Request a quote
Get a Quote for Engine Filters
Email and phone are required. Leave anything you don't know blank.
Menu
Menu
Cummins DEF Filters
Cummins 5303604 DEF Filter Kit
The Cummins 5303604 DEF filter kit is a urea filter for the SCR aftertreatment system on EPA13 15-litre ISX/QSX engines. The element your engine takes is confirmed against the engine build and the complete number — not by the number alone.
- Part number
- 5303604
- Type
- DEF / urea filter kit
- Engine reference
- EPA13 15-litre ISX/QSX
Availability and delivery terms confirmed with quotation.
What This Page Covers — and What It Does Not
This page covers the Cummins 5303604 DEF filter kit as a reference number: how it relates to the Fleetguard UF101 element, what to confirm, and how a requirement is quoted. The rest of the range sits under the Cummins DEF filters page.
This is not a stock list, a price list, or a fitment certificate. Availability, pricing, warranty, and delivery terms are confirmed per quotation. With the build and the old element’s number, request a quote.
Engine model & build
Send the engine maker, model and full serial or build number, and the emissions stage.
Installed position
Confirm the DEF/urea filter position and the SCR system arrangement.
Complete old part number
Send the full number printed on the removed element, including every suffix. If two records disagree, send both.
The Cummins 5303604 DEF Filter Kit and the UF101 Element
A Cummins 5303604 DEF filter kit is the Cummins numbering for a DEF filter. The Fleetguard UF101 is the same physical filter under Fleetguard’s numbering, since Fleetguard is Cummins Filtration’s filter brand.
| Check | Value to compare | How to confirm |
|---|---|---|
| Cummins Kit Number | 5303604 | Check the build record |
| Fleetguard Element | UF101 | Confirm via engine serial |
| Known Application | EPA13 15-litre ISX/QSX engines | Match the old element |
| Function | Removes urea crystals & particulates | Verify the maker on the part |
Swipe horizontally to view all columns.
5303604 Cross-References
| Brand | Candidate reference |
|---|---|
| Cummins | 5303604 |
| Fleetguard | UF101 |
Candidate references only. Lists differ; confirm against the engine record.
Applications & ordering
Start with the engine, not the number.
EPA13 15-litre ISX/QSX engines
Cummins’ own parts listing describes this kit as used primarily on EPA13 15-litre ISX/QSX engines. The Fleetguard UF101 is the element reference for the same filter, under Fleetguard’s numbering.
The application is confirmed against the build, not assumed from the badge.
Know exactly what is being quoted.
Each line is checked against the parts record and filter position. Your quotation states the offered item, maker, complete part number, quantity and delivery terms.
Availability is confirmed against your list. No real-time stock feed is published.
Request a QuoteFrequently Asked Questions
Is Cummins 5303604 the same as Fleetguard UF101?
Fleetguard UF101 is the element reference for the same DEF filter; 5303604 is the Cummins kit number. Fitment is confirmed against the engine build, not the number alone.
How do I confirm 5303604 fits my engine?
By the engine serial or build number, the complete number on the removed element, and the installed position.
Can I cross-reference 5303604 to another brand?
A cross-reference is a candidate to review, not proof of fitment. Send both numbers with the build.
Confirm the Build, Then the Number
A Cummins 5303604 DEF filter kit is quoted against an engine build, an installed position, and a complete number, in that order. Confirm the SCR system and the number on the removed element before ordering. Send the engine serial or build number, the complete number on the element being replaced, the position, and whether you need a genuine original or an alternative. We will confirm the item and the delivery terms line by line.