Cummins DPF Filters

A Cummins DPF filter is a build-specific aftertreatment device, not a shelf part. Whether you clean it or replace it — and which unit your engine takes — depends on the engine build record, the emissions stage, and whether the unit is a DOC, a DPF, or a combined assembly. Unlike a fuel or oil filter, a DPF sits in the exhaust aftertreatment, and getting it wrong is expensive. This page covers Cummins DPF filters and DPF kits for generator sets, plant, trucks, and fleet duty.

DOC / DPF / Combined
Clean or Replace
Emissions Stage
Engine Build Record
DPF Kits
Aftertreatment Filtration

Request a DPF Filter Quote →

Cummins DPF filter and aftertreatment product range

Browse Cummins DPF Kits

Two DPF kit references currently listed. Confirm the engine build, emissions stage and complete number before ordering — a kit number alone does not establish fitment.

Cummins DPF Kit

5579357 DPF Kit

Cummins DPF Kit

5579292 DPF Kit

What This Page Covers — and What It Does Not

This page covers diesel particulate filters and DPF kits for Cummins applications, plus the clean-or-replace decision and the DOC/DPF distinction. DEF aftertreatment sits on the Cummins DEF filters page; the engine-service categories sit under the Cummins filter range.

What This Page Covers

Diesel particulate filters (DPF)
DPF kits and service assemblies
DOC / DPF / combined distinction
Clean-or-replace decision
Emissions-stage matching
Build-specific part numbers

What This Page Does Not Cover

DEF aftertreatment is covered on a separate page; the engine-service categories sit under the Cummins filter range. This is not a stock list, a price list, or a fitment certificate. Specific DPF kit pages follow once each number is verified.

Scope note: Aftertreatment filtration for Cummins-powered equipment. Cummins is an engine application and original reference name only.

Confirm the
Engine Build

Confirm the engine build, emissions stage, complete part number, and installed position before ordering. With the build and the old unit’s number, request a DPF filter quote.

What a Diesel Particulate Filter Does: DOC, DPF, or Combined

A diesel particulate filter traps soot from the exhaust. Regeneration burns the soot; the incombustible ash left behind accumulates and eventually forces cleaning or replacement. The three device forms are where most confusion starts.

Device	Job	What to Confirm	When It Appears
DOC	Oxidises the exhaust upstream of the DPF.	Whether the unit is DOC-only or packaged with the DPF.	Often combined with the DPF in one can.
DPF	Traps soot for regeneration.	Complete number, emissions stage, build.	Standalone, or the downstream half of a combined can.
DOC+DPF combined	Both jobs in one serviceable unit.	That the “kit” is the assembly, not a bare DPF.	Common on Tier 4 / EPA 2010+ builds.

The word “filter” hides the difference: a buyer asking for a “DPF filter” may actually need a DOC+DPF assembly, which carries a different number and value.

Clean It or Replace It? The Decision Comes First

The wrong decision here is the most expensive mistake on this page. A unit that only needed cleaning is money spent early; a cracked unit that was cleaned will fail again. Make the call on condition, not on price.

Symptom or Finding	Likely Condition	Action
High ash load, substrate intact.	Ash-loaded but sound.	Candidate for cleaning — confirm against the build.
Cracked, melted, or damaged substrate.	Failed unit.	Replace — do not attempt to clean.
Repeated derate with unknown history.	Unconfirmed.	Diagnose before ordering; the code alone does not name the part.
Missing or past serviceable life.	Replacement decision.	Quote a replacement against the build.

We are not a cleaning service — we quote the replacement or the confirmed unit. What separates a sound unit from a failed one is a stated maker, the complete number, and a check against the build.

Cummins DPF Kits

Two DPF kit references currently listed. Confirm the engine build, emissions stage, and complete number before ordering — a kit number alone does not establish fitment.

5579357

Cummins 5579357 DPF kit. Verify the engine build, emissions stage, and whether the kit is a DOC+DPF assembly or a bare DPF before ordering.

