Product Overview
Fleetguard AF25732 OptiAir Secondary Air Filter
Genuine Fleetguard AF25732 OptiAir™ secondary air filter is designed to provide an additional level of engine protection in compatible heavy-duty air-cleaner systems. The secondary safety element helps protect the engine from contaminants that may enter during primary-filter servicing or in the event of primary-element damage. The AF25732 cross-references Donaldson P609239, Baldwin RS4637, NAPA 6871, Wix 46871, Carquest 88871, Luber Finer LAF9102, International/Navistar 3532800C1, and Reytor IT3010S.
Fleetguard AF25732 Air Filter Cross References
| Manufacturer or Brand | AF25732 Cross-Reference Part Number |
|---|---|
| Fleetguard | AF25732 |
| Donaldson | P609239 |
| Baldwin | RS4637 |
| NAPA | 6871 |
| Wix | 46871 |
| Carquest | 88871 |
| Luber Finer | LAF9102 |
| Reytor | IT3010S |
| International/Navistar | 3532800C1 |
Genuine Fleetguard AF25732 Filter Features
- OptiAir™ secondary filtration: Genuine Fleetguard AF25732 secondary air element designed for compatible OptiAir heavy-duty air-cleaner systems.
- Secondary engine protection: Provides an additional filtration barrier behind the primary air element to help protect the engine from accidental contaminant entry.
- Safety-element design: Helps protect the clean side of the air-intake system during primary filter servicing or if the primary element becomes damaged.
- Heavy-duty construction: Designed to address the air-filtration requirements of commercial vehicles and other demanding equipment applications.
- International/Navistar applications: Cross-references International/Navistar 3532800C1 for compatible vehicle and air-cleaner applications.
Fleetguard AF25732 Air Filter Specifications
| Filter Specification | Measurement or Value |
|---|---|
| Filter Type | OptiAir secondary / safety air filter |
| Element Position | Secondary |
| Media Type | Polymeric fiber |
| Largest Outside Diameter | 8.05 in / approximately 204.4 mm |
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, primary and secondary filter configuration, 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.
