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Gen5DIY specializes in plug and play harnesses for your 2014-2019 GMC Sierra.  All of our harnesses are hand built in house.  We pride ourselves in making our harness very simple to install as well as using quality components. These are truly Plug & Play products

14-19 Sierra Plug & Play Harnesses

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16-19 LED Taillight Harness
16-19 LED Taillight Harness

P&P Harness

$183.99
14-15 LED Taillight Harness
14-15 LED Taillight Harness

P&P Harness

$204.99
100 Watt 3 Ohm load resistor upgrade
100 Watt 3 Ohm load resistor upgrade

P&P Harness

$33.99
16-19 GMC HD to '16-'18 GMC 1/2 Ton LED Headlight Harness
16-19 GMC HD to '16-'18 GMC 1/2 Ton LED Headlight Harness

P&P Harness

From $180.99
14-19 (Old Body) Sierra Radar Detector Harness
14-19 (Old Body) Sierra Radar Detector Harness

P&P Harness

From $58.99
14-15 Sierra SLT to 2016-2018 1/2 Ton SLT LED Headlight Harness
14-15 Sierra SLT to 2016-2018 1/2 Ton SLT LED Headlight Harness

P&P Harness

$341.99
Radar Detector Harness for Cobra Radar Detector
Radar Detector Harness for Cobra Radar Detector

P&P Harness

$84.99
14-15 Sierra Fog Light Harness
14-15 Sierra Fog Light Harness

P&P Harness

From $159.99
14-15 Sierra NON SLT to 2016-2018 1/2 Ton SLT LED Headlight Harness
14-15 Sierra NON SLT to 2016-2018 1/2 Ton SLT LED Headlight Harness

P&P Harness

$341.99
Sale
14-15 Sierra SLE/Work Truck to SLT/Denali & HD Headlamp Harness
14-15 Sierra SLE/Work Truck to SLT/Denali & HD Headlamp Harness

P&P Harness

$389.99 $425.99
Sale
14-15 Sierra Non SLT/Denali to '16-'18 GMC Sierra 1/2 Ton HID Headlight Conversion Harness
14-15 Sierra Non SLT/Denali to '16-'18 GMC Sierra 1/2 Ton HID Headlight Conversion Harness

P&P Harness

$389.99 $425.99
14-15 Sierra SLT/Denali to '16-'18 GMC Sierra 1/2 Ton HID Headlight Harness
14-15 Sierra SLT/Denali to '16-'18 GMC Sierra 1/2 Ton HID Headlight Harness

P&P Harness

$318.99
14-15 Sierra SLT to 16-19 HD Headlight Harness
14-15 Sierra SLT to 16-19 HD Headlight Harness

P&P Harness

$318.99
14-18 Sierra Fog Light Always on Harness
14-18 Sierra Fog Light Always on Harness

P&P Harness

$133.99
16-19 GMC HD to '16-'18 GMC 1/2 Ton HID Headlight Harness
16-19 GMC HD to '16-'18 GMC 1/2 Ton HID Headlight Harness

P&P Harness

$172.99
Sale
Rapid Fire Third Brake Light Harness - Silverado/Sierra
Rapid Fire Third Brake Light Harness - Silverado/Sierra

P&P Harness

$49.99 $69.99
14-19 Sierra Fog Light High Beam Override Harness
14-19 Sierra Fog Light High Beam Override Harness

P&P Harness

From $121.99
16-18 Sierra 1500 Non-Denali to 16-18 1500 Denali Headlight Harness
16-18 Sierra 1500 Non-Denali to 16-18 1500 Denali Headlight Harness

P&P Harness

From $176.99
14-18 Sierra LED Fog Light Adapter Harness
14-18 Sierra LED Fog Light Adapter Harness

P&P Harness

$128.99
16-18 Sierra 1500 Fog Light Harness
16-18 Sierra 1500 Fog Light Harness

P&P Harness

From $159.99