LUBER-FINER LFP1 vs Fleetguard LF3638: Oil Filter Compatibility
Compare LUBER-FINER LFP1 and Fleetguard LF3638 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
Candidate adds ADBV
- 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.
LUBER-FINER LFP1 and Fleetguard LF3638 specifications
How matching is scored| Specification | LUBER-FINER LFP1 | Fleetguard LF3638 |
|---|---|---|
| Thread size | 3/4-16UNF | 3/4-16 UNF-2B |
| Gasket OD | 70 mm | 71.88 mm |
| Gasket ID | 61 mm | 62.53 mm |
| Can OD | 97 mm | 94 mm |
| Height | 131 mm | 127 mm |
| Internal bypass valve | No | No |
| Bypass PSID | Not applicable | Not applicable |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 1.9 mm (LUBER-FINER LFP1: 70 mm, Fleetguard LF3638: 71.88 mm).
Gasket ID differs by 1.5 mm (LUBER-FINER LFP1: 61 mm, Fleetguard LF3638: 62.53 mm).
LUBER-FINER LFP1 is 4 mm taller (LUBER-FINER LFP1: 131 mm, Fleetguard LF3638: 127 mm) -- check clearance before substituting.
Can OD differs by 3 mm (LUBER-FINER LFP1: 97 mm, Fleetguard LF3638: 94 mm).
Anti-drainback valve differs: Fleetguard LF3638 has one, LUBER-FINER LFP1 does not.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.