Fleetguard LF9325 vs Fleetguard LF3976: Oil Filter Compatibility
Compare Fleetguard LF9325 and Fleetguard LF3976 oil filters by compatibility, dimensions, thread size, gasket fit, bypass valve, anti-drainback valve status, and match confidence. Use this comparison as a fitment review, not as an automatic substitution guarantee. Both use a 11/2-12 thread.
Quick verdict
Bypass presence unknown on one or both filters · ADBV unknown on one or both filters
- Thread size is the first hard-fit check for any comparison of spin-on filters.
- Gasket OD and gasket ID are the most important seal-related dimensions.
- Height differences can matter for clearance even when thread and gasket fit appear close.
- Bypass and anti-drainback differences may be important, depending on the application.
Fleetguard LF9325 and Fleetguard LF3976 specifications
How matching is scored| Specification | Fleetguard LF9325 | Fleetguard LF3976 |
|---|---|---|
| Thread size | 1 1/2-12 UNS-2B | 1 1/2-12 UNS-2B |
| Gasket OD | 110.74 mm | 110.74 mm |
| Gasket ID | 98.88 mm | 98.17 mm |
| Can OD | 120 mm | 120 mm |
| Height | 287 mm | 287 mm |
| Internal bypass valve | Unknown | Unknown |
| Bypass PSID | Unknown | Unknown |
| Anti-drainback valve | Unknown | Unknown |
What matters in this specific comparison
Thread size matches: both are 11/2-12.
Gasket OD is identical at 110.74 mm.
Gasket ID differs by 0.7 mm (Fleetguard LF9325: 98.88 mm, Fleetguard LF3976: 98.17 mm).
Height is identical at 287 mm.
Can OD is identical at 120 mm.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.