Tuner Harness Plug Kit for 6.7 Powerstroke Pickups: Fitment, Price and Install

What Is the Shibby Tuner Harness Plug Kit?

Here's what the Shibby Engineering Tuner Harness Plug Kit does. The kit caps off every exposed OEM EGR and DPF harness connector left behind after a delete.^[1] 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.^[1]

A lot of guys figure the delete is finished the moment the old hardware hits the floor. Here's the thing — the parts leave, but the connectors that ran them are still there.^[1] Capping those off is what this kit does.^[1]

What a harness connector does on the truck

Think of the wiring harness as your truck's nervous system. Connectors join control units, sensors and actuators to the cables of the vehicle electrical system.^[2] That makes each connector the point where a cable meets a sensor, an actuator or a control unit.^[2] Each of them was built to be plugged in.^[1]

After the delete, what stays behind is a collection of open connectors under the hood and beneath the truck.^[1] You can't un-see it once you know it's there. And once you've seen it, you'll want it dealt with before the truck goes anywhere near mud.

What "capping off" means in practice

Capping off is exactly what it sounds like. A cap goes on each EGR and DPF connector and keeps water and debris out of the vehicle harness.^[1] No electrical tape that peels loose after the first pressure wash, no zip-tied sandwich bags, no hoping for the best.

It's a small job that closes out a big one. Do it right, then move on to the next item on the build sheet.

Where Do the Leftover EGR and DPF Connectors Come From?

Some 2017-2019 Super Duty 6.7L trucks built from mid-May 2017 on may show a lit malfunction indicator lamp and set code P2002.^[4] The service procedure for that condition is to replace the DPF.^[4] Diesel particulate filters are devices that physically capture diesel particulates through filtration.^[3] The store's help centre carries EGR delete instructions for the 2011-2014 6.7L Powerstroke. Pulling that hardware is what leaves the harness connectors open.^[1]

Let's break it down, because where each system lived decides where its leftover wiring ends up. Some of it you'll reach leaning over the fender. The rest means a creeper and a flashlight.

The particulate filter on the 6.7L Powerstroke

The DPF is the part most guys picture first when they hear the word delete. Pulling it feels like the finish line. It isn't. The connectors that ran it are still there.^[1]

Think of it like hauling an old stove out of the shop kitchen. The stove is gone, but the hookup behind it is still sticking out of the wall, waiting for something to plug into it. Nobody leaves it like that for long.

The EGR side of the job

The EGR side is a job of its own, with its own set of steps. The first step in those instructions is to verify you have all the parts. That habit is worth stealing for the plug kit, too, because knowing what's in the box before you crawl under anything saves you a second trip.

The good news? The kit has caps for all the EGR and DPF connectors.^[1]

Under the hood versus beneath the truck

Once the delete is done, the harness is left with open connectors under the hood and beneath the truck.^[1] That split matters when you plan the day.

Plan for both before you start, and you won't be crawling out partway through to hunt for a light. Lay a sheet of cardboard under the truck first. It keeps the grit out of your eyes and gives you somewhere clean to set things down.

Why Seal Connectors You No Longer Use?

Factory EGR and DPF connectors were built to be plugged in, and left open they collect moisture, salt and dirt.^[1] That mix corrodes metal and throws intermittent fault codes.^[1] The connectors that ran those systems are still there, and they need to be sealed.^[1] Besides its combustion functions, the electronic control unit includes diagnostics functions.^[2]

We get it — a dangling connector doesn't look like a problem. It isn't leaking, it isn't smoking, and the truck still fires up like it did yesterday. That's exactly why it gets ignored until it bites.

What moisture, salt and dirt do to an open pin

An open connector is a cup with no lid. Mud off the trail, spray from the wash bay, water running down the frame while the truck sits on the trailer between rounds: all of it has somewhere to land, and it lands right on the metal. Moisture, salt and dirt make the mix that corrodes metal.^[1]

Pressure washing is the sneaky one. You're cleaning the truck after a muddy weekend, and you're also blasting water straight at every open connector underneath it.

Why corrosion shows up as intermittent faults

Intermittent is the word that should worry you. A code that shows up every time is a code you can chase down. A code that comes and goes has you under the truck with a test light, chasing a ghost that never shows while you're looking for it.

