Champ PH2870A vs WIX 51355: Oil Filter Compatibility
Compare Champ PH2870A and WIX 51355 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 -2.4 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 PH2870A and WIX 51355 specifications
How matching is scored| Specification | Champ PH2870A | WIX 51355 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 70.6 mm | 70.48 mm |
| Gasket ID | 62.2 mm | 62.23 mm |
| Can OD | 77.47 mm | 95.12 mm |
| Height | 116.08 mm | 113.7 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 30 | 33 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.1 mm (Champ PH2870A: 70.6 mm, WIX 51355: 70.48 mm).
Gasket ID is identical at 62.2 mm.
Champ PH2870A is 2.4 mm taller (Champ PH2870A: 116.08 mm, WIX 51355: 113.7 mm) -- check clearance before substituting.
Can OD differs by 17.7 mm (Champ PH2870A: 77.47 mm, WIX 51355: 95.12 mm).
Both open their bypass valve in a comparable range: Champ PH2870A at 30-30 psi, WIX 51355 at 33-33 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.