Fleetguard LF3651 vs FRAM PH4469: Oil Filter Compatibility
Compare Fleetguard LF3651 and FRAM PH4469 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 11/8-16 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 LF3651 and FRAM PH4469 specifications
How matching is scored| Specification | Fleetguard LF3651 | FRAM PH4469 |
|---|---|---|
| Thread size | 1 1/8-16 UN-2B | 11/8-16UN |
| Gasket OD | 100.46 mm | 103 mm |
| Gasket ID | 91.31 mm | 91 mm |
| Can OD | 109 mm | 107.7 mm |
| Height | 168 mm | 167.39 mm |
| Internal bypass valve | Unknown | Yes |
| Bypass PSID | Unknown | 12 |
| Anti-drainback valve | Unknown | Yes |
What matters in this specific comparison
Thread size matches: both are 11/8-16.
Gasket OD differs by 2.5 mm (Fleetguard LF3651: 100.46 mm, FRAM PH4469: 103 mm).
Gasket ID differs by 0.3 mm (Fleetguard LF3651: 91.31 mm, FRAM PH4469: 91 mm).
Fleetguard LF3651 is 0.6 mm taller (Fleetguard LF3651: 168 mm, FRAM PH4469: 167.39 mm) -- check clearance before substituting.
Can OD differs by 1.3 mm (Fleetguard LF3651: 109 mm, FRAM PH4469: 107.7 mm).
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.