LUBER-FINER LFP3191 vs NAPA Gold 1791: Oil Filter Compatibility
Compare LUBER-FINER LFP3191 and NAPA Gold 1791 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
Candidate adds internal bypass; usually redundant with engine-mounted bypass · 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 LFP3191 and NAPA Gold 1791 specifications
How matching is scored| Specification | LUBER-FINER LFP3191 | NAPA Gold 1791 |
|---|---|---|
| Thread size | 11/8-16 | 11/8-16 |
| Gasket OD | 110 mm | 108 mm |
| Gasket ID | 98 mm | 98 mm |
| Can OD | 108.71 mm | 108.8 mm |
| Height | 261.87 mm | 263.27 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | 13 - 19 |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 11/8-16.
Gasket OD differs by 2 mm (LUBER-FINER LFP3191: 110 mm, NAPA Gold 1791: 108 mm).
Gasket ID is identical at 98 mm.
NAPA Gold 1791 is 1.4 mm taller (LUBER-FINER LFP3191: 261.87 mm, NAPA Gold 1791: 263.27 mm) -- check clearance before substituting.
Can OD differs by 0.1 mm (LUBER-FINER LFP3191: 108.71 mm, NAPA Gold 1791: 108.8 mm).
Bypass valve presence differs: NAPA Gold 1791 has one, LUBER-FINER LFP3191 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.