Fleetguard LF3549 vs LUBER-FINER PH400: Oil Filter Compatibility
Compare Fleetguard LF3549 and LUBER-FINER PH400 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 3/4-16 thread.
Quick verdict
Large bypass PSI mismatch: 7.9 psi
- 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 LF3549 and LUBER-FINER PH400 specifications
How matching is scored| Specification | Fleetguard LF3549 | LUBER-FINER PH400 |
|---|---|---|
| Thread size | 3/4-16 UNF-2B | 3/4-16UNF |
| Gasket OD | 71.98 mm | 72 mm |
| Gasket ID | 62.53 mm | 62 mm |
| Can OD | 78 mm | 75.69 mm |
| Height | 116 mm | 105.16 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 17.41 | 8 - 11 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD is identical at 71.98 mm.
Gasket ID differs by 0.5 mm (Fleetguard LF3549: 62.53 mm, LUBER-FINER PH400: 62 mm).
Fleetguard LF3549 is 10.8 mm taller (Fleetguard LF3549: 116 mm, LUBER-FINER PH400: 105.16 mm) -- check clearance before substituting.
Can OD differs by 2.3 mm (Fleetguard LF3549: 78 mm, LUBER-FINER PH400: 75.69 mm).
Both open their bypass valve in a comparable range: Fleetguard LF3549 at 17.41-17.41 psi, LUBER-FINER PH400 at 8-11 psi -- these ranges do not overlap.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.