Baldwin BT234 vs WIX WL10291: Oil Filter Compatibility
Compare Baldwin BT234 and WIX WL10291 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 11/8-16 thread.
Quick verdict
Both use a 11/8-16 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 BT234 and WIX WL10291 specifications
How matching is scored| Specification | Baldwin BT234 | WIX WL10291 |
|---|---|---|
| Thread size | 11/8-16 | 11/8-16 |
| Gasket OD | 102 mm | 100.8 mm |
| Gasket ID | 92 mm | 91.11 mm |
| Can OD | 108.7 mm | 108.8 mm |
| Height | 204 mm | 205.6 mm |
| Internal bypass valve | No | Yes |
| Bypass PSID | Not applicable | 14 |
| Anti-drainback valve | No | Yes |
What matters in this specific comparison
Thread size matches: both are 11/8-16.
Gasket OD differs by 1.2 mm (Baldwin BT234: 102 mm, WIX WL10291: 100.8 mm).
Gasket ID differs by 0.9 mm (Baldwin BT234: 92 mm, WIX WL10291: 91.11 mm).
WIX WL10291 is 1.6 mm taller (Baldwin BT234: 204 mm, WIX WL10291: 205.6 mm) -- check clearance before substituting.
Can OD differs by 0.1 mm (Baldwin BT234: 108.7 mm, WIX WL10291: 108.8 mm).
Bypass valve presence differs: WIX WL10291 has one, Baldwin BT234 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.