WIX 51068MP vs Champ PH400: Oil Filter Compatibility
Compare WIX 51068MP and Champ PH400 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.
WIX 51068MP and Champ PH400 specifications
How matching is scored| Specification | WIX 51068MP | Champ PH400 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 71.98 mm | 70.1 mm |
| Gasket ID | 62.53 mm | 62.5 mm |
| Can OD | 93 mm | 93.73 mm |
| Height | 110.2 mm | 104.9 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 - 11 | 14 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 1.9 mm (WIX 51068MP: 71.98 mm, Champ PH400: 70.1 mm).
Gasket ID is identical at 62.53 mm.
WIX 51068MP is 5.3 mm taller (WIX 51068MP: 110.2 mm, Champ PH400: 104.9 mm) -- check clearance before substituting.
Can OD differs by 0.7 mm (WIX 51068MP: 93 mm, Champ PH400: 93.73 mm).
Both open their bypass valve in a comparable range: WIX 51068MP at 8-11 psi, Champ PH400 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.