Champ PH2835 vs WIX 51391: Oil Filter Compatibility
Compare Champ PH2835 and WIX 51391 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 -13.7 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 PH2835 and WIX 51391 specifications
How matching is scored| Specification | Champ PH2835 | WIX 51391 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 62.7 mm | 62.87 mm |
| Gasket ID | 54.6 mm | 55.19 mm |
| Can OD | 76.2 mm | 82.14 mm |
| Height | 89.66 mm | 103.4 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 14 | 13 - 19 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.2 mm (Champ PH2835: 62.7 mm, WIX 51391: 62.87 mm).
Gasket ID differs by 0.6 mm (Champ PH2835: 54.6 mm, WIX 51391: 55.19 mm).
WIX 51391 is 13.7 mm taller (Champ PH2835: 89.66 mm, WIX 51391: 103.4 mm) -- check clearance before substituting.
Can OD differs by 5.9 mm (Champ PH2835: 76.2 mm, WIX 51391: 82.14 mm).
Both open their bypass valve in a comparable range: Champ PH2835 at 14-14 psi, WIX 51391 at 13-19 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.