View 5579357 DPF Kit

5579292

Cummins 5579292 DPF kit. Confirm the installed aftertreatment arrangement and the complete reference on the unit being replaced.

View 5579292 DPF Kit

Before Choosing
a DPF Kit

Engine serial or build (CPL) number
Emissions stage
DOC, DPF, or combined assembly
Complete number on the unit

Where Cummins DPF Filter Fitment Goes Wrong

Similar appearance and familiar references can hide a different application. Review these common mix-ups before confirming an order.

Ordering by Model Name Alone

The same designation can carry different aftertreatment across years and emissions stages. The model badge does not tell you which unit your engine takes.

Check the buildConfirm the serial or build number, not the badge.

Buying a “DPF Filter” When the Build Needs a DOC+DPF Assembly

The number and the value are not the same thing. A “DPF kit” may be the combined assembly, not a bare DPF, and the word “filter” hides the difference.

Check the device typeConfirm DOC, DPF, or combined before you compare numbers.

Replacing a Unit That Only Needed Cleaning

An intact, ash-loaded unit may be cleanable. Replacing it is often money spent early — the condition, not the price, decides.

Check the conditionAsh-loaded (cleanable) or damaged (replace) — before you quote.

Fitting a Unit from the Wrong Emissions Stage

Stage-specific aftertreatment will not run correctly and can derate the engine. The emissions stage must match the build.

Check the stageEPA 2010, 2013, or Tier 4 — confirm before the number.

Quoting an Incomplete Number

A dropped prefix or suffix can deliver the wrong device. Quote the complete number from the removed unit, including every character.

Check both referencesWhere a number has changed, keep the old and current references.

How a Cummins DPF Filter Requirement Is Quoted

Four steps, each one checkable before a number is offered.

You Send the Records

The build records, emissions stage, device type, complete number, condition, and route.

We Check Each Line

Each line is checked against the parts record and the installed position.

We State the Offer

The offered item, its maker, the complete number, quantity, compliance status, and delivery terms.

Unconfirmed Is Marked

Anything unconfirmed is marked — never guessed.

There is no real-time inventory feed and no published price list. Availability, pricing, warranty, core, and lead-time terms are confirmed per quotation. Multi-engine lists are quoted line by line — for bulk supply, ask about our bulk filter supply terms.

Frequently Asked Questions

What is a Cummins DPF filter?

A diesel particulate filter is the aftertreatment device that traps soot from a Cummins engine’s exhaust. Regeneration burns the soot; the incombustible ash that remains must be cleaned out or the unit replaced. It is build- and emissions-stage-specific.

Should I clean or replace my Cummins DPF?

An intact, ash-loaded unit can often be cleaned; a cracked or melted unit must be replaced. The condition, not the price, decides — confirm against the unit and the build.

What is the difference between a DOC and a DPF?

The DOC oxidises the exhaust upstream; the DPF traps soot. They are often combined in one can, so a “DPF kit” may actually be a DOC+DPF assembly with a different number and value.

Why does my Cummins DPF number not match the cross-reference chart?

Usually one of four: a supersession, an emissions-stage difference, a build variation, or DOC/DPF/combined packaging the chart did not distinguish. Send both numbers with the engine serial.

Can I use an aftermarket Cummins DPF instead of a genuine one?

State the requirement before quoting; any alternative is labelled as one. Compare the device type, the emissions compliance, and the terms — not the price alone.

Confirm the Build, Then the Number

A Cummins DPF filter is quoted against a build, an emissions stage, and a complete number, in that order. Record the engine serial, decide clean-or-replace on the unit’s condition, and confirm whether it is a DOC, a DPF, or a combined assembly before you order. Send the engine serial or build (CPL) number, the emissions stage, the complete number on the unit, and whether you need a genuine original, a remanufactured unit, or an alternative. We will confirm the item and the delivery terms line by line.