Baldwin B49 vs WIX 51722: Oil Filter Compatibility
Compare Baldwin B49 and WIX 51722 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 11/2-16 thread.
Quick verdict
Candidate adds internal bypass; usually redundant with engine-mounted bypass · 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 B49 and WIX 51722 specifications
How matching is scored| Specification | Baldwin B49 | WIX 51722 |
|---|---|---|
| Thread size | 11/2-16 | 11/2-16 |
| Gasket OD | 110 mm | 109.7 mm |
| Gasket ID | 98 mm | 96.52 mm |
| Can OD | 118.3 mm | 118.3 mm |
| Height | 285.8 mm | 262.76 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | 13 - 19 |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 11/2-16.
Gasket OD differs by 0.3 mm (Baldwin B49: 110 mm, WIX 51722: 109.7 mm).
Gasket ID differs by 1.5 mm (Baldwin B49: 98 mm, WIX 51722: 96.52 mm).
Baldwin B49 is 23 mm taller (Baldwin B49: 285.8 mm, WIX 51722: 262.76 mm) -- check clearance before substituting.
Can OD is identical at 118.3 mm.
Bypass valve presence differs: WIX 51722 has one, Baldwin B49 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.