FRAM PH49A vs WIX WL10308: Oil Filter Compatibility
Compare FRAM PH49A and WIX WL10308 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
Both use a 11/8-16 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.
FRAM PH49A and WIX WL10308 specifications
How matching is scored| Specification | FRAM PH49A | WIX WL10308 |
|---|---|---|
| Thread size | 1"1/8-16 | 11/8-16 |
| Gasket OD | 102 mm | 101.3 mm |
| Gasket ID | 92 mm | 93.83 mm |
| Can OD | 107.7 mm | 110.4 mm |
| Height | 263.91 mm | 187.3 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 12 | 14 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 11/8-16.
Gasket OD differs by 0.7 mm (FRAM PH49A: 102 mm, WIX WL10308: 101.3 mm).
Gasket ID differs by 1.8 mm (FRAM PH49A: 92 mm, WIX WL10308: 93.83 mm).
FRAM PH49A is 76.6 mm taller (FRAM PH49A: 263.91 mm, WIX WL10308: 187.3 mm) -- check clearance before substituting.
Can OD differs by 2.7 mm (FRAM PH49A: 107.7 mm, WIX WL10308: 110.4 mm).
Both open their bypass valve in a comparable range: FRAM PH49A at 12-12 psi, WIX WL10308 at 14-14 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.