Ignitions and Electrical› Wiring Harnesses

JKS Manufacturing

PASS THROUGH HARNESS

$113.16

SKU: J009 AMP7640401A

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

PASS THROUGH HARNESS

MIA's Description

The AMP Research 76404-01A is a Plug-N-Play Pass-Thru Harness designed for use with AMP Research PowerStep running boards. This harness allows you to add a second OBD-II port to your vehicle.

It enables the use of multiple accessories simultaneously, including programmers and other OBD-II devices, without needing to disconnect your PowerStep running boards. This ensures that diagnostics can be performed or other accessories can be utilized while the PowerSteps remain functional.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandJKS Manufacturing
Part NumberJ009 AMP7640401A

Videos

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How to Install AMP Research PowerStep Step Bars
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2015-2016 F150 Amp Research PowerStep Plug-N-Play Conversion Kit Review & Install
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Amp Research POWER STEPS on My Silverado | Best Upgrade Ever!
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2019-2022 RAM 1500 Amp Research PowerStep Running Boards; Plug-n-Play Review & Install
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2023 Sierra at4 Silverado amp step wiring
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Ford F150 Install: AMP Research Plug-N-Play PowerStep XL with LED Lighting
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AMP Research POWERSTEP [XTREME] - Silverado Full Installation & Review -
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Amp Research Power Step override switch installation 2021 Chevrolet Silverado 1500 RST
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How to Install Amp Research Powerstep Smart Series on a 2019 Ram 1500
Ram 1500 AMP Research Power Steps Install Guide!

Ram 1500 AMP Research Power Steps Install Guide!

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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