Baldwin B1428 vs WIX 51620: Oil Filter Compatibility
Compare Baldwin B1428 and WIX 51620 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 13/16-16 thread.
Quick verdict
Both use a 13/16-16 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 B1428 and WIX 51620 specifications
How matching is scored| Specification | Baldwin B1428 | WIX 51620 |
|---|---|---|
| Thread size | 13/16-16 | 13/16-16 |
| Gasket OD | 91 mm | 87.48 mm |
| Gasket ID | 80 mm | 78.74 mm |
| Can OD | 93.7 mm | 93.75 mm |
| Height | 135.7 mm | 132 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | 8 - 11 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 13/16-16.
Gasket OD differs by 3.5 mm (Baldwin B1428: 91 mm, WIX 51620: 87.48 mm).
Gasket ID differs by 1.3 mm (Baldwin B1428: 80 mm, WIX 51620: 78.74 mm).
Baldwin B1428 is 3.7 mm taller (Baldwin B1428: 135.7 mm, WIX 51620: 132 mm) -- check clearance before substituting.
Can OD is identical at 93.7 mm.
Bypass valve presence differs: WIX 51620 has one, Baldwin B1428 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.