Shibby Tuner Harness Plug Kit for the Ford 6.7L and 6.4L Powerstroke
Just finished an EGR and DPF delete, and now there are open connectors under the hood and beneath the truck? Good. That's exactly the right thing to be looking at, because the job isn't done until they're capped.
We get it — the tune is the exciting part, and harness caps are nobody's idea of a fun Saturday in the garage. Here's the thing, though: leave those connectors open and a clean build can turn into a truck that throws codes nobody can pin down. Let's break it down.
Which Ford Powerstroke Trucks Does the Shibby Plug Kit Fit?
The Shibby Engineering Tuner Harness Plug Kit is made for the Ford Powerstroke 6.7L and 6.4L, model years 2008 through 2026. If your Powerstroke is a Cab & Chassis truck rather than a pickup, skip this kit. Check the engine, the model year and the body style on your own truck before anything else.
| Your truck | Does the Shibby plug kit fit? | |---|---| | 2008-2026 Ford Powerstroke 6.7L or 6.4L pickup | Yes | | 2008-2026 Ford Powerstroke Cab & Chassis truck | No |
Checking the engine and model year on your truck
Start with the engine and the model year, because that's where the fit begins. The kit fits model years 2008 through 2026. Your truck either lands inside that window or it doesn't, and there's no gray area on a calendar.
Now look at what's under the hood. Both engines are covered: the 6.7L and the 6.4L.
Not sure which one you're running? Confirm it before you go any further, so you're not second-guessing yourself with the harness already exposed.
Pickup or Cab & Chassis: the body-style check
This is where a lot of guys trip up. The years match, the engine matches, and they stop checking right there.
Body style is the last box to tick, and it's the one that settles the question. Within that fit, a pickup gets the kit and a Cab & Chassis truck doesn't. So confirm how your truck left the factory.
Guessing here is the kind of mistake that only shows up once you're under the truck with a cap in your hand. Nobody needs that kind of surprise halfway through a build.
If your diesel isn't a Ford Powerstroke
Plenty of builders assume a harness cap is a harness cap, whatever's under the hood. It's an easy assumption to make, and it's the wrong one here. Unless your truck is a 2008 through 2026 Ford Powerstroke pickup, this kit is not the one for it.
That's the whole fit, start to finish. Running something else? Give us a call before you spend a cent on parts that were never meant for your truck.
What Does the Shibby Plug Kit Do After a Delete?
The Tuner Harness Plug Kit comes from Shibby Engineering. Your delete tune handles the software side, telling the ECM the EGR and DPF are gone; this kit handles the hardware side, protecting the physical connectors those systems left behind. Keep that split in mind.
The connectors a delete leaves exposed
Think about what that harness was doing before the delete. Your Exhaust Gas Recirculation (EGR) and DPF systems are out — but the connectors that ran them are still there, and they need to be sealed before moisture and road grime turn them into a corrosion problem.
So the problem you're solving here is a hardware one, not a tune one. The Tuner Harness Plug Kit for the 2008–2026 Ford 6.7 Powerstroke caps off every exposed OEM EGR and DPF (Diesel Particulate Filter) harness connector left behind after your delete.
On a competition truck, that matters more than most. Between washdowns, mud and trips on and off the trailer, an open connector gets plenty of chances to pick up something it shouldn't.
Every one of those connectors matters. Miss one and you're right back to the problem you were trying to solve.
Software side vs. hardware side
It's tempting to figure the tune covers everything. Fair enough — the tune is the part everybody talks about, so it feels like the whole job.
It's not. Run the tune alone thinking it covers both and you'll finish the delete with half the job still open under the hood. Think of it like changing the oil and rotating the tires on the same visit — separate jobs, same truck, same day, and nobody confuses one for the other.
Here's an easy way to sort it. If the problem lives in the computer, that's the tune. If you can put a finger on it, it's hardware, and that's where the caps come in.
So when the tune is loaded, don't call the truck finished just yet. The other half is the one you can actually see.
What Happens to Open Connectors If You Skip the Plug Kit?
Here's what open connectors are up against. They were built to be plugged in, not left open, and in that state they collect moisture, salt, and dirt — the same mix that corrodes metal and throws intermittent fault codes. This kit stops it before it starts. If your truck passed the fit check, the Shibby Engineering Tuner Harness Plug Kit is the step not to skip.
Moisture, salt and dirt at an open connector
Where does your truck spend its weekends? Wet pits, dusty staging lanes and muddy trails come with the territory on a competition build, and that's exactly the kind of mess an open connector collects.
You can't keep a race truck out of the mess. So make sure there's no open connector for the mess to find.
Corrosion and intermittent fault codes
Corrosion doesn't announce itself, and that's what makes it sneaky. Intermittent is the word that should get your attention, because nobody likes chasing a fault that comes and goes.
Picture it: the truck's staged, the crowd is watching, and a code you cleared last weekend is back on the dash. An open connector is exactly how you end up there.
That's corrosion and phantom fault codes waiting to happen, not a cosmetic gap under the hood. Cap the connectors before the corrosion sets in, not after one has already crusted over, because by then you're chasing fault codes instead of just capping wire.