Your control unit includes diagnostics functions.^[2] You're the one who has to find the problem. That's a lousy way to spend the night before an event.

When to cap them during the job

Cap them the same day the parts come off, while every connector is still in plain sight and you still remember what each one fed. Keep the caps with the rest of the delete parts so nothing gets left for later. Don't let the truck sit on the trailer between events with the plugs hanging.

The point is to beat the corrosion, not clean up after it. This kit stops it before it starts.^[1]

Which 6.7 Powerstroke Trucks Does the Plug Kit Fit?

The kit fits the 2008–2026 Powerstroke 6.7L pickup models only and does not fit Cab & Chassis trucks.^[1] Ford launched a second generation 6.7 L Power Stroke for Super Duty pickups.^[5] The new engine was to feature across all Super Duty models from F-250 to F-450, with the first 2015 pickup trucks available in Spring 2014.^[5] Body style is the check that decides this one.

Which side of the line does your truck sit on? Here's the whole picture at a glance.

Pickup versus Cab & Chassis

Body style is the check you can't skip. Running a Cab & Chassis 6.7 Powerstroke? If your truck is a Cab & Chassis, this kit is not the one for you.^[1] This is a pickup-only kit.^[1]

It's not just a badge on the tailgate, either. The service bulletin lists the 2017-2019 F-Super Duty chassis cab and the 2017-2019 F-Super Duty DRW pickup as separate vehicles.^[6]

Not sure whether your truck counts as a pickup or a Cab & Chassis? Settle that before you go any further. A quick call beats a wrong guess.

Where the 6.7L generations split

That second generation raised the output.^[5] The new Power Stroke V8 delivers 440 hp and 860 lb-ft of torque, up from 400 hp and 800 lb-ft in the previous generation of the engine.^[5]

That's a serious step up for a workhorse that was already pulling hard. For this kit, though, the generation under your hood doesn't change the body-style check. Pickup is the word that matters.

Checking your own truck first

Confirm the model year, the engine and the body style on your own truck before you start. Don't go by memory or by what the last owner told you. If any of the three is in doubt, settle it before the caps show up.

What Comes in the Plug Kit?

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.^[1] If you want the cap count confirmed against your truck before you start, call and ask.

Caps for the EGR connectors

A lot of guys picture a plug kit as a bag of one-size-fits-most caps you jam on and hope. That's not what this is. Each cap plugs into its own factory location.^[1]

On the EGR side, that means you're not guessing which cap goes where with greasy gloves on. You want a cap that goes where it goes, not one you have to fiddle into place.

Caps for the DPF connectors

You get caps for the EGR connectors and caps for the DPF connectors in the same kit.^[1] That matters when you're halfway through the job and the last thing you want is a second trip for parts.

Why fitted caps beat tape

Tape and universal caps have exactly one thing going for them: they're already in your drawer. That's about it. A cap that plugs directly into its factory location leaves a clean, finished look.^[1]

Tape just leaves a lump. When you're done, the engine bay should look like the job was planned, not patched.

Confirming the count before you start

We won't guess at a cap count for your truck, and you shouldn't either. When the box shows up, lay every cap out on the bench and match it against the open connectors you counted earlier.

If something doesn't add up, call before you crawl under. It's a lot easier to sort out on the bench than on your back.

How Much Does the Plug Kit Cost?

The Shibby Tuner Harness Plug Kit is priced from $169.00 to $249.00. Shipping is included in the price.^[1] Because the price runs as a range, confirm the figure for your selection on the product page before checkout. The caps cover the EGR and DPF connectors a delete leaves behind.^[1]

What the price range covers

A range just means the figure on your screen depends on what you pick. We won't guess which end lands there; the product page shows it.

Think about where your money already went on this build. The parts are off, the tune is loaded, and the truck runs the way you want it to. Set the cost of the caps next to hours spent chasing a ghost code, and it's real bang for your buck.

If you're pricing out the whole delete, put the caps on the list now. Finding out you need them with the truck already up on stands is no fun.

