WIX 51522 vs Champ PH16: Oil Filter Compatibility
Compare WIX 51522 and Champ PH16 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 13/16-16 thread.
Quick verdict
Bypass present on both, PSI unknown on one or both
- 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.
WIX 51522 and Champ PH16 specifications
How matching is scored| Specification | WIX 51522 | Champ PH16 |
|---|---|---|
| Thread size | 13/16-16 | 13/16-16 |
| Gasket OD | 69.44 mm | 70.1 mm |
| Gasket ID | 61.72 mm | 62.5 mm |
| Can OD | 74.19 mm | 93 mm |
| Height | 115 mm | 103 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | Unknown | 12 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 13/16-16.
Gasket OD differs by 0.7 mm (WIX 51522: 69.44 mm, Champ PH16: 70.1 mm).
Gasket ID differs by 0.8 mm (WIX 51522: 61.72 mm, Champ PH16: 62.5 mm).
WIX 51522 is 12 mm taller (WIX 51522: 115 mm, Champ PH16: 103 mm) -- check clearance before substituting.
Can OD differs by 18.8 mm (WIX 51522: 74.19 mm, Champ PH16: 93 mm).
Both include an internal bypass valve.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.