Product Overview
Fleetguard AF4331 Nanofiber Primary Air Filter
Genuine Fleetguard AF4331 nanofiber primary air filter is designed for compatible heavy-duty engine air-intake systems requiring high filtration efficiency and reliable airflow. The AF4331 uses nanofiber filtration media to help capture dust, dirt, and other airborne contaminants before they reach critical engine components. It provides 99.99% full-life efficiency under ISO 5011 testing and cross-references Donaldson P648156, P634517 and P619498, Baldwin CA30132, NAPA 500925, Wix WA10925, Carquest 93795, Luber Finer LAF9498, and the Freightliner and Western Star numbers listed below.
Fleetguard AF4331 Air Filter Cross References
| Manufacturer or Brand | AF4331 Cross-Reference Part Number |
|---|---|
| Fleetguard | AF4331 |
| Donaldson | P648156, P634517, P619498 |
| Baldwin | CA30132 |
| NAPA | 500925 |
| Wix | WA10925 |
| Carquest | 93795 |
| Luber Finer | LAF9498 |
| Western Star | P619498 |
| Freightliner | P634517, P619498 |
Genuine Fleetguard AF4331 Filter Features
- Primary engine air filtration: Genuine Fleetguard AF4331 is designed to capture airborne dust, dirt, and debris before they reach critical engine components.
- Nanofiber filter media: Uses advanced nanofiber filtration media to provide high-efficiency contaminant capture in compatible heavy-duty air-intake systems.
- High filtration efficiency: Fleetguard specifies 99.99% full-life efficiency under ISO 5011 testing.
- Heavy-duty application coverage: Cross-reference coverage includes Freightliner and Western Star heavy-duty truck applications.
- Broad interchange family: Crosses Donaldson P648156, P634517 and P619498, Baldwin CA30132, Wix WA10925, and Luber Finer LAF9498.
Fleetguard AF4331 Air Filter Specifications
| Filter Specification | Measurement or Value |
|---|---|
| Filter Type | Primary air filter |
| Media Type | Nanofiber |
| Overall Length | 9.96 in / 253.10 mm |
| Largest Outside Diameter | 14.85 in / 377.30 mm |
| Efficiency Test Standard | ISO 5011 |
| Full Life Efficiency | 99.99% |
Cross-reference numbers are provided for identification purposes. Always verify filter compatibility using the original filter part number, vehicle or equipment model, engine, air-cleaner housing, dimensions, and specifications before placing an order.
⚠️ California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
