Description
AF55015 Air Filter for Cummins QSB/QSC/QSL Diesel Engines
Heavy-duty air filter for Cummins QSB6.7, QSC, QSC9, and QSL9 diesel engines powering construction equipment, agricultural machinery, marine vessels, and industrial generators. Direct Flow 1200 Series design provides high airflow and dust capacity for turbocharged engines.
Key Features
-
Direct Flow 1200 Series: High-capacity radial seal for turbocharged diesels
-
Heavy-Duty Media: Cellulose/synthetic blend — handles high dust loads
-
OEM Equivalent: Matches Cummins filtration specifications
Compatibility
| Engine |
Tier |
Applications |
| Cummins QSB6.7 |
Tier 4 Final/Interim |
Excavators, wheel loaders, tractors |
| Cummins QSC/QSC9 |
Tier 3/4 |
Cranes, drill rigs, pumps |
| Cummins QSL9 |
Tier 4 Final/Interim |
Generators, marine propulsion |
Cross-Reference
| Brand |
Part Number |
| Cummins/Fleetguard |
AF55015, AF2501 |
| Donaldson |
PA31000 |
| Baldwin |
5261250 |
| WIX |
WA10715, 500715 |
Why Air Filter Maintenance Matters
A QSB6.7 at full load inhales over 500 CFM. A restricted filter forces the turbo harder, raising EGTs. A failed filter allows silica dust into cylinders, sanding rings and liners. A $150 filter prevents a $15,000 rebuild.
Frequently Asked Questions
Q: Will this fit my Bobcat with QSB6.7?
A: If your Bobcat uses the Direct Flow 1200 housing, yes. Verify your existing filter number.
Q: How often should I replace it?
A: Check restriction indicator daily. Replace when indicated, 500-1,000 hours typical.
Q: Can I clean and reuse it?
A: No — dry-type disposable. Do not wash or oil.
Q: Difference vs AF55020?
A: AF55015 for larger engines. AF55020 for smaller QSF/QSB4.5.
Related Products