Sealing the connectors before the problem starts
Timing matters here. Cap the connectors in the same session as the delete, not as a follow-up errand for later. The harness doesn't care how long you meant to wait — it's exposed until the caps go on.
Leaving them open is like parking with the windows down and hoping it doesn't rain. Skip the caps on install day because you're tired, and you're trusting future-you to circle back. Future-you usually doesn't, and that's how an easy job turns into a corroded connector later.
What Comes in the Shibby Plug Kit?
The Tuner Harness Plug Kit is a Shibby Engineering part. The kit includes harness caps that keep water and debris out of the vehicle harness under the hood and body of the truck, with caps for all the EGR and DPF connectors. Simple as that.
Caps for every EGR and DPF connector
The good news? You're not piecing this together from a parts bin, hoping something sort of fits.
A delete touches both systems, so both sets of connectors need a cap. Why does that matter? Because the connector you skip is always the one that comes back to bite you.
Lay everything out once the caps are out of the packaging. Knowing what you've got before you start makes the rest of the job go smoother.
Under the hood and under the body
Under the hood is the easy half. Underneath is where connectors get forgotten, because you're working on your back and it's tempting to call it good once the engine bay looks clean.
Capping the engine bay and leaving the underside open is like locking the front door and leaving the back door wide open. Take the extra time underneath, because it beats chasing codes later.
The underside is also where a race truck takes the most abuse. Mud, water and whatever the trail throws up all end up down there, so those connectors need their caps as much as anything under the hood.
Getting help matching caps to connectors
Not sure which cap belongs on which connector? That's a fair question after a delete, when the harness doesn't look the way it used to.
Call (888) 830-2588 before you start forcing anything. Have your model year, engine and body style handy, and the conversation goes a lot quicker.
There's no prize for guessing. A quick conversation now beats second-guessing every cap later.
What Should You Expect When You Install the Shibby Plug Kit?
Expect finish work, not a teardown, and take it cap by cap. Each one plugs directly into its factory location for a clean, finished look — no tools required. On a truck it fits, the Shibby Engineering Tuner Harness Plug Kit is well worth the effort.
Where the open connectors are
After you pull the EGR, DPF, and the rest of the emissions hardware off a 6.7 Powerstroke, the factory harness is left with a collection of open connectors under the hood and beneath the truck. So plan on working up top and underneath, not just one or the other.
Take stock of every open connector you can find, up top and underneath. It's a lot easier to work from a full picture than to crawl back under the truck for the one you missed.
Plugging each cap into its factory location
Every cap has a home. Match each one to its connector and plug it in, and that's the whole technique.
It's closer to snapping the lid back on a paint can than to wrenching on an engine. The payoff is the part you can see: nothing hanging loose when you pop the hood.
If a cap doesn't want to go on, stop and double-check the match rather than forcing it. Getting the match right matters more than getting it done fast.
No tools required
That's right — no tools. You won't be digging for a socket or borrowing a buddy's torque wrench for this one.
Still, go slow on the underside, because easy work still rewards a careful eye. When you think you're done, look under the hood and underneath one more time, so nothing slips past you.
Is the Shibby Plug Kit Right for Your Truck?
The Tuner Harness Plug Kit is priced from $169.00 to $249.00. It covers the Ford Powerstroke 6.7L and 6.4L, model years 2008 through 2026. For a 2008 through 2026 Ford Powerstroke pickup with the EGR and DPF deleted, it's the kit to order. Shipping is included in the price, and if you need help identifying connectors after your delete, the team is a phone call away.
| If your truck is... | What to do | Why | |---|---|---| | A 2008-2026 Ford Powerstroke 6.7L or 6.4L pickup with the EGR and DPF deleted | Order the kit ($169.00-$249.00, shipping included) | It caps every exposed EGR and DPF harness connector the delete left behind | | A 2008-2026 Ford Powerstroke Cab & Chassis truck | Skip it | It does not fit Cab & Chassis trucks | | A covered pickup, but you cannot tell which connectors are open | Call before you order | Help identifying connectors after a delete is a phone call away |
The trucks this kit is for
Let's keep this simple. If you've pulled the EGR and DPF off a 2008 through 2026 Ford Powerstroke pickup, this kit belongs on your build.
Whether it's the 6.7L or the 6.4L doesn't matter here, because both are covered. That's a lot of workhorse trucks under one kit.
If that truck gets hosed down between rounds or sits outside between events, the case for capping only gets stronger. Those are the trucks where an open connector gets tested hardest.
When to skip it
Here's the honest part. If your Powerstroke is a Cab & Chassis truck, pass on this kit, however well the years and engine line up.
And if you're not sure what you've got, don't guess. A quick call settles it.
Price and shipping
The kit runs from $169.00 to $249.00. That's real bang for your buck on a part that protects a harness you'd hate to replace.
Compared with chasing corroded connectors later, it's cheap insurance for the long haul. Cap them once and get back to the fun part of the build.
Shibby Engineering's Tuner Harness Plug Kit for the Ford Powerstroke 6.7L and 6.4L
Check the body style one more time, then get those connectors capped before the truck goes back on the trailer. Still unsure about your truck? Call first and cap second.