Champ PH16 vs WIX 51522MP: Oil Filter Compatibility
Compare Champ PH16 and WIX 51522MP 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
Closest known dimensional difference: height +12 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 PH16 and WIX 51522MP specifications
How matching is scored| Specification | Champ PH16 | WIX 51522MP |
|---|---|---|
| Thread size | 13/16-16 | 13/16-16 |
| Gasket OD | 70.1 mm | 69.44 mm |
| Gasket ID | 62.5 mm | 61.72 mm |
| Can OD | 93 mm | 74.19 mm |
| Height | 103 mm | 115 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 12 | 13 - 19 |
| 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 (Champ PH16: 70.1 mm, WIX 51522MP: 69.44 mm).
Gasket ID differs by 0.8 mm (Champ PH16: 62.5 mm, WIX 51522MP: 61.72 mm).
WIX 51522MP is 12 mm taller (Champ PH16: 103 mm, WIX 51522MP: 115 mm) -- check clearance before substituting.
Can OD differs by 18.8 mm (Champ PH16: 93 mm, WIX 51522MP: 74.19 mm).
Both open their bypass valve in a comparable range: Champ PH16 at 12-12 psi, WIX 51522MP at 13-19 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.