Diesel Filter Bung Repair
DPF Bung Repair & Replacement for Lansing Area Diesel Fleets
A cracked or stripped sensor bung doesn't mean you need a new filter.
We repair and replace DPF bungs by hand in Webberville, with most units back within 24 hours.
Why Choose Us
Why DPF Bung Replacement Matters
The bung is the small welded fitting on your filter housing that holds the pressure sensor in place. It takes a beating from heat cycles, road vibration, and years of exhaust pressure, and it is usually the first thing to crack or strip out long before the filter media itself wears out.
When a bung fails, you get false pressure readings, derate codes, or a sensor that will not seal no matter how many times you tighten it. A lot of shops will tell you the whole housing needs replacing at that point, but a proper diesel filter bung repair almost always saves the unit.
We handle dpf sensor bung repair and dpf sensor bung replacement on trucks, tractors, school buses, and heavy equipment across mid-Michigan. This kind of diesel particulate filter repair keeps the housing you already own in service instead of sending it to the scrap pile. If the housing is sound and the filter media is still good, there is rarely a reason to spend money on a full replacement.
Our Bung Repair Process
How We Handle DPF Bung Repair
Every bung job starts with a full inspection, not a guess based on a part number or a fault code. Whether it is a straightforward exhaust sensor bung repair or a more involved weld job, we want to see exactly what is cracked, stripped, or leaking before we touch a welder.
Inspect the housing and bung. We check every weld point, the sensor threads, and the surrounding housing for cracks, pitting, or heat damage before deciding on a repair path.
Remove the damaged bung. The failed fitting gets cut out cleanly so the surrounding housing is not weakened or warped in the process.
Weld and replace the bung. We install a new sensor bung, matched to your filter's housing and sensor port, and weld it in with the same care we'd put into our own truck.
Pressure test and verify. Once the repair is done, we pressure test the housing and confirm the sensor seats and seals correctly before the filter goes anywhere near your engine bay.
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Step 1: Inspect the Housing and Bung
We check every weld point, sensor thread, and section of housing metal for cracks, pitting, or heat stress before recommending a repair.
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Step 2: Remove the Damaged Bung
The cracked or stripped fitting gets cut out carefully so we are not weakening the housing metal around it.
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Step 3: Weld and Replace the Bung
A new bung goes in, matched to your sensor's thread size and port location, welded by hand the same way we would do it on our own equipment.
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Step 4: Pressure Test and Verify
Before your filter leaves our shop, we pressure test the repair and confirm the sensor seats and seals properly.
Know the Warning Signs
Signs Your Filter Needs DPF Bung Repair
A failing bung often looks like a sensor problem at first, which is why a lot of owners end up replacing sensors two or three times before anyone checks the bung itself. If you have already swapped sensors and the code keeps coming back, the bung is probably the real issue.
Here are the signs we see most often before a truck or piece of equipment comes in for bung work:
- A pressure sensor that will not thread in snug or keeps backing out
- Visible cracking, rust, or weld failure around the sensor port
- Exhaust soot or oil residue leaking from around the bung
- Repeat derate codes even after the sensor has been replaced
- A whistling or hissing sound near the filter housing under load
- Antifreeze soaked dpf cleaning or oil contaminated dpf cleaning jobs where the housing also shows bung damage
If any of that sounds familiar, call us before you order a new sensor. A quick inspection tells us fast whether it is a bung issue, and most dpf repair work costs a fraction of what a replacement filter or housing runs.
Why Choose Us
Why Lansing Area Owners Trust Us With Bung Work
Bung repair is detail work. It takes a steady hand, a good eye, and someone who has done it enough times to know when a housing is salvageable and when it is not. That is the whole reason customers from Lansing to Detroit keep sending us their filters instead of ordering replacement dpf filters outright.
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Hands-On, Every Time
No automated systems and no outsourced welding. Holly and the team personally inspect, repair, and test every bung that comes through the shop.
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Fast Turnaround
Most bung repairs and full dpf replacement filters jobs are back in your hands within 24 hours, because downtime costs you money whether you run one truck or a fleet of them.
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Straight Answers, No Upsell
We will tell you honestly when a bung repair makes sense and when the housing is too far gone to save. You will never get talked into a replacement you do not need.
Our Services
Other Diesel Filter Services We Offer
Bung repair is one piece of keeping your emissions system running right. We also handle the full range of dpf cleaner and dpf service work that mid-Michigan diesel owners and fleet managers rely on.
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DPF Cleaning
Our core service restores clogged diesel particulate filters without the cost of a brand new unit.
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DOC Cleaning
We clean diesel oxidation catalyst filters by hand to clear derate codes and restore lost power.
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DPF & DOC Combination Cleaning
When both filters are due, we clean them together and save you a second trip to the shop.
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Domestic Light Truck DPF Cleaning
Hand-cleaning for Ford, Chevy, and Dodge diesel pickups that keeps them off the dealership waitlist.
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Oil & Antifreeze-Soaked Filter Cleaning
Specialized treatment for filters contaminated with oil or coolant, which standard cleaning cannot fix.
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Hydrocleaning
Our deep hydrocleaning process flushes ash and soot that a blow-and-bake cleaning leaves behind.
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Fleet Spare Filter Services
Keep spare filters on hand so your trucks never sit idle waiting on a cleaning turnaround.
Repeat Customers Say It Best
Trusted Across Mid-Michigan for DPF Service
DPF Solutions on Google
Questions about your filter? Call the shop, or find us on Facebook.
Common Questions
DPF Bung Repair Questions We Hear Often
How long does DPF bung repair and replacement take?
Most dpf bung replacement jobs are finished within 24 hours of us receiving the filter. If the housing needs extra welding or the sensor port is badly damaged, we will call you with an honest timeline before starting.
Is bung repair cheaper than buying a new filter?
In almost every case, yes. A diesel filter bung repair costs a fraction of a replacement filter or housing, since the only damaged part is the small welded fitting, not the filter media itself.
What vehicles and equipment do you handle for truck DPF service?
We service domestic diesel pickups, semis, school buses, tractors, and heavy equipment like cat rock trucks. If it runs on diesel and has a DPF or DOC, we can inspect and repair the bung.
Can a stripped sensor bung cause a derate code even with a new sensor?
Yes, and it is one of the most common mistakes we see. A stripped or cracked bung will keep throwing codes no matter how many new sensors go in, because the sensor cannot seal properly against damaged threads or metal.
Get Your Filter's Bung Repaired the Right Way
Do not pay for a new filter when the fix is a simple bung repair. Call DPF Solutions, tell us what your sensor is doing, and we will have your housing inspected, repaired, and back in your hands within 24 hours.
Or call or text us directly at (517) 515-4431