WIX 51609 vs Baldwin BT364: Oil Filter Compatibility
Compare WIX 51609 and Baldwin BT364 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 1-12 thread.
Quick verdict
Large bypass PSI mismatch: 10.5 psi · Candidate removes 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.
WIX 51609 and Baldwin BT364 specifications
How matching is scored| Specification | WIX 51609 | Baldwin BT364 |
|---|---|---|
| Thread size | 1-12 | 1-12 |
| Gasket OD | 72.52 mm | 71.4 mm |
| Gasket ID | 63.25 mm | 62.7 mm |
| Can OD | 93.73 mm | 93.7 mm |
| Height | 135.6 mm | 136.5 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 - 11 | 20 |
| Anti-drainback valve | Yes | No |
What matters in this specific comparison
Thread size matches: both are 1-12.
Gasket OD differs by 1.1 mm (WIX 51609: 72.52 mm, Baldwin BT364: 71.4 mm).
Gasket ID differs by 0.5 mm (WIX 51609: 63.25 mm, Baldwin BT364: 62.7 mm).
Baldwin BT364 is 0.9 mm taller (WIX 51609: 135.6 mm, Baldwin BT364: 136.5 mm) -- check clearance before substituting.
Can OD is identical at 93.73 mm.
Both open their bypass valve in a comparable range: WIX 51609 at 8-11 psi, Baldwin BT364 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.