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Rockford Fosgate RFK-HD9813

Amp installation kit — install an amplifier in select 1998-2013 Harley-Davidson® motorcycles

Item # 575KHD9813

This kit allows you to install a Rockford Fosgate TM400X4ad amp in select 1998-2013 Harleys

Find what Fits your vehicle

This kit allows you to install a Rockford Fosgate TM400X4ad amp in select 1998-2013 Harleys

Need help?
Contact our Virginia-based experts.

Item # 575KHD9813

In stock
Need help?
Contact our Virginia-based experts.

About the Rockford Fosgate RFK-HD9813

Amp up your Harley

The RKFHD9813 kit allows you to install a Rockford Fosgate Power Series TM400X4ad powersports amplifier (see Details) in select 1998-2013 Harley-Davidson Road Glide®, Street Glide®, and Electra Glide® motorcycles. The kit includes everything you need to install your new amp, from a mounting plate and wiring harnesses right down to the screws. Add some good speakers and you'll be ready to rock!

Product highlights:

  • install a Rockford Fosgate compact-chassis amplifier in select 1998-2013 Harleys
  • works with 1998-2013 Road Glide, Street Glide, and Electra Glide motorcycles
  • designed for the Rockford Fosgate TM400X4ad amp (sold separately)
  • includes mounting plate, heatsink, and wiring kit
  • everything you need to install your new amp
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # RFK-HD9813

What's in the box:

  • Amplifier mounting plate/heat sink
  • 3 Support brackets
  • Power cable assembly with 5' 8-gauge power/ground wire (in-line fuse holder on power wire with 60A Maxi fuse inserted) and 15" remote wire
  • 10' Rear cable assembly
  • 33" Front output cable
  • 23" Front input cable
  • 35-Pin Plug w/ 22" rear speaker harness
  • Two 4" amp output Y-adapter harnesses
  • Eight 8" wire-ties
  • Two 3/4" threaded posts
  • Eight 10mm counter-sunk screws
  • Four 8mm screws
  • Instruction manual

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More details on the Rockford Fosgate RFK-HD9813

Mark G.

Product Research


Overview: The RFK-HD9813 amplifier wiring kit is designed to install select Rockford Fosgate Punch and Power Series powersports amplifiers, including the TM400X4ad 4-channel Power marine amplifier (sold separately), into select 1998-2013 Harley-Davidson Road Glide, Street Glide, and Electra Glide motorcycles. The amplifier wiring kit includes pre-cut, pre-loomed 100% Pure Crystal-Oxygen Free Copper (PC-OFC) wire, meeting or exceeding American Wire Gauge (AWG) requirements. It includes 8-gauge power and ground wires for running to the battery, as well as all input and output harnesses for running audio signals into the amp and out to speaker locations in the front fairing and rear saddle-bags (speakers sold separately). Each of the included wiring harnesses is terminated with Molex connectors designed to plug directly into a TM400X4ad amplifier. The battery power wire includes an inline fuse holder with installed 60A Maxi fuse. The amplifier heat sink includes pre-drilled and tapped screw holes for mounting the TM400Xad as well as select Punch, and Power 2-channel and 4-channel compact amplifiers.

Note: The included amplifier wiring is designed to be a direct fit for a TM400X4ad amplifier. If installing a different model amp, the pre-installed wiring Molex connectors will need to be removed and all wiring hardwired to the new amp.


Year Make Model Fairing
2006-2013 Harley-Davidson Street Glide Ultra Bat Wing
2006-2013 Harley-Davidson Street Glide Bat Wing
1998-2013 Harley-Davidson Electra Glide Bat Wing
1998-2013 Harley-Davidson Road Glide Ultra Shark Nose
1998-2013 Harley-Davidson Road Glide Shark Nose

Note: The included harnesses will often not plug directly into the factory wiring of CVO and Screamin' Eagle versions, and splicing is necessary.

Punch & Power Screw Hole Dimensions (center-hole to center-hole):

  • Punch: 2.47" (W) x 6.24" (L)
  • Power:
    • 2-Channel: 0.92" (W) x 6.56" (L)
    • 4-Channel: 0.92" (W) x 7.87" (L)

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Customer Q&A

3 questions already asked

Will this work with the st600 amp?
[ Cody  Jun 29, 2021 ]
1 answer
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
[ Calvin  Jul 14, 2021 ]  Staff

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