What shipping adds

Nothing on top.^[1] Shipping is already included in the price.^[1] That's a number you don't have to chase.

How Do You Install the Plug Kit?

Each cap plugs directly into its factory location for a clean, finished look.^[1] No tools are required to fit the caps.^[1] The open connectors sit under the hood and beneath the truck.^[1] If you need help identifying connectors after your delete, the team is a phone call away.^[1]

Buckle up — this is the easy part. You won't need a wrench.^[1]

Before you start: what to have on hand

You will want a good flashlight, a creeper and a clean rag. Let the truck cool down first, since part of this job happens underneath it.

Then do a walk-around and count the open connectors you can see from up top and from underneath. Knowing your number before you start means you'll know when you're finished.

Capping the connectors under the hood

Start up top. It's the comfortable part of the job: good light, no crawling, no gravel down your collar.

Wipe each connector, seat its cap fully in the factory location, and give it a light tug to make sure it stays put. Work across the engine bay from one side to the other so nothing gets skipped.

Capping the connectors beneath the truck

Then go underneath. That's where the rest of the open connectors sit.^[1]

Slide in on the creeper and work your way from front to back, capping each one the same way you did up top. A creeper beats lying in the gravel every time.

When you cannot tell which connector is which

Don't force anything. If a cap doesn't want to seat, stop and figure out which connector you're actually holding. Snap a clear photo of anything you can't identify before you call; it makes the conversation a lot faster.

Mistakes that send you back under the truck

The classic is capping everything you can see from up top and calling it done. The connectors underneath are exactly the ones you can't afford to miss.

The other is leaning on a cap that doesn't want to go on. If you have to force it, stop and check you've matched the right cap to the right connector. And don't skip the wipe-down, because sealing grit in is not the same as keeping it out.

After you finish: the last walk-around

Count your caps against your connectors one more time. Every open end should be sealed, and nothing should be left hanging loose. Check them again after the next wash or the next event, and you'll catch a loose one before the weather does.

How Does the Plug Kit Work With Your Delete Tune?

A delete tune handles the software side, telling the ECM the EGR and DPF are gone.^[1] The kit handles the hardware side, protecting the physical connectors those systems left behind.^[1] The electronic engine control unit is the central controller and heart of the engine management system.^[2] That control unit is also able to control the exhaust system.^[2]

Think of the job as a brain and a body. The tune talks to the brain. The caps look after the body.

What the tune does

The electronic engine control unit controls the fuel supply, air management, fuel injection and ignition.^[2] It's the heart of the engine management system.^[2] Your delete tune is how you tell it the EGR and DPF are gone.^[1]

What the caps do

The caps keep water and debris out of the vehicle harness at every EGR and DPF connector.^[1] This kit handles the hardware side.^[1] So don't expect a cap to do a tune's job, or a tune to do a cap's.

Why you want both

Tune only, and those connectors sit open to everything the truck kicks up. Caps only, and the software side of the job is still waiting on you. Do both, and the delete is done right, for the long haul.

Should You Buy the Shibby Tuner Harness Plug Kit for Your 6.7 Powerstroke?

Choose the Shibby Tuner Harness Plug Kit for a 6.7 Powerstroke pickup once the EGR and DPF are off. The kit fits the 2008–2026 Powerstroke 6.7L pickup models only.^[1] It does not fit Cab & Chassis trucks.^[1] The price runs $169.00 to $249.00. Shipping is already in that figure.^[1] Each cap plugs directly into its factory location with no tools required.^[1]

Buy it if your truck matches

Ford pickup with the 6.7L Powerstroke? EGR and DPF already off, with a delete tune handling the software side? If that's a yes across the board, the Shibby Tuner Harness Plug Kit is the one for your 2008–2026 6.7L Powerstroke pickup. It's the last step that keeps the whole job clean.

Skip it if your truck does not

If you're running a Cab & Chassis, skip this one.^[1] Still running the EGR and DPF? The kit caps off the harness connectors left behind after your delete.^[1] Come back to it the day the parts come off.

What to have ready before you call

If you do pick up the phone, have your model year, your engine and your body style in front of you. Those are the same checks this whole guide runs on. With them in hand, the call takes no time at all.