Baldwin B56 vs Champ PH500: Oil Filter Compatibility
Compare Baldwin B56 and Champ PH500 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 M22x1.5 thread.
Quick verdict
Candidate adds ADBV
- 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.
Baldwin B56 and Champ PH500 specifications
How matching is scored| Specification | Baldwin B56 | Champ PH500 |
|---|---|---|
| Thread size | M22x1.5 | M22x1.5 |
| Gasket OD | 69.9 mm | 70.1 mm |
| Gasket ID | 60.9 mm | 62.5 mm |
| Can OD | 76.2 mm | 75.69 mm |
| Height | 123 mm | 103.63 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 19 | 15 - 16 |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are M22x1.5.
Gasket OD differs by 0.2 mm (Baldwin B56: 69.9 mm, Champ PH500: 70.1 mm).
Gasket ID differs by 1.6 mm (Baldwin B56: 60.9 mm, Champ PH500: 62.5 mm).
Baldwin B56 is 19.4 mm taller (Baldwin B56: 123 mm, Champ PH500: 103.63 mm) -- check clearance before substituting.
Can OD differs by 0.5 mm (Baldwin B56: 76.2 mm, Champ PH500: 75.69 mm).
Both open their bypass valve in a comparable range: Baldwin B56 at 19-19 psi, Champ PH500 at 15-16 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.