FB-73 Crankcase Breather Filter
Description:
FB-73 Crankcase Breather Filter
| Attribute | Details |
|---|---|
| Part Number | FB-73 |
| Description | Crankcase Breather / Ventilation Filter |
| Category | Heavy-duty engine filtration |
| Design | Radial flow paper filter media with molded rubber or metal top plate |
| Filter Type | Disposable (non-serviceable core) |
| Outer Diameter | ~4.5" (varies slightly by manufacturer) |
| Height | ~3.75" |
| Mount Style | Press-fit or grommet seated into valve cover or breather tube |
| Industry Standard | Meets SAE J726 specifications |
🔁 Cross Reference Numbers
| Manufacturer | Part Number |
|---|---|
| Baldwin | BA-10313 |
| Fleetguard | CV15000 |
| Donaldson | P551302 |
| Wix | 49150 |
| Fram | BA973 |
| Luber-Finer | LAF573 |
| Hastings | HCF150 |
| Cummins | 3897006 |
| AC Delco | B1367C |
| Carquest | 87150 |
🔍 Check neck diameter and seal type for exact match — some variants come with O-ring grooves or pressure-fit flanges.
🚜 Application Summary
FB-73 fits a broad range of industrial diesel engines and heavy-duty fleet vehicles. Typical installations include:
-
Detroit Diesel Series 60, 8V92, 6V71
-
Cummins N14, ISM, ISX pre-emission
-
Caterpillar 3406, C10–C13 (older gens)
-
International/Navistar DT466, T444E
-
Peterbilt, Freightliner, Mack, Volvo trucks
-
Off-highway & agricultural units: Deere, CASE, Komatsu, etc.
-
Power generation and marine applications where closed crankcase systems are required
💡 Function & Importance
-
Filters blow-by gases and airborne oil mist before routing back to intake or exhaust.
-
Reduces soot and oil vapor contamination in turbo and intercooler systems.
-
Complies with EPA crankcase emissions recirculation standards in fleet setups.
