Baldwin B143 vs Champ PH3600: Oil Filter Compatibility
Compare Baldwin B143 and Champ PH3600 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 B143 and Champ PH3600 specifications
How matching is scored| Specification | Baldwin B143 | Champ PH3600 |
|---|---|---|
| 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 | 76.2 mm | 77.72 mm |
| Height | 129.4 mm | 122.94 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | 12 |
| 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 (Baldwin B143: 71.98 mm, Champ PH3600: 70.1 mm).
Gasket ID is identical at 62.53 mm.
Baldwin B143 is 6.5 mm taller (Baldwin B143: 129.4 mm, Champ PH3600: 122.94 mm) -- check clearance before substituting.
Can OD differs by 1.5 mm (Baldwin B143: 76.2 mm, Champ PH3600: 77.72 mm).
Bypass valve presence differs: Champ PH3600 has one, Baldwin B143 does not.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.