Baldwin B1444 vs Champ PH253: Oil Filter Compatibility
Compare Baldwin B1444 and Champ PH253 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.
Baldwin B1444 and Champ PH253 specifications
How matching is scored| Specification | Baldwin B1444 | Champ PH253 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 71.4 mm | 70.6 mm |
| Gasket ID | 62.7 mm | 62.2 mm |
| Can OD | 76.2 mm | 92.96 mm |
| Height | 72.2 mm | 93.98 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 | 8 - 11 |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 0.8 mm (Baldwin B1444: 71.4 mm, Champ PH253: 70.6 mm).
Gasket ID differs by 0.5 mm (Baldwin B1444: 62.7 mm, Champ PH253: 62.2 mm).
Champ PH253 is 21.8 mm taller (Baldwin B1444: 72.2 mm, Champ PH253: 93.98 mm) -- check clearance before substituting.
Can OD differs by 16.8 mm (Baldwin B1444: 76.2 mm, Champ PH253: 92.96 mm).
Both open their bypass valve in a comparable range: Baldwin B1444 at 8-8 psi, Champ PH253 at 8-11 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.