to locate it there. The only connector I have found the looks like the upgrade kit will plug into is under the left power panel. This is for a 2013 FXDC is this the right connector? pic attached
Asked by: Brian20
Hi Brian20, The Connector 91A is the light gray connector on the far right side of the submitted photo. It is located behind the left hand side cover. Hope this helps!
Answered by: Wisco832
Date published: 2014-08-16

Where is the 91A connector

I have the electrical connection upgrade kit, but I have been unable to locate the 91A plug under the seat. the only plug I have been able to find that will work is in the left panel with a rubber plug. Is this the right plug? I have a 2013 FXDC. I have included a pic of the plug I am taking about.
Asked by: Brian20
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    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.