Baldwin BT395 vs WIX 51755: Oil Filter Compatibility
Compare Baldwin BT395 and WIX 51755 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 7/8-14 thread.
Quick verdict
Large bypass PSI mismatch: 6.5 psi · 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 BT395 and WIX 51755 specifications
How matching is scored| Specification | Baldwin BT395 | WIX 51755 |
|---|---|---|
| Thread size | 7/8-14 | 7/8-14 |
| Gasket OD | 71.4 mm | 69.32 mm |
| Gasket ID | 62.7 mm | 61.34 mm |
| Can OD | 93.7 mm | 92.96 mm |
| Height | 136.5 mm | 131.5 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 20 | 12 - 15 |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 7/8-14.
Gasket OD differs by 2.1 mm (Baldwin BT395: 71.4 mm, WIX 51755: 69.32 mm).
Gasket ID differs by 1.4 mm (Baldwin BT395: 62.7 mm, WIX 51755: 61.34 mm).
Baldwin BT395 is 5 mm taller (Baldwin BT395: 136.5 mm, WIX 51755: 131.5 mm) -- check clearance before substituting.
Can OD differs by 0.7 mm (Baldwin BT395: 93.7 mm, WIX 51755: 92.96 mm).
Both open their bypass valve in a comparable range: Baldwin BT395 at 20-20 psi, WIX 51755 at 12-15 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.