NAPA Gold 1191 vs WIX WL7426: Oil Filter Compatibility
Compare NAPA Gold 1191 and WIX WL7426 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
Both use a 3/4-16 thread.
- 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.
NAPA Gold 1191 and WIX WL7426 specifications
How matching is scored| Specification | NAPA Gold 1191 | WIX WL7426 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 69.6 mm | 70.1 mm |
| Gasket ID | 60.2 mm | 61.98 mm |
| Can OD | 92.96 mm | 84.1 mm |
| Height | 131.5 mm | 114 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 13 - 19 | 14 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.5 mm (NAPA Gold 1191: 69.6 mm, WIX WL7426: 70.1 mm).
Gasket ID differs by 1.8 mm (NAPA Gold 1191: 60.2 mm, WIX WL7426: 61.98 mm).
NAPA Gold 1191 is 17.5 mm taller (NAPA Gold 1191: 131.5 mm, WIX WL7426: 114 mm) -- check clearance before substituting.
Can OD differs by 8.9 mm (NAPA Gold 1191: 92.96 mm, WIX WL7426: 84.1 mm).
Both open their bypass valve in a comparable range: NAPA Gold 1191 at 13-19 psi, WIX WL7426 at 14-14 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.