Champ PH48 vs WIX WL7426: Oil Filter Compatibility
Compare Champ PH48 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
Closest known dimensional difference: height -9.1 mm. Verify application-specific requirements before substituting.
- 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.
Champ PH48 and WIX WL7426 specifications
How matching is scored| Specification | Champ PH48 | WIX WL7426 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 70.4 mm | 70.1 mm |
| Gasket ID | 62.2 mm | 61.98 mm |
| Can OD | 93.73 mm | 84.1 mm |
| Height | 104.9 mm | 114 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 15 | 14 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.3 mm (Champ PH48: 70.4 mm, WIX WL7426: 70.1 mm).
Gasket ID differs by 0.2 mm (Champ PH48: 62.2 mm, WIX WL7426: 61.98 mm).
WIX WL7426 is 9.1 mm taller (Champ PH48: 104.9 mm, WIX WL7426: 114 mm) -- check clearance before substituting.
Can OD differs by 9.6 mm (Champ PH48: 93.73 mm, WIX WL7426: 84.1 mm).
Both open their bypass valve in a comparable range: Champ PH48 at 15-15 psi, WIX WL7426 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.