Baldwin BT223 vs Baldwin B159: Oil Filter Compatibility
Compare Baldwin BT223 and Baldwin B159 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 BT223 and Baldwin B159 specifications
How matching is scored| Specification | Baldwin BT223 | Baldwin B159 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 69.9 mm | 71.98 mm |
| Gasket ID | 60.9 mm | 62.53 mm |
| Can OD | 73.8 mm | 76.2 mm |
| Height | 88.9 mm | 103.2 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 | 8 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD differs by 2.1 mm (Baldwin BT223: 69.9 mm, Baldwin B159: 71.98 mm).
Gasket ID differs by 1.6 mm (Baldwin BT223: 60.9 mm, Baldwin B159: 62.53 mm).
Baldwin B159 is 14.3 mm taller (Baldwin BT223: 88.9 mm, Baldwin B159: 103.2 mm) -- check clearance before substituting.
Can OD differs by 2.4 mm (Baldwin BT223: 73.8 mm, Baldwin B159: 76.2 mm).
Both open their bypass valve in a comparable range: Baldwin BT223 at 8-8 psi, Baldwin B159 at 8-8 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.