WIX 51046 vs Baldwin B329: Oil Filter Compatibility
Compare WIX 51046 and Baldwin B329 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.
WIX 51046 and Baldwin B329 specifications
How matching is scored| Specification | WIX 51046 | Baldwin B329 |
|---|---|---|
| Thread size | 13/16-16 | 13/16-16 |
| Gasket OD | 87.48 mm | 88.1 mm |
| Gasket ID | 78.74 mm | 78.6 mm |
| Can OD | 93 mm | 93.7 mm |
| Height | 96.3 mm | 98.4 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 13 - 19 | 20 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 13/16-16.
Gasket OD differs by 0.6 mm (WIX 51046: 87.48 mm, Baldwin B329: 88.1 mm).
Gasket ID differs by 0.1 mm (WIX 51046: 78.74 mm, Baldwin B329: 78.6 mm).
Baldwin B329 is 2.1 mm taller (WIX 51046: 96.3 mm, Baldwin B329: 98.4 mm) -- check clearance before substituting.
Can OD differs by 0.7 mm (WIX 51046: 93 mm, Baldwin B329: 93.7 mm).
Both open their bypass valve in a comparable range: WIX 51046 at 13-19 psi, Baldwin B329 at 20-20 psi -- these ranges do not overlap.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.