Description
Fleetguard AF26363 primary radial-seal air filter for Mack MP7, MP8, and ASET diesel engines, manufactured by Cummins Filtration. Uses flame-resistant media in an outside-in airflow design that keeps high dust load off the secondary filter and engine intake. Replaces Mack 57MD320M and fits the Mack 2MD515M air cleaner housing used on Mack Pinnacle, Granite, Vision, and CHU/CXU trucks with MP7/MP8 power.
Signs You Need a New Air Filter
- Reduced engine power or sluggish acceleration
- Decreased fuel economy
- Black smoke from exhaust under load
- Air filter restriction indicator illuminated
- Visible dirt, debris, or damage on filter element
Specifications
| Manufacturer | Fleetguard (Cummins Filtration) |
|---|---|
| Part Number | AF26363 |
| Part Type | Primary Air Filter (Radial Seal) |
| Engine Compatibility | Mack MP7, MP8, ASET |
| Media | Flame-resistant cellulose |
| Airflow | Outside-in (radial seal) |
| Overall Length | 25.06 in (636.5 mm) |
| Outer Diameter | 9.33 in (237 mm) |
| Inner Diameter | 5.80 in (147.3 mm) |
| Air Cleaner Housing | Mack 2MD515M |
Cross References
This part replaces or is equivalent to the following part numbers:
- Mack: 57MD320M, 25100042
- Baldwin: RS4634
- Donaldson: EAF5114, DBA5114, P616691
- Luber-Finer: LAF5114MXM
- WIX: 42808
- NAPA: 2808
- Hastings: AF2374
- FRAM: CA9869
Applications
This air filter fits the following engines:
- Mack MP7 (2007-present)
- Mack MP8 (2007-present)
- Mack ASET AC, AI, AMI
Representative vehicles using these engines:
- Mack Pinnacle CHU, CXU (2007-present)
- Mack Granite GU (2007-present)
- Mack Vision CX, CXN (with ASET)
- Mack Anthem (with MP7 / MP8, compatible housing)
Verify your air cleaner housing is the 2MD515M before ordering — older Mack housings use a different element.
