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Brand TruckTok

Trucktok 2019-2024 6.7L Ram Cummins Tuner Harness Plug Kit

SKU ER-0328
Original price $135.99 - Original price $135.99
Original price
$135.99
$135.99 - $135.99
Current price $135.99

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FITMENT

  • 2019-2024 6.7L Dodge Ram Cummins 2500 3500 Turbo Diesel.
  • Note: This is for pick up only; Does NOT fit Cab & Chassis trucks. 
  • Does NOT include DEF tank harness components or SOTF tuning caps.

DESCRIPTION

Product Overview

  • When installing performance upgrades or custom tuning on 2019+ Ram 6.7L Cummins trucks, factory emissions modifications can leave unused electrical connectors exposed to harsh conditions.
  • Moisture, mud, road salt, and engine heat can cause connector corrosion over time, potentially affecting wiring reliability and electrical connections.
  • The Harness Plug Kit provides precision-molded, weather-resistant caps to seal unused factory connectors throughout the truck. It helps protect wiring from contaminants while maintaining a clean, professional OEM-style appearance.

Key Features

  • High-Temp Polymeric Material: Molded from automotive-grade, heat-resistant polymer designed to withstand severe under-hood and exhaust bay heat cycles.
  • Watertight Weatherproof Seal: High-grade internal rubber gaskets lock out rain, road salt, mud, and dust to eliminate pin corrosion.
  • Vibration-Proof Snap Locks: Engineered with factory-style locking tabs that click securely into place, ensuring they will not vibrate loose on or off-road.
  • Non-Destructive Installation: Tool-free, plug-and-play installation—no wire cutting, soldering, or messy electrical tape required. Fully reversible back to stock.

FAQ

Q: What is a Tuner Harness Plug Kit used for?

A: After modifying factory emissions components or installing custom tuning, some OEM connectors may no longer be used. These protective plugs help keep connectors sealed and maintain long-term wiring reliability.

Q: Are these plugs heat resistant?

A: Yes. These plugs are designed for demanding diesel truck environments and help protect unused connectors exposed to engine heat, vibration, moisture, and road debris.

Q: Do these plugs affect ECU operation or tuning?

A: No. These are protective caps only. They do not modify ECU signals, change tuning parameters, or affect engine calibration.

Q: Will these stop check engine lights?

A: No. These plugs do not disable sensors, clear diagnostic codes, or change ECU programming. They only protect unused electrical connectors.

Q: Why not just remove the unused connectors completely?

A: Factory connectors are part of the vehicle’s original wiring harness. Removing them requires permanent wiring modifications and can make future servicing more difficult. These plugs provide a simple, reversible way to protect unused connections.

  • 5 stars: 2 (22%)
  • 4 stars: 3 (33%)
  • 3 stars: 3 (33%)
  • 2 stars: 1 (11%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
M
Matt Wilson (United States)
Great product

Great product

H
Hank Boudreaux
2017 Ram — DPF+DEF+EGR delete, all connectors sealed

2017 Ram 2500. Full emissions delete on the 68RFE truck. This plug kit had everything — the 2016-2018 trucks have a slightly different DEF tank harness configuration from the 2013-2015 and this kit has the correct plugs. No more corrosion in the connectors under the truck. The NOx sensor plugs are deep-reach to seal the sensor port on the exhaust. Took 15 minutes to cap everything.

R
Rusty Mabrey
2018 Ram — tunes flash clean with no ghost codes

2018 Ram 3500 HO with the Aisin. After deleting I had a tuner remote in and he said the harness was throwing open-circuit codes even with the delete tune loaded. Added this plug kit and the ghost codes disappeared. The plugs have the correct termination resistance so the ECU sees a closed circuit, not an open one. Clean tune flash, no CEL, no pending codes. The plugs are worth it for the tune quality alone.

C
Colt Weatherby
2021 Ram — 2019+ generation has its own connector layout

2021 Ram 2500 with the CP4.2. The 2019+ trucks changed the DEF tank and NOx sensor connector styles from the 2016-2018 generation. This kit has the correct updated plugs. Weatherproof silicone boots on every connector and the NOx sensor plugs have the right thread pitch and seat. No leaks, no moisture, no salt intrusion after one Michigan winter.

D
Dusty Boudreaux
No more P0401 and P2457 codes after capping the sensors

2010 Ram 3500 dually. After my delete I was getting intermittent sensor rationality codes because the open connectors were picking up moisture. This plug kit eliminated all of them. Each plug has the correct resistor or termination so the ECU does not throw a circuit-open code. The plugs are labeled for which connector they go to — EGR, MAF bypass, DPF pressure, etc. No more guessing.

R
Rusty Weatherby
2008 Ram 6.7 — one plug kit, no more open connectors

2008 Ram 3500 with the 68RFE. Deleted the DPF and the EGR and had three open factory connectors hanging — EGR valve, EGR throttle, and DPF pressure sensor. This plug kit seals all of them. The plugs are weather-sealed with silicone grommets so no moisture or road salt gets into the connectors. If you ever need to reverse the delete, just unplug the kit and reconnect the factory sensors. Clean solution.

B
Beau Fontenot
2015 Ram — complete kit, nothing missing

2015 Ram 3500 HO. I counted the plugs in the kit before install — it covered the EGR valve, EGR cooler bypass, throttle valve, swirl valve, DPF differential pressure, both NOx sensors, DEF injector, and DEF tank. All OEM-style connectors with locking tabs. The silicone seals are thick and the plugs seat fully. 40K miles since install and no water intrusion, no corrosion, no codes.

C
Colt Prather
2011 Ram — kept the factory harness clean for future smog check

2011 Ram 2500. I live in a county that might get emissions testing eventually, so I wanted to keep my factory harness intact and un-cut. This plug kit caps every connector that goes to the deleted components — EGR, swirl valve, DPF sensors — without cutting a single wire. The plugs click into the factory connectors just like the sensors do. When it is time to put it back to stock, everything is ready to plug back in.

W
Waylon Hightower
2014 Ram DEF system connectors — all covered

2014 Ram 2500. The 2013+ trucks add DEF to the mix, which means more connectors to deal with when you delete — DEF injector, DEF tank heater, DEF level sensor, NOx sensors, plus the EGR and DPF stuff. This kit includes plugs for all of them. The DEF tank plugs are especially important because those connectors are exposed under the truck and will corrode fast if left open.