How Much Does DPF Cleaning Cost? Cleaning vs. Replacement Prices in 2026

When a diesel particulate filter starts causing trouble, the first question is usually what it is going to cost. The answer depends a lot on whether the filter can be cleaned or has to be replaced—and the gap between the two is large. Here is what diesel owners and fleets are typically paying in 2026, and how to stay on the cheaper side of that gap.

The figures below are typical industry ranges reported by shops and parts suppliers, not Mountaintop Mechanics pricing. Your actual cost depends on the filter, its condition, and how the work is done.

What professional DPF cleaning costs

Professional off-truck cleaning commonly runs about $300 to $600 per filter. Where a job lands in that range depends on the size of the filter, the cleaning method, how heavily it is loaded, and whether the diesel oxidation catalyst (DOC) is serviced at the same time.

• Thermal cleaning bakes the filter at controlled temperatures to burn off remaining soot, then uses pulsed air to blow out the ash
• Aqueous or liquid cleaning flushes the filter with pressurized fluid and then dries it
• A thorough service measures the filter before and after cleaning so you can see the result, not just take it on faith

For a deeper look at what a measured cleaning involves, see our DPF cleaning process.

What is usually not in the cleaning price

• Removing and reinstalling the filter, if you bring in the truck rather than the filter itself
• New gaskets and clamps, which are often recommended whenever the filter comes off
• Diagnosis of whatever loaded the filter in the first place
• Shipping, if the filter has to be sent out to a cleaning facility

What a replacement DPF costs

A new filter typically costs about $2,000 to $8,000 for most diesel trucks, before labor. Owners of three-quarter-ton and one-ton diesel pickups commonly see $3,000 to $7,000 for an OEM replacement. Heavy-duty filters and combined DOC/DPF assemblies tend to sit at the high end or above it. In other words, a professional cleaning often costs roughly a tenth of a new filter.

When replacement is the right call

Cleaning only makes sense for a filter that is still physically sound. A filter with a cracked or melted substrate, heavy oil or coolant contamination, or flow that will not recover after cleaning needs to be replaced. A good inspection should tell you which side of that line your filter is on before you spend money. Our guide to cleaning vs. regeneration vs. replacement explains the differences.

The costs of waiting

The price tag on a cleaning is only part of the picture. A loaded filter also costs money every day it stays on the truck:

• Extra fuel from backpressure and more frequent regenerations—at today’s diesel prices that adds up quickly, as we explain in how a clean DPF lowers your fuel bill
• Downtime, tows, and lost work when the truck derates
• The risk of an overloaded filter cracking during a hot regeneration, which turns a few-hundred-dollar cleaning into a several-thousand-dollar replacement

How to keep DPF costs down

• Clean on a planned interval instead of waiting for a derate—see how often you should clean a DPF
• Fix oil consumption, injector, and EGR problems that load the filter faster
• Use the low-ash oil your engine maker specifies
• Keep a record of each cleaning and inspection
• For fleets, keep spare cleaned filters to swap in and cut downtime

Some owners look at these numbers and consider removing the filter altogether. That is not a cheaper option—it is illegal on road vehicles and can bring federal penalties. We cover why in is deleting a DPF illegal?

Mountaintop Mechanics is preparing off-truck DPF cleaning for diesel owners, shops, and fleets in White Salmon, Hood River, The Dalles, and across the Columbia River Gorge. Pricing will be published when scheduling opens—join the opening list to hear first.